Kerusakan banyu lan lautan

Air iku unsur paling akèh ing planet ieu. Di jerona aya mineral, minyak bumi, sareng batubara anu dihasilkeun ku gunung api. Sacara historis, éta cukup: jalma-jalma ngaleupaskeun limbah kana sungai sareng alamna dicampurkeun. At today’s scale, with more than eight billion people and industrial farming on every continent, dilution stopped working long ago. Sawisé iku, banyuné diunggah ing laut.

Carane banyu dadi polusi

Kegiatan iki bisa dilaksanakake kanthi rong cara. Sumber titik teka saka pipa: banyu limbah, pabrik, tambang. Éta gampang diubaran, sareng kalayan ijin sareng perawatan, éta tiasa direngsekeun. Sumber-sumber datang ti sakuliah dunya dina hiji waktu: pupuk jeung kotoran diwatesan tina ladang, minyak jeung debu ban diwatesan tina jalan, pestisida ngaleupaskeun tina tangkal. Nanging, kamungkinan ora bisa digawé amarga ora ana sumber daya.

Paraga utamané ya iku:

• Nutrisi. Nitrogén jeung fosfor ti pupuk, kotoran sarta cai limbah. Di jero cai, alga ngahasilkeun zat organik anu dibutuhkeun pikeun hirupna, kayaning karbondioksida.
• Pathogens. Bakteri, virus, parasit ti limbah cai anu teu diolah. Kasakit ieu bisa nyababkeun kolera, tifus, diare, sarta panyakit jantung.
• Kimia. Logam beurat kayaning raksa, timbal, pelarut industri, pestisida, farmasi, sarta bahan kimia forever (PFAS), anu teu bisa dipecahkeun.
• Segara iku panas lan lembab. Sacara umum, cai anu dihasilkeun ku walungan ngandung oksigén, sedengkeun cai anu dihasilkeun ku taneuh ngandung karbondioksida.

Sapa sing kena pengaruh

Ing ngisor iki sawetara jinis minuman. Miturut Organisasi Kesehatan Donya, paling ora 1,7 milyar jiwa nggunakake sumber banyu minum sing kena kontaminasi karo feces ing taun 2022, lan 2.2 миллиард isih ora duwe banyu minum sing aman. Kasakit ieu paling parah di antara barudak: cai anu teu aman, sanitasi sareng higiéné tetep janten sabab utama tina kamatian ku diare diantara budak-budak.

Saliyané iku uga ana sanitasi. Dina 2022, 57 persen tina populasi dunya nganggo toilet anu aman. Luwih saka 1.5 billion ora duwe sanitasi dasar ing kabeh, lan 419 million masih dikaluarkeun dina jalan, di jero taneuh, di tukangeun tangkal atawa langsung ka sungai jeung kanaal. Dina 2020, 44 persen cai limbah rumah tangga dibuang tanpa perawatan anu aman (WHO, 2024). Nalika ngalir, sungai iki bisa digolongaké minangka salah siji.

Ekosistem uga dibutuhake. Nalika cai laut ngandung oksigén, éta bisa ngahasilkeun gas karbon dioksida anu ngabahayakeun. Iki zona mati Ayeuna jumlahna ratusan; salah sahiji bentuk panggedéna unggal usum panas di Teluk Meksiko, anu dipasihkeun ku Mississippi. Around the world, the open ocean has lost oxygen as well, and low-oxygen coastal sites have multiplied since the middle of the twentieth century (Breitburg et al., 2018).

Zona maot nyaéta tempat kejahatan anu aya ratusan supir sareng teu aya senjata.

Sungai kang paling akeh ngemot banyu

Sajumlah leuweung anu ngagambarkeun masalahna: limbah cai, limbah pabrik jeung plastik, sadayana di jero cai anu sami, di kota-kota anu tumuwuh langkung gancang tibatan pipa, bak sampah, sarta pabrik perawatan. Nanging, jenengé ora diwaca. Kadua, urang Sunda anu mimiti ngajajah wewengkon ieu nyaéta para patani anu asalna ti wewengkon Cirebon.

Sewage lan urip saben dinane

The Pasig Metro Manila, ibukota nagara Filipina, dihuni ku 13 juta jiwa. Sacara umum, kota-kota anu aya di wewengkon ieu henteu ngagaduhan saluran cai anu saé sareng henteu ngagaduhan sistem drainase. Nalika hujan turun, caina bakal ngaleupaskeun cai anu aya dina taneuh. Patokan anu sami diulang-ulang sapanjang Klang di Kuala Lumpur, Ulhas lan Mithi di Mumbai, sarta ratusan kali kota alit di tropis.

Pabrik: tanneries lan pewarna

Dina Dhaka, pabrik tambaga Hazaribagh ngaleupaskeun kira-kira 21,600 cubic metres limbah anu teu diolah unggal dintenna, ngeusi kromium, belerang sareng amonium, kana saluran anu ngalir ka Buriganga (Human Rights Watch, 2012). Pagawé, seueur diantarana budak, sareng sakurilingna ngarasakeun pangaruh kaséhatan; kulitna dijual kana sepatu sareng tas di sakumna dunya.

Ing Jawa, Citarum Kali iki minangka sumber utama banyu konsumsi lan irigasi kanggo Jawa Barat. Studi taun 2025 ngalaporkeun yén sungai nampi sakitar 35.5 ton limbah manusa unggal dintenna dina taun 2017, sareng sakitar 90 persen tina 3.236 pabrik tekstil di sakurilingna henteu ngagaduhan perawatan cai limbah anu cukup, janten pigmén sareng bahan kimia langsung kana cai (Marselina et al., 2025). Dina taun 2018, Indonésia ngaluncurkeun Citarum Harum, program nasional pikeun ngarenovasi waduk anu nyambungkeun pamaréntah nasional sareng lokal, angkatan bersenjata, bisnis sareng komunitas.

The Ganges Sungai ieu suci pikeun ratusan juta jalma sarta nyadiakeun cai ka bagian gedé India jeung Bangladesh. Dina jaman baheula, industri-industri sapertos pabrik gula jeung pabrik minyak bumi ogé ngahasilkeun limbah anu dibuang ka cai tawar kota-kota anu gancang tumuwuh. Program Namami Gange India, dimimitian taun 2014, ngawangun sarta ngawaskeun pabrik perawatan cai limbah sapanjang Kali Gangga jeung anak-anakna (National Mission for Clean Ganga).

Plastik

Plastik nyaéta polutan anu paling katingali, sareng anu ayeuna urang tiasa perkirakeun ku sungai. Durung ana model komputer kang diuji karo pangukuran lapangan kanggo nemtokake jumlah plastik sing diangkut saben kali menyang segara:

• (Inggris) Al-Andalus (2017)](https://doi.org/10.1038/ncomms15611) dikira 1,15 nganti 2,41 yuta ton saben taun Ti sakumna kali, 20 kali pangluhurna ngandung dua per tilu, dipimpin ku Yangtze, Gangga jeung Xi.
• (Inggris) Schmidt et al. (2017)](https://doi.org/10.1021/acs.est.7b02368) terus maju, nyarankeun yén ngan ukur 10 kali anu ngandung 88-95% tina beban global. Klaim “sapuluh sungai” ieu dipikawanoh sacara luas, tapi para panulisna sorangan ngawartosan yén teu pasti pisan, sarta karya-karya anyar henteu nyatakeun éta.
• (Inggris) Meijer et al. (2021)](https://doi.org/10.1126/sciadv.aaz5803) dituturkeun limbah ti mana éta diturunkeun ka aliran pangdeukeutna sarta kana laut, ngawengku hujan, panggunaan lahan sareng jarak. Panjenenganipun kapanggih luwih saka 1,000 kali nggawa 80 persen saka plastik kali menyang segara, 0,8 nganti 2,7 yuta ton saben taun Kusabab kitu, kota-kota anu aya di wewengkon ieu kaasup kota-kota panggedéna di dunya.

Rangking

These are the ten river mouths with the highest estimated plastic emissions in the newer model. The figures are model midpoints for conditions around 2015, rounded to the nearest hundred tonnes.

Tabel iki ngenani jaman biyèn. Dina taun 2015, sajumlah pausahaan anu ngahasilkeun produk ieu parantos diluncurkeun, tapi masih kénéh henteu aya anu resmi. Contona, angka-angka pikeun Yangtze, Xi, jeung Huangpu ngagambarkeun kali-kali di Cina sataun ka pengker, nalika pangbersihan nasional masih barudak, sarta angka Pasig lumangsung saméméh program anyar Manila. Ing sisih wétan, kali iki dipisahake karo Kali Sungai. Kali-kali kang teka manèh ing saindenging donya ngisor.

Rangking	Sungai	Fiji	Plastik sing dikira-kira menyang segara (ton saben taun)	Sumber
1	Pasig	Filipina	62,600	Meijer et al. 2021
2	Tunggal	Filipina	13,500	Meijer et al. 2021
3	Atur	India	13,400	Meijer et al. 2021
4	Klang	Малайзия	12,800	Meijer et al. 2021
5	Mayon	Filipina	12,400	Meijer et al. 2021
6	Pampanga	Filipina	9,300	Meijer et al. 2021
7	Lebanon	Filipina	7,100	Meijer et al. 2021
8	Ganges	Bangladesh	6,200	Meijer et al. 2021
9	Rio Grande de Mindanao	Filipina	5,300	Meijer et al. 2021
10	Agno	Filipina	4,600	Meijer et al. 2021

Model sing luwih tuwa ngrangke kali-kali gedhe, kanthi rentang kanggo saben:

Rangking	Sungai	Fiji	Point	Jarak	Sumber
1	Yangtze	China	333,000	310.000 nganti 480.000 jiwa.	Lebreton et al. 2017
2	Ganges	Bangladesh	115,000	105.000-172.000 taun kepungkur.	Lebreton et al. 2017
3	Xi	China	73,900	64,600 i 114,000	Lebreton et al. 2017
4	Huangpu	China	40,800	33,500 i 67,300	Lebreton et al. 2017
5	Cross	Nigeria	40,300	33,800 i 65,000	Lebreton et al. 2017
6	Brantas	Indonesia	38,900	32,300 i 63,700	Lebreton et al. 2017
7	Amazon	Brasil, Peru, Kolombia lan Ekuador	38,900	32,200 i 63,800	Lebreton et al. 2017
8	Pasig	Filipina	38,800	32,100 i 63,700	Lebreton et al. 2017
9	Irrawaddy	Мьянма	35,300	29.700-56.900 taun kapungkur.	Lebreton et al. 2017
10	Solo	Indonesia	32,500	26,500 i 54,100	Lebreton et al. 2017

Sakapeyan yakin angka-angka iki? Ora, lan penting kanggo ngomong kaya ngono. Both are models: nobody has weighed the plastic leaving a thousand river mouths. Jumlah total global Meijer sorangan ngawengku faktor langkung ti tilu, sareng para panulis nyatakeun yén modelna akurat dugi ka faktor sakitar sepuluh nalika dibandingkeun sareng pangukuran lapangan; Pasig aya di pinggiran band éta. Nanging, iki ora bisa dibédakaké saka jinis-jinis spésiés liyané. The Ganges drops from 115,000 tonnes a year in the older model to about 6,200 at its main mouth in the newer one, because the newer model gives plastic dropped far inland a much smaller chance of reaching the sea: much of it is caught on riverbanks, behind dams and in sediment along the way. Other rivers often named in public debate, such as the Chao Phraya in Bangkok, the Kelani in Colombo and the Mithi in Mumbai, also appear among the 50 largest emitters in the newer model’s published list. Sacara umum, aya tilu jinis cai: cai anu dihasilkeun ku taneuh, cai anu dihasilkeun ku cai laut, sareng cai anu dihasilkeun ku cai hujan.

Sungai kang teka manèh ing saindenging donya

Kadua, wangun-wangun ieu henteu dipikawanoh ku masarakat. Sungai-sungai anu dihapus geus dipulangkeun deui ka opat benua, di nagara-nagara kaya sarta miskin, dina pamaréntahan anu béda. Teu aya anu bisa dipisahkeun tina hiji karya sastra. Sacara umum, aya tilu jinis masalah anu dibahas dina kasus ieu: Naon anu salah, naon anu dilakukeun, naon anu diukur, sareng naon anu henteu kajawab. Kabéh ieu dilaksanakeun dina urutan anu sami, sakumaha dina gambar di luhur.

Thames, London

Apa yang salah. Saluran septic London sareng karya perawatan henteu tiasa ngadukung pertumbuhan kota. Dina taun 1950-an, oksigén anu aya dina bagian-bagian Thames anu disababkeun ku pasang surut jadi kirang, sarta dina taun 1957 éta dinyatakeun biologisna tilar dunya. Sacara umum, hujan anu turun dina mangsa usum panas, biasana dibarengan ku angin tiis.

What was done. A clean-up of the river’s sewage works began in 1960 (BBC, 2001). Taun 2014, Thames Water rampung ngamutahirkeun lima pabrik perawatan, di Beckton, Crossness, Riverside, Long Reach lan Mogden. Dina taun 2016, 7 km Lee Tunnel mimiti ngahasilkeun langkung ti 5 juta ton limbah per taun anu dipaké pikeun nyéépkeun tina overflow panggedéna. 25 km Thames Tideway Tunnel, hiji proyek £4.6 milyar anu dibayar ku rekening pelanggan Thames Water, ayeuna nyambung ka éta, supados sistemna tiasa nyimpen 1.6 juta méter pasagi cai limbah badai; éta parantos disambungkeun sacara lengkep sareng damel ti bulan Fébruari 2025, sareng diarepkeun bakal ngirangan cai anu ngaleupaskeun kana sungai pasang surut tina langkung ti lima puluh dina taun biasa dugi ka sakitar lima (Thames Water; Tideway).

What was measured. Salmon anu munggaran balik dina 1974, sarta ku 2001 sungai ngadukung 115 spesies iwak (BBC, 2001). Kaséhatan Zoological Society of London 2026 ditémbongkeun oksigén dilarutkeun naék dina jangka panjang ti taun 2007 ka 2024 sarta fosfor turun ti taun 1990-an; kuda laut, eel, seals jeung malah hiu leutik ayeuna hirup di estuary (ZSL, 2026).

Ora ana sing bisa diatasi. Kanyataanna, konsumsi nitrat masih naék ti limbah anu diolah, sareng turunna sakedik dina spesies iwak ti awal taun 1990-an anu peryogi panilitian langkung seueur. Upstream of the tunnel, Thames Water’s overflows and treatment works spilled sewage for 298,081 hours in 2024, up from 196,414 in 2023, according to an analysis of the company’s monitoring data (The Guardian, 2025). Di Inggris, cai anu asup turun ku 35% dina taun 2025, anu mana Badan Lingkungan nyarios yén éta utamana kusabab taun anu kering (Environment Agency, 2026).

Kutha krajané ya iku Cleveland, Ohio, Amérika Sarékat.

Apa kang salah. Tanggal 22 Juni 1969, hiji ledakan tina karéta api anu ngaliwatan ngahasilkeun minyak di Cuyahoga. It was not the first time: the local sewer district counts 13 fires on the river before 1969 (NEORSD). In the 1970s more than 9 billion gallons of combined sewage and rainwater a year overflowed from the area’s sewers into the river and Lake Erie (NEORSD).

What was done. Cleveland’s voters had already approved a 100 million dollar bond to clean up the city’s waterways, and the mayor took reporters to the river and testified to Congress (NPR, 2019). Ing taun 1972, Kongres nglampahi Clean Water Act, kang ndadèkaké ora sah kanggo ngeculaké polusi saka pipa menyang banyu AS tanpa ijin lan mbayar kanggo pabrik perawatan limbah anyar (Amerika Serikat). In 1987 the river was named a Great Lakes Area of Concern with nine official problems to fix. Saprak taun 2011, Proyék Danau Bersih di distrik sewer, program 3 milyar dolar, 25 taun anu satuju sareng regulator, parantos ngawangun terowongan sareng panyimpenan pikeun ngirangan aliran tina sakitar 4.5 milyar galon per taun ka 494 juta dina taun 2036 (NEORSD).

Apa sing diukur. Overflows wis setengah ing taun 2000. By December 2025, 76 of Project Clean Lake’s 78 projects were finished or under way, removing 2 billion gallons of overflow a year. Iwak balik deui: langkung ti 60 spesies ditémukeun dina sungai dugi ka taun 2014 (NEORSD). EPA wis mbusak lima saka pitung masalah resmi: penampilan ala (2017), watesan ing mangan iwak (2019), alga (2021), tumor iwak (2023) lan penutupan pantai (2024).Amerika Serikat).

Ora ana sing bisa diatasi. Aya opat masalah anu masih aya: populasi iwak sareng sato liar, kahirupan di dasar sungai, ngagedékeun saluran navigasi, sareng kaleungitan habitat iwak. Di tukangeun Bendungan Gorge, anu diwangun taun 1911, kira-kira 865.000 yards kubik taneuh anu kontaminasi bakal dibersihkeun ti taun 2025 sateuacan bendungan tiasa dileungitkeun (US EPA).

Kabupatèn Melbourne

Apa kang salah. Nalika taun 1897, banyu limbah Melbourne diangkut menyang pabrik perawatan ing Werribee, Yarra digambaraké minangka salah sawijining kali paling kotor ing donya.Melbourne Water). Nalika kota naék, pertanian, jalanan, jeung drainase hujan terus ngahasilkeun polusi.

Apa kang wis kelakon. Kacamatan ieu diwangun dina taun 1970-an, sarta kacamatan ieu dimekarkeun dina taun 1980-an. Dina taun 2017, Victoria ngaliwatan Yarra River Protection (Wilip-gin Birrarung murron) Act, hiji hukum anu ngrawat sungai salaku hiji entitas alami hirup sareng terintegrasi, sareng ngawangun Dewan Birrarung pikeun nyarankeun kana éta (Legislasi Victorian).

Apa kang diukur. Yarra dhuwur ngemot 70% saka banyu minum Melbourne.Melbourne Water). Since December 2013 the state environment agency has tested bacteria at four popular spots and publishes swimming forecasts for them (EPA Victoria).

Ora ana sing bisa diatasi. Kualitas cai masih kakurangan, sabab disababkeun ku pertanian, pangembangan kota, jeung hujan (Melbourne Water). Dua situs ramalan, Kew jeung Launching Place, salawasna diprediksi minangka tempat anu goréng pikeun renang (EPA Victoria).

Minamata Bay, Jepang

Apa kang salah. Sataun-taun pabrik kimia anu dioperasikeun ku perusahaan Chisso ngaleupaskeun metil merkuri, produk sampingan tina produksi asetaldehida, ka Teluk Minamata. Ikan téh bisa dikonsumsi ku manusa, sato, sarta ogé ku sato-sato séjén. Penyakit ieu diklasifikasikeun minangka panyakit serius taun 1956. Pabrik ngeureunkeun prosésna dina bulan Méi 1968, sarta pamaréntah ngakonfirmasi sababna dina bulan September (Kementerian Lingkungan Hidup Jepang).

Apa kang wis kelakon. Dina taun 1974, jaring dilarapkeun ka sakuliah teluk pikeun nyegah iwak anu kontaminasi ti ninggalkeunana. Ti taun 1977 dugi ka 1990, kira-kira 1.5 juta méter kubik taneuh anu ngandung langkung ti 25 bagian per juta merkuri ditarik sareng disegel kana 58 hektar tanah anu dipulihkeun. Biaya proyekna kira-kira 48 milyar yen, di mana Chisso mayar sakitar 30 milyar sareng pamaréntah nasional sareng prefektur masing-masing sakitar 9 milyar (sumber anu sami).

Apa kang diukur. Jumlah merkuri dina tujuh spesies iwak tetep di handapeun wates provisori pikeun tilu taun berturut-turut, sareng dina 1997 gubernur nyatakeun teluk aman sareng jaringna ditarik (sumber anu sami).

Ora dirampungake Teluk kasebut pulih sajrone puluhan taun; wong-wong ora. Dina bulan Désémber 2024, 3.000 jalma parantos resmi disertifikasi ku panyakit Minamata, kalebet anu ti wabah kadua di Niigata, sareng 304 diantarana masih hirup (National Institute for Minamata Disease). Kira-kira 11.000 jalma leuwih qualified pikeun relief dina raraga hiji panyelesaian politik dicapai dina taun 1995, leuwih ti 48.000 aplikasi dina raraga hukum relief dileupaskeun dina taun 2009 (Kementerian Lingkungan Hidup Jepang), sarta pengadilan masih ngarengsekeun klaim: dina taun 2023 hiji pengadilan Osaka nyatet sadaya 128 plaintiffs dina hiji kasus, sedengkeun dina taun 2024 hiji pengadilan Kumamoto ditolak 144 sabab wates waktu geus lumangsung (Asahi Shimbun, 2024).

Sungai Singapura

Apa kang salah. Dina taun 1970-an, Sungai Singapura jeung Basin Kallang pinuh ku sampah, cai limbah, sarta kapal anu ditinggalkeun. Kabéh barang-barang anu disimpen dina gudang, toko, kantor, sareng rumah sakit kedah disimpen dina tempat anu aman.

Apa kang wis kelakon. Tanggal 27 Februari 1977, Perdana Menteri Lee Kuan Yew netepkeun target sepuluh taun pikeun ngbersihan kali. Di sakuliah aliran kali jeung wewengkon Kallang Basin, rébuan kulawarga anu dipindahkeun, sarta 610 patani babi, kira-kira 500 patani bebek, leuwih ti 2.800 padagang tukang kebon, sarta kira-kira 5.000 pedagang jalanan dipindahkeun. 800 kapal kargo anu ngageter di sagara dipindahkeun ka Pasir Panjang taun 1983. The National Library Board nyebutkeun biayana kira-kira 300 juta dolar Singapura, tanpa ngitung kompensasi relokasi (National Library Board).

What was measured. By the time the campaign ended in 1987, fish and prawns were breeding in the river again (National Library Board). Diwangun taun 2008, bendungan Marina ngarobah muara kali kana waduk cai tawar taun 2010, kalayan kapadetan 10.000 hektar (PUB).

Teu dijawab deui. Kami teu tiasa mendakan rékor jangka panjang anu diterbitkeun ngeunaan kualitas cai sungai. Ing taun 2015, dhèwèké dadi salah siji saka lima wong kang dituduh dadi penyebar virus Zika.Diarsip saka sing asli ing 2015.).

Mersey iku désa ing Inggris.

What went wrong. Two centuries of industry and the sewage of millions of people made the Mersey one of the most polluted rivers in Europe, and in 1985 it was called the most polluted estuary in the United Kingdom (Mersey Basin Campaign). Ing taun 1970-an, sesambungan dawa ing kali dhuwur ora ana oksigen ing mangsa panas, ing saben kahanan pasang surut (2006-taun.).

What was done. The Mersey Basin Campaign ran for 25 years, from 1985 to 2010, bringing together government, the water company, industry and community groups (Mersey Basin Campaign). Pagawéan pangolahan anyar sarta dioptimalkeun sarta kontrol limbah industri diteruskeun: ku 2006 leuwih ti £1 milyar geus dipaké (Jones, 2006).

What was measured. The daily load of organic pollution (BOD) entering the estuary fell from more than 300 tonnes in 1972 to just over 50 tonnes in 2000 (Jones, 2000). The lowest oxygen recorded in the upper estuary rose to 48 percent of saturation in 2001, 58 percent in 2002 and 65 percent in 2003. Ing taun 2001, salmon ditangkap ing kali iki kanggo pisanan sawisé setengah abad, lan 26 ditangkap ing Woolston Weir ing mangsa semi taun 2002.2006-taun.).

Ora ana sing bisa diatasi. Dina usum panas, oksigén dina bagian tina Manchester Ship Canal anu salmon kedah ngalangkungan masih pisan miskin, sakitar 20%, anu nyababkeun iwak dina jalanna ka luhur (sumber anu sami). Para peneliti anu diajarkeun ka recovery estuary ogé nyatet kaget terus ngeunaan polutan lami ngaliwatan rantai pangan (Hawkins et al., 2020).

Boston

Apa kang salah. Dina taun 1990-an, kacamatan ieu digabungkeun sareng Kacamatan Cilacap Kidul, sarta kacamatan Cilacap Kulon diwangun. Ing taun 1987, 84 selang banyu limbah gabungan isih ngeculaké banyu limbah sing ora ditrapake lan banyu udan menyang pelabuhan lan kali-kali.MWRA).

Apa kang wis kelakon. 1985 - Pangadilan Tinggi Jakarta ngahukum pajabat pemerintahan RI anu dituduh ngalanggar hukum. Sludge dumping into the harbour stopped in 1991, a new treatment plant on Deer Island opened in stages from 1995, and in 2000 a 9.5-mile tunnel moved the treated outflow far out into the deep water of Massachusetts Bay (MWRA). Proyek Boston Harbor dibutuhake biaya $3.8 milyar (MWRA). Rencana sing beda saka udakara 906 yuta dolar ditutup 34 saka 84 overflows lan dirancang kanggo nyuda volume dibuwang ing taun biasa dening 88 persen (MWRA).

Apa kang diukur. Otoritas banyu ngontrol luwih saka 70 titik ing pelabuhan lan kali-kaliné lan nerbitaké data, lan nagara mriksa pantai saben mangsa panas (MWRA). The Charles River’s grade has risen from D to B or better since 2004 (MWRA), and in 2025 every metropolitan beach from Nahant to Nantasket scored above 80 percent for safe swimming, a first (Save the Harbor/Save the Bay, 2025).

Not solved yet. In a typical year the Charles River meets the bacteria standard for swimming only 48 percent of the time, and some overflows still miss their targets (MWRA, 2023). A draft updated overflow plan is open for public comment until 30 October 2026 (City of Somerville).

Rhine

Apa kang salah. Dina taun-taun saterusna, Jerman jadi salah sahiji nagara industri panggedéna di dunya. Dina tanggal 1 November 1986, hiji kebakaran di gudang Sandoz di deukeut Basel ngaleupaskeun nepi ka 30 ton pestisida kana sungai sarta maotna sato-sato kilométer.

Apa kang wis kelakon. Negara-negara ing saubengé kali iki njawab kanthi Program Aksi Rhine ing taun 1987: nyuda setengah saka 40 bahan kimia berbahaya sajrone sepuluh taun, lan nggawe kali cukup resik kanggo salmon kanggo bali (Komisi Internasional kanggo Perlindungan Rhine). Saliyané iku, pagawéan-pagawéan anyar uga diwiwiti ing sakiwa tengené bendungan-bendungan gedhé, kaya ta Iffezheim taun 2000 lan Gambsheim taun 2006.ICRP).

What was measured. Heavy metals in the river fell significantly between 1987 and 2000 (ICPR). Nitrogén kang diangkut déning Rhine menyang segara mudhun saka luwih saka 443.000 ton ing taun 1985 nganti kira-kira 272.000 ton ing taun 2016 (ICRP). Salmon mimiti berenang ti Laut Utara ka Sungai Sieg dina taun 1990 sarta geus ngaleupaskeun anak sacara alami ti taun 1994; ku sakitar taun 2000, 63 spesies iwak geus balik deui, jeung iwak ti Rhine, kajaba eel, aman pikeun dikonsumsi deui (ICPR, Salmon 2020). Komisi ieu ayeuna ngadaptarkeun 71 spesies, sareng unggal iwak anu dipikawanoh ti jaman baheula di sungai kecuali sturgeon Eropa (ICPR).

Not solved yet. Salmon masih kurang: iwak anu ngaliwatan Koblenz diitung 11, anu balik dewasa dina 2025 (ICPR counts). Sabudeureun dua per tilu nitrogen ayeuna datang ti pertanian sareng sumber difusi sanés, logam beurat tina sumber difusi masih teuing luhur, sareng pabrik perawatan henteu ngaleungitkeun seueur jejak ubar sareng mikropollutants séjén; nagara-nagara ieu milari ngirangan ieu ku sahenteuna 30 persen dina taun 2040 (ICPR).

Danube lan Laut Hitam

Apa kang salah. Sagara ieu mangrupa salah sahiji sagara panggedéna di Éropa, sarta ngawengku wewengkon Laut Hitam. From the early 1970s, water near the sea bed ran out of oxygen every year, and in 1983 the low-oxygen area covered about 20,000 square kilometres (Capet et al., 2013).

Apa kang wis kelakon. Ing taun 1994 nagara-nagara ing wewengkon iki ditandatangani Konvensi Perlindungan Kali Danube ing Sofia, lan wiwit taun 1998 padha kerja bareng liwat Komisi Internasional kanggo Perlindungan Sungai Danube, kanthi monitoring sing dipérang lan rencana banyu (ICPDR).

Apa kang diukur. Komisi kasebut nglaporake manawa emisi nitrogen ing waduk mudhun udakara 30 persen lan fosfor udakara 50 persen sajrone kira-kira 15 taun (ICPDR). Zona oksigen rendah Laut Hitam ngurangi, sanajan panalitèn rinci nemokaken manawa pemulihan ing pungkasan taun 1990-an luwih cilik tinimbang sing dikira wiwitan, lan utamané teka ing taun 2000-an (Diarsip saka sing asli ing 2013.).

Not solved yet. In the basin’s 2021 plan, only 24 percent of river length had good ecological status and 36 percent good chemical status, 624 barriers still blocked fish migration, the European sturgeon was extinct in the basin, and nutrient loads were still above those of the 1960s (ICPDR, 2021).

Kabupatèn Pasig, Indonésia

What went wrong. The Pasig carries the waste of a metropolitan area of more than 13 million people, and was declared biologically dead in the 1990s (GMA News, 2018). Éta ngahijikeun model anyar tina daftar sungai anu ngandung plastik ka laut, sanaos para panulisna nyatet yén model éta ngitung langkung ti Pasig dibandingkeun sareng pangukuran anu dilakukeun dina 2019 (Meijer et al., 2021).

What was done. From 1999 to 2019 the Pasig River Rehabilitation Commission cleared the banks and creeks. Dina taun 2018, nalika éta meunangkeun Asia RiverPrize munggaran, 18.719 kulawarga anu cicing di beulah wétan sagara parantos dipindahkeun sareng 17 tina 47 anak sungaina parantos dikembangkeun, mimitina kalayan pilot di Estero de Paco dina taun 2010 (GMA News). Dhèwèké dilantik ing taun 2019.Dijupuk 2019.). Since January 2024 a new programme, Pasig Bigyang Buhay Muli, has been building a riverside esplanade, whose fourth phase opened in October 2025 (ABS-CBN, 2025).

What was measured. Laporan komisiné dhewe nuduhaké yèn polusi organik (BOD) ing kali iki rata-rata 30.79 miligram saben liter saka 2009 nganti 2014, versus standar 7, lan mundhak saka 23.09 ing 2012 nganti 39.03 ing 2014; Oksigen rata-rata ngan 2.85 miligram per liter (PRRC, 2014). A 2018 state audit found that 96 percent of the funds for clearing waterways had been used, with between 1 and 28 percent of the planned work done (Rappler, 2018).

Ora dirampungake. Kami teu bisa manggihan pangukuran kualitas cai resmi ti sanggeus 2014, jadi urang henteu tiasa nyarios naha sungai ieu masih pulih ayeuna. Sacara umum, jalan tol bisa digolongkeun kana: Jalan tol anu henteu nganggo rel.

Cheonggyecheon, Seoul

Apa sing salah. Kali di tengah Seoul ditutupi ku beton lan jalan tol anu luhur.

What was done. Between 2003 and 2005 the city tore down the motorway and opened up 5.8 kilometres of stream, at a total cost of about 380 million US dollars (Landscape Architecture Foundation, 2011).

Apa kang diukur. Antara taun 2003 jeung 2008, jumlah spesies iwak naék ti 4 ka 25, burung ti 6 ka 36, serangga ti 15 ka 192 sarta tangkal ti 62 ka 308. Udara di sakuriling aliranna 3,3 dugi ka 5,9 °C langkung tiis tibatan di jalan paralel (Landscape Architecture Foundation), sarta dina taun 2025 para survéy ngarekam 33 spesies iwak, anu paling seueur ti saprak restorasi (The Korea Herald, 2025).

Not solved yet. Arus ieu diwangun ku manusa: leuwih ti 48,000 ton cai per dintenna dipompa ka jero, utamana cai anu diolah tina Sénétrohan Han plus cai taneuh, sarta biaya pangwangunanna sakitar 2.9 milyar won per taun (The Guardian, 2025). Dina taun 2011, bakteri coliform dina aliran diukur sababaraha kali standar pikeun renang (The Korea Herald, 2011).

Nagara ing India

Apa yang salah. Gangga suci kanggo ratusan jutaan jalma sareng sumber air pikeun bagian ageung India sareng Bangladesh. Dina jaman baheula, industri-industri sapertos pabrik gula jeung pabrik minyak bumi ogé ngahasilkeun limbah anu dibuang ka cai tawar kota-kota anu gancang tumuwuh.

What was done. India’s Namami Gange programme, started in 2014, is building and monitoring sewage treatment plants along the river and its tributaries (National Mission for Clean Ganga). Anggaranna nyaéta 20,000 crore rupee dugi Maret 2021 sareng 22,500 crore rupee pikeun tahap kadua dugi ka 2026. Dina Maret 2026, 21.340 crore rupees geus dipaké sarta 355 tina 524 proyék anu disatujuan réngsé (Press Information Bureau, 2026), sarta dina Maret 2025 pabrik perawatan anu tiasa ngadalikeun 3.446 juta liter cai limbah per dinten parantos dibangun atanapi dipulihkeun (Press Information Bureau, 2025).

What was measured. Bakteri fekal geus turun di situs-situs anu diawasi ku pamaréntah: jumlah rata-rata di Assi Ghat di Varanasi ti 2,500 per 100 milliliter dina 2014 ka 790 dina 2025, sarta di Gandhi Ghat di Patna ti 5,400 ka 2,200, salawan wates mandi tina 2,500 (Press Information Bureau, 2026).

Ora ana sing bisa diatasi. Dina taun 2025, standar mandi pikeun bakteri fékal ngan dilaksanakeun dina sababaraha daérah Uttar Pradesh, Bihar sareng Bengal Barat, sareng polusi organik anu luhur pisan ti Farrukhabad ka Kanpur sareng ti Mirzapur ka Ghazipur (sumber anu sami). Nalika festival Maha Kumbh taun 2025, laporan kahiji ti Central Pollution Control Board mendakan yén cai di situs anu diawasi henteu cocog pikeun mandi dina sababaraha kesempatan; laporan anu direvisi saatosna masihan médian dina wates (The Hindu, 2025).

Sungai-sungai ing Cina

What went wrong. Dina 2015 ngan 64.5 percent tina titik-titik pemantauan nasional Cina dina sungai sareng danau ngagaduhan cai anu Grade I dugi ka III, tingkat anu tiasa diolah pikeun nginum, sareng 8.8 percent langkung goréng tibatan Grade V, cocog pikeun hampir teu aya (Ministry of Environmental Protection, 2016). Dina bulan Maret 2013 langkung ti 16,000 dead pigs parantos ditarik tina Huangpu sareng anak sungaina di Shanghai, sumber cai tabung kota, saatos peternakan di luhureun ngaleupaskeun kadaharan kana sungai (The Guardian, 2013).

Apa kang wis kelakon. Ing wulan April 2015 Dewan Negara nerbitake Rencana Aksi kanggo Pencegahan lan Kontrol Pencemaran Air, dikenal minangka “Air Ten”, kanthi target kanggo taun 2020: luwih saka 70 persen banyu ing pitu kali utama ing tingkat III utawa luwih apik, pabrik cilik sing polusi ditutup, peternakan ternak pindah adoh saka banyu sensitif lan udakara 95 persen limbah kutha dirawat (State Council, 2015). Ti taun 2016, unggal kali jeung danau ditawarkeun “kepala kali”, pejabat anu ditugaskeun tanggung jawab pikeun caina sarta diaudit dina hasil (Kantor Umum Komite Pusat CPC sareng Dewan Negara, 2016; Hukum Pencegahan sareng Kontrol Polusi Air, Artikel 5). Dina taun 2018, 97.8 persen taman industri anu langkung ageung ngagaduhan perawatan cai limbah pusat kalayan pemantauan online, sareng dina taun 2019 kota-kota parantos bersihkeun 2.513 tina 2.899 awak cai perkotaan “hitam sareng bau” anu aranjeunna parantos diidentipikasi (Kementerian Ekologi sareng Lingkungan Hidup, 2018 lan 2019 bulletins). Hukum Perlindungan Sungai Yangtze, anu dilaksanakeun ti Maret 2021, ngalarang pabrik kimia anyar dina jarak hiji kilométer ti sungai sareng anak-anakna (Hukum Perlindungan Sungai Yangtze), sareng penangkapan komersial di Sungai Yangtze parantos dilarang salami sapuluh taun ti taun 2021, kalayan dukungan pikeun nelayan anu eureun (Xinhua, 2026).

What was measured. Ing 2025, 91.4 percent saka titik-titik pengawasan nasional ing Grade I nganti III lan 0.6 percent luwih ala tinimbang Grade V; Di wewengkon bagéan wétan, 98.9 persen tina 1,016 poin aya dina tingkat I dugi ka III (Ministry of Ecology and Environment, 2026). Jumlah porpoises tanpa fin Yangtze naék ti sakitar 1,249 dina survei taun 2022 ka 1,426, sareng 351 spesies iwak dicatat dina cekungan dina taun 2021 dugi ka 2025, 43 langkung ti sateuacan larangan memancing (Xinhua, 2026).

Not solved yet. Ing 2025, 28.4 persen saka danau lan waduk utama isih dipangan luwih akeh, lan kembang alga paling gedhe ing Taihu nutupi siji-lima saka danau; Fosfor tetep polutan utama dina aliran utama Yangtze (Ministry of Ecology and Environment, 2026). Kauntungan tina konsumsi cai anu diukur ku tingkat cai henteu ngawatesan plastik: larangan payun-hareup pikeun sababaraha plastik anu tiasa dianggo sakaligus mimiti taun 2020 (NDRC sareng Departemen Ekologi sareng Lingkungan, 2020), tapi urang henteu tiasa mendakan perkiraan pangukuran anyar ngeunaan plastik anu dibawa Yangtze ka laut. Jaringan monitoring ogé tumuwuh ti titik 967 di 2015 ka 3,641 ti 2021, janten angka awal sareng akhir henteu tiasa dibandingkeun.

Seine, Paris

Apa sing salah. Renang ing Seine dilarang taun 1923. Sacara umum, cai hujan dipaké pikeun ngabersihan taneuh, tapi dina sababaraha kasus, cai hujan ogé bisa dianggo pikeun ngabersihan jalan. Dina taun 1970-an, ngan ukur tilu spesies iwak anu ditémukeun dina sungai di sakuriling Paris (France 3 / AFP, 2025).

Apa kang wis kelakon. Ing taun 2015, panjenenganipun dipunangkat dados Présidhèn Déwan Menteri lan nglampahi langkung saking 1.4 milyar euro ing perbaikan saluran banyu, pabrik perawatan lan perbaikan 23.000 sambungan rumah tangga ingkang boten saé; salah satunggaling kolam panyimpenan ing Austerlitz piyambak gadhah 50.000 mèter kubik lan sampun damel wiwit wulan Mèi 2024 (Paris). Triathlon Olimpiade jeung maraton renang bakal dilaksanakeun dina sungai ieu taun 2024, sanajan hujan ngadorong ditunda (France 24, 2024).

What was measured. On 5 July 2025 three public bathing sites opened, at Bras Marie, Grenelle and Bercy (France 24, 2025). Dina 2026, aranjeunna nampik sakitar 120,000 bathers, 20 persen langkung ti dina 2025 (City of Paris, 2026). Antara 35 sareng 40 spesies iwak ayeuna hirup di Seine di sakuriling Paris, numutkeun otoritas sanitasi daérah, kalebet bullhead, anu parantos balik (France 3 / AFP).

Ora ana sing bisa diatasi. Hujan masih ngajadikeun septic anu lami ngaleuwihan, jadi situs-situsna ngan dibuka nalika arus, kualitas cai sareng cuaca ngamungkinkeun, sareng musim 2026 diaksés sateuacanna kusabab cuaca (Kota Paris). Invasive gobies are now among the most common fish caught (France 3 / AFP).

Apa sing padha karo pemulihan

Ing sisih kiwa, ana gambaré crita. Sacara umum, aya tilu jinis racun: racun kimiawi, racun biologis, jeung racun anu dihasilkeun ku manusa. Saterusna datang aturan jeung tanggal réngsé, ngaran jalma anu tanggung jawab, duit pikeun pipa sareng pabrik perawatan, sarta monitoring nu saha waé bisa mariksa. Ora ana sing bisa cepet. Thames nyandak langkung ti satengah abad, kampanye Mersey dijalankeun salami 25 taun, Rhine masih ngarepkeun salmon na janten seueur, sareng jalma anu diracun di Minamata masih peryogi dipikawanoh.

Teu satiap program geus gawé, sarta pangukuran nyebutkeun kitu kawas jelasna salaku maranéhna ngarekam kasuksésan. Tapi, nalika cai limbah dikumpulkeun sareng diolah, pabrik-pabrik kedah bersihkeun naon anu dibebaskeun, sungai ngajawab. Komunitas di sakuriling Pasig, Citarum jeung Gangga masih ngabuktikeunana deui ayeuna, hiji kali hiji leuweung.

Mengapa iki kedadeyan ing kene, lan kenapa ora masalah lokal

The Meijer study compares two rivers. The Ciliwung, kang ngliwati Jakarta, drainase 591 kilometer persegi, kurang saka setengah persen saka total wilayah. Rhine Basin ing Eropah Barat, lan basins iku ngasilaké kurang sampah plastik. Nanging Ciliwung diukur ngirimi bab 300 yuta. saka plastik taun menyang segara, lan Rhine bab 3 тон. Perbedaan nyaéta geografis sareng infrastruktur: di Ciliwung, rata-rata sampah anu dihasilkeun sakitar 1 kilométer ti sungai sareng 29 kilométer ti sagara, sareng hujan tropis ngaluarkeunana. Nanging, ora ana sing beda. Ing jaman saiki, kutha-kutha wis luwih maju tinimbang jaman biyen.

Alasan-alasane uga padha:

• Urbanisasi lan urbanisasi. Kota-kota di Asia Kidul jeung Tenggara, Afrika sarta Amérika Latin geus ngaronjatkeun ratusan juta jalma dina sababaraha dasawarsa, seringna di pamukiman informal di beulah leuweung jeung dataran banjir, dimana teu aya sampah, henteu aya pangumpulan, sareng henteu aya saluran cai.
• Kekurangan ing sistem pertahanan. Ngadugikeun jeung ngarawat limbah ngabutuhkeun duit anu kota-kota kalayan pendapatan pajak rendah susah manggihan, sarta jalma-jalma nu ngumpulkeunana, seringna tukang ngolah sampah informal, jarang dibayar pikeun plastik anu teu boga nilai jual deui.
• Produk-produk iki diprodhuksi ing Indonésia. Saku sahiji, bungkus multi-lapisan sareng kemasan murah dirancang sareng dijual ku perusahaan anu kantor pusatna sering jauh, ka tempat anu henteu aya cara pikeun didaur ulang.
• Padagangan sampah global. Salawasé puluhan taun, nagara-nagara kang luwih sugih ngirim sampah plastik menyang mancanegara kanggo “digunakake maneh”. Cina njupuk 45 percent saka sampah plastik sing didol ing donya saka 1992 nganti nglarang akeh impor ing 2018; nagara-nagara panghasilan tinggi diekspor ngeunaan 70 persen limbah plastik maranéhanana dina 2016 ka nagara-nagara panghasilan handap di Asia Timur jeung Pasifik, sarta ngeunaan 111 million tonnes bakal peryogi tujuan anyar ku 2030 (Brooks et al., 2018). Sacara umum, éta diwangun ku sababaraha leuweung anu ngaleuwihan satengahé sungai.

Saben planet, saben samudra

Sagara ieu henteu aya watesna, sarta ogé henteu aya laut. Sabuah botol anu ninggalkeun Teluk Manila bisa ngaliwatan arus laut ka sakuliah Pasifik; mikroplastik geus ditému ti es Arktik nepi ka taneuh panggedéna. Satiap nagara anu miboga kapal dagang, bisa ngajual barang-barangna ka sakumna nagara anu aya di sagara. Saperti kitu, urang tiasa ningali yén aya hiji alam semesta anu teu aya watesna.

Sungai Manila iku sawijining kali ing Filipina. Sakumaha anu dipikawanoh, sagara ieu aya dina wewengkon nu béda-béda.

Eropa ora bebas saka plastik

Kanyataanna, karusakan alam anu disababkeun ku manusa téh teu aya watesna. Ora ana. Sagara-saratna di Éropa ngandung plastik anu kirang kusabab puluhan taun investasi dina pangumpulan, tempat sampah sareng perawatan, tapi plastik masih tetep aya di sagara-saratanana sareng laut, sareng sababaraha limbah anu diekspor deui ka lautan di daérah sanés.

• The Mediterranean is a plastic trap. Ieu ngawengku kira-kira 1 persen tina cai laut dunya tapi ngeunaan 7 persen mikroplastik, sarta leuwih ti 200 juta pengunjung unggal taun ngangkat sampah laut ku sakitar 40 persen dina usum panas (WWF, 2018). Sapérangan jinis spésies kéwan kang urip ing banyu, kaya ta: Keong lan manuk, bisa urip ing banyu kanthi jumlah antarané 1000 nganti 3000 ton.Diarsip saka sing asli ing 2015.).
• Greece and its islands. A survey of 80 Greek beaches found that plastic made up 43 to 51 percent of the litter, and the most common items were cigarette butts, bottle caps, straws, bottles, food wrappers and bags; Greece recycles only about a fifth of the plastic it uses (WWF, 2018). Dina tilu pantai Corfu, rata-rata sakitar 142 new items per 100 metres diwatesan unggal 15 dinten, utamana dibawa ku laut (Prevenios et al., 2018). Di pulo-pulo Mediterania, sampah anu sumping ka pantai naék dugi ka 4.7 kali dina musim wisata (Grelaud and Ziveri, 2020).

• In the water and in the fish. In the Thermaic Gulf off Thessaloniki, researchers counted about 750,000 microplastic particles per square kilometre of sea surface and found microplastics in all seven fish species they tested (Kermenidou et al., 2023). Botol plastik anu ditarik ti dasar Laut Aegean sareng Ionian tetep henteu robih salami sakitar 15 years sateuacan aranjeunna mimiti rusak (Ioakeimidis et al., 2016).
• The great rivers of Europe. Rhine ngandung rata-rata sakitar 890,000 microplastic particles per square kilometre permukaan, kalayan puncakna 3.9 juta di sabudeureun kota-kota Rhine-Ruhr (Mani et al., 2015). Dina Danube Austria, plastik anu ngaleut langkung ti jumlah larva iwak anu ngaleut, sareng sungai diperkirakeun ngandung sakitar 4.2 tonnes of plastic a day ka Laut Hitam (Lechner et al., 2014).

Uni Éropa ayeuna ngalarang sababaraha barang plastik anu digunakeun sakaligus sarta meryogikeun para produsen pikeun mayar kanggo ngresiki anu sanésna dina Single-Use Plastics Directive. Iki minangka langkah sing apik. Tapi unggal pantai bersih di pulo Yunani nunjukkeun yén plastik, sakali dijieun, bakal tahan langkung lami tibatan sagala kabijakan.

Apa sing bener-bener kerja

Kabar anu saé nyaéta polusi cai mangrupikeun salah sahiji masalah anu parantos direngsekeun ku manusa, dina sababaraha tempat, seueur kali langkung ti kitu, sapertos anu ditunjukkeun ku sungai di luhur. Alat-alat kasebut dikenal:

1. Térapi cai limbah. Ngadugikeun sarta ngarawat cai limbah nyaéta cara pangwangunan kaséhatan masarakat anu paling efektif dina sajarah. Nalika wangunan-wangunan perawatan diwangun sarta dijaga, panyakit anu disababkeun ku cai bakal runtuh.

2. Kacamatan iki ora ana ing Pulo Jawa. Kauntungan tina pupuk organik nyaéta, bisa ngaronjatkeun produksi pangan, ngirangan biaya produksi, sarta ngaronjatkeun produktivitas pertanian.

3. Permit, monitor, publish. Industri dibebaskeun nalika ijin ditetepkeun watesan, monitoring terus-terusan lan hasilna umum. Transparansi dipaké sabab teu aya anu hoyong jadi nami dina peta.
4. Restore wetlands. Wetlands iku filter banyu planit, ngamanfaatkeun sedimen lan ngresiki nitrogen kanthi gratis.
5. Panyingkepan: Panyingkepan nyaéta cara ngajelaskeun kumaha hiji barang atawa jasa bisa dipaké ku masarakat.
6. Kumpulkeun saben bin, lan bayarkeun panyedhiya. Kabéh plastik kali dimimitian minangka sampah anu teu aya anu ngumpulkeun. Ngadaur ulang plastik anu dikumpulkeun sacara rutin dina tempat-tempat anu henteu resmi, sareng mayar pagawean anu adil pikeun pamilik sampah anu parantos ngahasilkeun seueur bahan daur ulang, nyababkeun plastik henteu dugi ka cai.
7. Catch it before the sea. Baris, jaring, sarta trap sampah di sungai-sungai perkotaan leutik jeung kanal bisa ngawatesan limbah anu apung caket tempatna asup. Éta henteu ngan ukur ngawengku wangunan, tapi ogé ngawengku rupa-rupa fasilitas anu bisa dipaké ku masarakat pikeun ngalaksanakeun kagiatan.

8. Make the makers responsible. Nalika para produsen mayar pikeun ngumpulkeun kemasan anu aranjeunna jual, sareng skema deposit-return mayar jalma pikeun ngajual deui, kemasan diwangun pikeun dianggo deui sareng didaur ulang tibatan pikeun sungai.
9. Industri, kajaba manufaktur. Kauntungan tina gawé bareng antara para ahli dina widang téknologi informasi sareng pamaké nyaéta bisa ngahasilkeun produk anu langkung saé, sarta tiasa dipaké pikeun ngalaksanakeun sagala rupa kagiatan.

Proyek sing bisa didukung

Pamarentahan ngaleupaskeun beban anu beurat dina carita di luhur, tapi aranjeunna henteu sorangan. Organisasi non-profit ngamangpaatkeun sampah di sungai sateuacan éta ngahontal laut, nguji cai dimana pejabat henteu, nyandak polutan ka pengadilan sareng ngarobih jutaan sukarelawan kana data. Sacara umum, sadaya karya sastra anu diterbitkeun ku pausahaan ieu. Anjeun tiasa ningali naon anu aranjeunna lakukeun, sareng upami anjeun tiasa, masihan ka aranjeunna langsung ngalangkungan situsna sorangan.

• The Ocean Cleanup (Netherlands). Saben jinis mesin ora bisa digawé tanpa plastik. Ing kali, iku tenaga surya Interceptors, barrières anu ngalayang sareng barges conveyor alit nyalametkeun sampah di sababaraha sungai sareng guling anu paling polusi, ti Kingston di Jamaika dugi ka Motagua di Guatemala, Los Angeles sareng Bangkok, sareng program “30 Kota” na tujuanna nyaéta 30 kota pesisir anu paling polusi. Di laut, System 03, hiji halangan anu ngaleut anu nyambungkeun plastik kana zona retention anu dikaluarkeun kana kapal sakitar unggal tilu dinten, parantos damel dina Great Pacific Garbage Patch ti taun 2023 sareng narik hampir 500.000 kg di dieu. Dashboard publikna ngitung kira-kira 65 juta kg anu disimpen ti sagara jeung lautan; organisasi kasebut nyebutkeun yén pangukuran otomatis ieu diverifikasi ku perusahaan independen DNV ngan ukur sakaligus (rivers, oceans, dashboard). Para ilmuwan uga ngrancang ranking kali sing dianggo ing situs iki. Dorongan ditujukeun ka Stichting The Ocean Cleanup, yayasan anu didaptarkeun pikeun kapentingan umum di Walanda, atanapi di AS ka American Friends of the Ocean Cleanup, hiji organisasi amal 501(c)(3) (FAQ).
• Panggonan (Inggris)https://www.mrtrashwheel.com/)** Baltimore, Amérika Sarékat. Four googly-eyed trash wheels, launched between 2014 and 2021, sit at the mouths of streams flowing into Baltimore’s harbour. Sacara umum, hiji spésiés sato anu hirup di jero cai, nyaéta sato anu hirup dina taneuh, sarta ngahasilkeun cai ku cara ngeusian taneuh ku cai. Kaliyan sami-sami padha nglumpukaken bab 500 US tons (kira-kira 450 ton) sampah sataun, kira-kira 90 persen tina éta diwaskeun ku badai hujan, sareng sukarelawan ngahitung sacara manual isi dumpster unggal taun pikeun ngabantosan nyatakeun hukum anti-litter. Dioperasikeun ku Waterfront Partnership of Baltimore, a 501(c)(3) non-profit; mesin-mesin ieu diwangun sarta dijaga ku Clearwater Mills, perusahaan Maryland (trash interception, how it works).

• Waterkeeper Alliance (New York, kerja ing saindenging dunya). Diwangun ku hiji kelompok nelayan Sungai Hudson anu ngalawan polutan industri ti taun 1966, aliansi ieu diadegkeun dina taun 1999 sareng ayeuna nyambungkeun 296 grup Waterkeeper lokal di langkung ti 40 nagara sareng daérah. Panjenenganipun nglampahi pagawéan ing babagan kaamanan, pertahanan, lan politik, lan dados salah satunggaling tokoh ingkang misuwur.bab).
• Ocean Conservancy (Washington, D.C.). Diantarana nyaéta: International Coastal Cleanup geus ngahasilkeun leuwih ti 19 juta sukarelawan ka pantai jeung jalan-jalan cai, anu geus ngumpulkeun leuwih ti 400 juta pon sampah, sarta éta ngarékam unggal item ngaliwatan aplikasi Clean Swell, jadi clean-ups ogé nyebutkeun produk nu réngsé dina cai.
• Surfrider Foundation (California, kalawan cabang ing saindenging Amérika Sarékat). Ireng Blue Water Task Force mbangun luwih saka 60 laboratorium sukarelawan kang nguji bakteri ing luwih saka 600 pantai, teluk lan kali, asring ana ing ngendi pengujian resmi diwiwiti nalika musim, lan nggunakake asil kanggo nyengkuyung panyegah (Blue Water Task Force).
• Thames21 (London). A registered charity (number 1103997) that brings thousands of volunteers each year to clean and restore London’s 400 miles of rivers and streams, the everyday work behind the Thames recovery described above.

Apa sing bisa sampeyan lakoni, lan carane melu

Sungai-sungai bersih diwangun ku pamaréntah, perusahaan cai, sarta patani, tapi ogé ku jutaan jalma anu ngalaksanakeun kagiatan sapopoé jeung sababaraha jam kerja sukarela. Di dieu, éta dipaké pikeun ngajaga dapur sareng kamar mandi. Nalika anjeun siap pikeun ngalakukeun langkung, halaman Local Solar System Yayasan Get Involved nyarankeun tugas lokal anu tiasa anjeun lakukeun di mana anjeun cicing, sareng cara pikeun ngareset atanapi ngamimitian chapter lokal. The proyek di ndhuwur welcome volunteers uga donasi. Apa wae sing sampeyan lakoni, critakake babagan iki liwat contribution board, dimana Dewan Yayasan ngrevisi saben kontribusi.

Dirumah

• Bin the fat. Biarkan lemak masak, minyak dan lemak dingin, lalu scrap ke dalam bin. They cause more than 20,000 sewer blockages a year on Thames Water’s network alone, 28 percent of all its blockages (Thames Water, 2025). Dina 2017 hiji “fatberg” lemak sarta wipes di handapeun Whitechapel di London tumuwuh dugi ka panjangna 250 méter jeung 130 ton (BBC, 2017).
• Flush only pee, poo and paper. Tisu basah nyababkeun 94 persen septic blockages di Inggris, sarta septic blocked hartina badai overflows kana sungai anu leuwih sering dianggo (Water UK; Bin the Wipe). Kajaba ti éta, produk-produk pangan, minuman, sarta bahan kimia ogé diproduksi di wewengkon ieu.

• Take unwanted medicines back. Jangan mencucinya atau buang: bawa ke apotek atau ambil kembali (NHS; US EPA). Studi kana 258 sungai di nagara 104 manggihan sahenteuna hiji ubar dina tingkat anu dianggap teu aman pikeun sato liar, atawa masalah resistensi antibiotik, di leuwih ti saperempat tempat anu disampel (Wilkinson et al., 2022).
• Ing sisih lor-kulon ana alas hujan. Ing kutha-kutha, banyu kang metu saka dalan langsung menyang kali paling cedhak tanpa dirawat (Pemerintah Inggris). Teu pernah tuang cat, minyak mesin atanapi cai sabun ti ngumbah mobil kana hiji; nyandak cat sareng minyak ka pusat daur ulang.
• Feed the garden, not the river. Ngagunakeun pupuk sareng pestisida anu kirang, ngan ukur jumlah anu disarankeun, jaga jauh tina kolam sareng aliran, sareng henteu pernah dilarapkeun sateuacan hujan (US EPA). Nalika dipaké dina wangunan, éta bisa ngandung bahan kimia anu ngabahayakeun ka lingkungan.

Dimana sampeyan manggon

• Ing ngisor iki ana sawetara conto. Hari Perbaikan Donya diwiwiti tanggal 20 September saben taun, lan para panggedhené nyebutaké yèn wong-wong saka 212 nagara lan wewengkon wis melu (Perserikatan Bangsa-Bangsa; Hari Kebersihan Dunia). Ocean Conservancy’s International Coastal Cleanup and the Marine Conservation Society’s Great British Beach Clean take place every September, and river groups such as Thames21 hold events all year. Rekaman naon anu anjeun pikahoyong, contona dina aplikasi gratis Clean Swell, supados pangbersihan ogé janten data (Ocean Conservancy).

• Jaga diri nalika ngalakukeunana. Nganggo sarung tangan atawa nganggo alat pikeun ngumpulkeun sampah, mimitina dina mangsa pasang surut atawa sababaraha jam sanggeus pasang surut, sarta ulah kantos seuri jarum suntik, drum atawa naon waé anu katingalina bahaya: tinggalkeun di mana ayana sarta laporkan éta. Sakumaha anu dipidangkeun ku Marine Conservation Society, lamun aya karagu-raguan, ulah angkat (MCS organiser guide, 2026).

• Kali iki ana ing Kabupatèn Ngawi. Program-program ilmu warga bakal méré anjeun kit, pelatihan, sarta tempat pikeun babagi hasil. FreshWater Watch, anu dijalankeun ku Earthwatch, parantos ngumpulkeun langkung ti 70.000 set pangukuran tina langkung ti 22.000 sukarelawan di sakumna dunya. The Rivers Trust’s Big River Watch takon wong ing Inggris lan Irlandia kanggo nonton kali 15 menit, dua kali taun, nganggo aplikasi gratis. The Riverfly Partnership ngalatih sukarelawan pikeun ngawatesan sato-sato leuweung anu sensitip kana polusi. The EarthEcho Water Challenge mantuan para muda ngates cai lokalna, Water Rangers nawakake kit tes lan platform data terbuka di Kanada, Waterwatch nyokong kelompok-kelompok di Australia, sarta Surfrider’s Blue Water Task Force nguji pantai di Amérika Sarékat.

• Ngalaporkeun polusi nalika anjeun ningali éta. Ikan maot, cai limbah, warna anu ngagempét, busa atanapi warna anu aneh: tingali tempatna sareng waktosna, angkat poto upami aman, sareng hubungi pamaréntah sakedik deui. Ing Inggris, garis insiden Environmental Agency ya iku 0800 80 70 60, dina lan wengi (UK government); Ing Skotlandia, SEPA njupuk laporan online utawa ing 0800 807060 (SEPA); Ing Irlandia, garis keluhan nasional yaiku 1800 365 123 lan mayoritas dewan nampa laporan liwat See it? Say it! app (EPA Ireland); di Amérika Sarékat, EPA boga formulir tip online, sarta kaayaan darurat kudu dilaporkeun ka National Response Center dina 1-800-424-8802 (US EPA); di Victoria, Australia, EPA Victoria ngajawab dina 1300 372 842 (EPA Victoria). Di mana waé, dewan lokal anjeun atanapi lembaga lingkungan nasional nyaéta tempat pikeun mimiti.
• Adopt a stream. Sajumlah tempat ngajalankeun skema dimana sakola, klub, atanapi kelompok tetangga ngajaga hiji bagian sungai atanapi pantai, sareng sacara rutin mariksa éta; Georgia Adopt-A-Stream di Amérika Sarikat mangrupikeun conto anu lami. Yen ora ana ing sekitar sampeyan, anjurake salah siji minangka tugas lokal.

Kanthi swaramu

• Takon data. Akeh sing wis umum. Di Inggris jeung Skotlandia, peta cai limbah The Rivers Trust ngagambarkeun unggal banjir badai sarta sabaraha sering éta ngalir (The Rivers Trust); di Éropa, European Environment Agency nerbitkeun hasil pikeun langkung ti 22.000 situs mandi, 85 persen tina aranjeunna dinilai saé dina taun 2025 (EEA); di Amérika Sarékat, EPA’s How’s My Waterway nunjukkeun kaayaan sungai sareng danau lokal. Nalika aya data, tanyakeun ka dewan anjeun atanapi utilitas cai naha henteu, sareng naon rencanana.
• Support deposit return and producer responsibility. Deposits bring bottles and cans back before they reach a river, sarta skéma pagawéan ngajadikeun para pembuat kemasan mayar pikeun pangumpulanna. plastik polusi explainer kita nuduhake carane apik iku bisa kerja.

• Investasi balik kana saluran cai sareng perawatan. Dina taun 2022, 42 persen cai limbah rumah tangga di dunya henteu dirawat sacara aman (PBB-Air, 2024). Satiap pangobatan dina halaman ieu dibayar ku duit publik, tagihan cai atanapi kaduana; nyarioskeun ka wakil anjeun yén anjeun ngadukung éta.
• Support farmers who protect water, sarta takon toko-toko ti mana asale pangan. Saurkeun ka merek anu anjeun mésér pikeun ngalaporkeun sabaraha plastik anu aranjeunna jual di tempat-tempat tanpa pengumpulan limbah, sareng naon anu dilakukeun pikeun ngahasilkeunana deui.

Nalika sampeyan lelungan

• Tinggalkeun nanaon. Ngangkut sampah ti pantai, kali, danau, utamana nalika teu aya pangumpulan anu rutin.
• Refill rather than buy. Nganggo botol anu bisa diisi deui sarta ulah nganggo kemasan jeung sachet; dimana cai tabung henteu aman pikeun diminum, ikuti nasehat kaséhatan lokal.
• Cek sateuacan mandi, nganggo tanda kualitas cai lokal atanapi ratings, sareng tetep di luar cai saatos hujan lebat di tempat-tempat anu aya aliran cai limbah.
• Panjenenganipun nyambut damel kanthi setya. Yen sampeyan pengin mbantu ing kali sing polusi ing luar negeri, maca pindhah, sinau lan bantu di bawah pertama.

Bagi idemu

Sacara umum, wangun-wangun anu dipikawanoh dina sajarah téh henteu sarua. Éta bakal direngsekeun ku rébuan ideu anu saé, diuji dimana jalma hirup: rute sampah anu langkung saé, toko refill, klub sakola anu ngukur aliranna, perangkap anu langkung murah pikeun kanal, harga anu langkung adil pikeun plastik anu dikumpulkeun. Ing sapérangan kasus, bisa uga ora ana.

Pindhah, sinau, lan bantu

Saben wong bisa nindakake apa wae sing dikarepake. Insinyur, perawat, guru, desainer, siswa, sareng pensiunan profesional tiasa nawiskeun kaahlian anu henteu sayogi, sareng ngabalikeun pangéling yén teu aya artikel anu tiasa ditawarkeun. Lamun anjeun tiasa nganjang ka salah sahiji sungai ieu, lakukeun éta salaku mitra, henteu salaku penyelamat.

• Ngamimitian ku ngadangukeun. Ngahubungan organisasi lokal, universitas, dewan kali sareng kantor kota sateuacan anjeun sumping, sareng tanyakeun naon anu aranjeunna peryogikeun. Sacara umum, masarakat ing wewengkon iki wis urip salila pirang-pirang abad.
• Pagawéan karo pamaréntah lan komunitas bareng. Pamulihan anu lestari butuh dua hal: pamaréntah lokal anu tiasa ngarobih rute pamustunganana sareng ijin, sareng warga anu mutuskeun naon anu dilebetkeun kana cai unggal dinten. Nanging, ora ana sing bisa ngrampungake masalah iki.

• Teukeun, sarta diajarkeun. Bagikeun naon anu anjeun terang ngeunaan monitoring, sanitasi, sistem limbah atanapi kaséhatan, sareng diajar kumaha hal-hal leres-leres jalan di dieu. Data iki bisa disimpen lan dianalisis, nanging ora bisa diundhuh.
• Tetep aman. Air sing polusi bisa nggawa penyakit lan bahan kimia. Ngalaksanakeun saran perjalanan pamaréntah anjeun, kéngingkeun vaksin anu dianjurkeun ku klinik perjalanan, henteu pernah renang atanapi inuman ti sungai-sungai ieu, sareng hormat kana hukum lokal sareng adat istiadat.
• Keep it honest. Yayasan Local Solar System ora ngorganisasi, sponsor utawa mbayar kanggo lelungan. Sagala anu digawé ku urang téh henteu pernah ditarima ku Allah, sarta teu pernah dipasihkeun ka urang.

Nalika anjeun balik, nyarioskeun ka kami naon anu anjeun diajarkeun ku cara ngalangkungan formulir di luhur, sareng pikirkeun ngamimitian chapter lokal supados karyana tetep dilaksanakeun dimana waé anjeun cicing ogé.

Sumber lan maca luwih lanjut

• Organisasi Kesehatan Donya, Drinking-water fact sheet (2023)
• UN-Water, Progress on wastewater treatment, 2024 update
• Diaz lan Rosenberg (2008), Spreading dead zones and consequences for marine ecosystems, Science 321
• Breitburg et al. (ed). (2018), Declining oxygen in the global ocean and coastal waters, Science 359
• AS EPA Nutrisi
• Air Kaluwihan banyu lan limbah
• Organisasi Kesehatan Donya, Sanitation fact sheet (2024)
• M. Al-Hakim et al. (2021), Luwih saka 1000 kali ngasilake 80% emisi plastik global ing segara., Science Advances 7; river data explorer lan file titik saka The Ocean Cleanup
• Lebreton et al. (2017), River plastic emissions to the world oceans, Nature Communications 8
• Schmidt, Krauth lan Wagner (2017), Export of plastic debris by rivers into the sea, Environmental Science and Technology 51
• B. lan al. (2018), The Chinese import ban and its impact on global plastic waste trade, Science Advances 4
• Human Rights Watch (2012), Toxic Tanneries: The health repercussions of Bangladesh’s Hazaribagh leather
• Marselina, Rahmi and Nurhayati (2025), The water quality of the Upper Citarum, Heliyon 11
• Dhèwèké dadi anggota National Mission for Clean Ganga. Program Namami Gange
• 2018 (ing basa Inggris). Luwih saka perangkap plastik: nglindhungi Mediterania saka polusi plastik
• Kutha krajané ya iku Al. (2015), Plastic accumulation in the Mediterranean Sea, PLOS ONE 10
• Prasasti iki digawé al. (2018), Beach litter dynamics on Mediterranean coasts: distinguishing sources and pathways, Marine Pollution Bulletin 129
• Grelaud lan Ziveri (2020), Penciptaan sampah laut ing pantai pulau Mediterania minangka efek pariwisata lan mitigasi, * Laporan Ilmiah * 10
• Kembangan lan al. (2023), Quantification and characterization of microplastics in the Thermaic Gulf, in the North Aegean Sea, Science of the Total Environment 892
• Ioakeimidis et al. (2016), Potensi degradasi botol PET ing lingkungan laut, * Laporan Ilmiah * 6
• Manéka warna. (2015), Microplastics profile along the Rhine River, Scientific Reports 5
• Lechner et al. (ed). (2014), The Danube so colourful: a potpourri of plastic litter outnumbers fish larvae in Europe’s second largest river, Environmental Pollution 188
• Uni Éropah, Direktif (EU) 2019/904 babagan nyuda dampak produk plastik tartamtu ing lingkungan
• Kamentrian Perlindungan Lingkungan Cina, 2015 Laporan babagan Kahanan Lingkungan ing Cina (2016, ing basa Inggris).
• Kamentrian Ekologi lan Lingkungan Hidup Cina, 2018 bulletin, 2019 bulletin and 2025 bulletin on the state of China’s ecology and environment (ing basa Cina)
• Dhèwèké dadi anggota Dewan Perwakilan Rakyat (2015). Plancongan kanggo nglindhungi lan ngendaliake polusi banyu (Ing basa Cina)
• Kantor Jenderal Komite Pusat CPC lan Kantor Jenderal Dewan Negara (2016), Opinions on fully implementing the river chief system (ing basa Cina)
• Hukum Pencegahan lan Kontrol Pencemaran Air Republik Rakyat Tiongkok (diperbaiki 2017)
• Hukum Perlindungan Sungai Yangtze saka Republik Rakyat Cina (2020, ditrapake 2021)
• Komisi Pembangunan lan Reformasi Nasional lan Departemen Ekologi lan Lingkungan (2020), Opinions on further strengthening the control of plastic pollution (ing basa Cina)
• Xinhua (2026), Yangtze finless porpoise population increases in China
• The Guardian (2013), Rivers of blood: the dead pigs rotting in China’s water supply
• Zoological Society of London (2026), The State of the Thames
• Tideway, London Tideway Tunnel lan Tentang Tideway
• International Commission for the Protection of the Rhine, The turning point: the Sandoz accident, Salmon 2000 and Salmon 2020 lan registrated adult salmon at counting stations.
• 2019 (ing basa Inggris). 50 taun sawisé, cuyahoga River kang dibakar diarani poster anak kanggo Clean Water Act.
• AS EPA Sejarah Perjanjian Baru lan Kabupatèn Cirebon Kabupatèn Cilacap
• National Library Board Singapore, Mouth of the Singapore River and Singapore River (historical overview)
• 2008 (Inggris) Kakawin Ramayana (disimpen)
• Robinson lan Hopton (2011), Cheonggyecheon Stream Restoration Project, Landscape Performance Series, Landscape Architecture Foundation
• Prancis 24 (2024), Women’s triathlon begins at Paris Games after tests confirm Seine water quality
• France 24 / AFP (2025), Seine reopens to Paris swimmers after century-long ban
• Kabupatèn Magelang Sejarah sistem sewer lan Boston Harbor, Kali lan Pantai
• The Ocean Cleanup, Sungai, Laut, Dashboard Impact lan FAQ
• Dhèwèké lair ing Baltimore, Maryland. Trash Wheel: interception sampah](https://www.mrtrashwheel.com/trash-interception) lan carane iku kerja
• Kabupatèn Waterford Ngendi kita
• Ocean Conservancy, International Coastal Cleanup
• Surfrider Foundation, Blue Water Task Force
• Thames21, Tentang kita
• BBC News (2001), A tale of two rivers
• Thames Water, Thames Tideway Tunnel
• The Guardian (2025), Thames Water data reveals raw sewage discharges in rivers rose 50% in 2024
• Environment Agency (2026), Fewer and shorter storm overflow spills in 2025, new monitoring data shows
• Northeast Ohio Regional Sewer District, History: wait, the Cuyahoga River burned how many times before 1969?, Combined sewer overflow control, Project Clean Lake and History: how a dying river saved our lives
• AS EPA, Cuyahoga Gorge Dam Great Lakes Legacy Act clean-up
• Ministry of the Environment of Japan, Lessons from Minamata Disease and Mercury Management in Japan
• Institut Nasional Penyakit Minamata, Pitakon lan Jawaban
• The Asahi Shimbun (2024), Court dismisses redress claims in closely watched Minamata case
• National Library Board Singapore, Clean-up of the Singapore River
• PUB, Singapore’s National Water Agency, Marina Barrage
• Galelli, Castelletti lan Goedbloed (2015), High-performance integrated control of water quality and quantity in urban water reservoirs, Water Resources Research 51
• Jones (2006), Water quality and fisheries in the Mersey estuary, England: a historical perspective, Marine Pollution Bulletin 53
• Jones (2000), [The Mersey estuary: back from the dead? 150 taun kapungkur.)http://www.merseybasin.org.uk/archive/assets/56/original/56_Jones_2000_Mersey_Estuary_back_from_the_dead.pdf)
• Mersey Basin Campaign, The legacy and The Mersey in six minutes (archive)
• Wong lan alam. (2020), Ing jaman biyèn, kutha iki dadi pusat industri lan perdagangan ing wewengkon pesisir., Marine Pollution Bulletin 156
• Massachusetts Water Resources Authority, Deer Island Treatment Plant, Combined sewer overflows and Joint public notice, Charles River (2023)
• Dhèwèké uga dadi panulis buku Save the Harbor/Save the Bay (2025), Pantai-pantai ing Boston dianggep salah siji pantai paling resik ing Amérika Sarékat.
• Kabupatèn Sumbawa Perencanaan overflow sewer gabungan
• Komisi Internasional kanggo Perlindungan Rhine, Kesinambungan ekologis, Sukses ing kualitas banyu, Nutrients, Iwak lan Mikroorganisme
• Capet, Beckers lan Grégoire (2013), Drivers, mechanisms and long-term variability of seasonal hypoxia on the Black Sea northwestern shelf, Biogeosciences 10
• International Commission for the Protection of the Danube River, Danube River Protection Convention, Nutrient pollution and Danube River Basin Management Plan, update 2021
• Melbourne Water, Yarra River
• Dhèwèké dadi anggota Parlemen (2017). 2017 - Perjanjian Perlindungan Sungai Yarra (Wilip-gin Birrarung murron) ditandatangani.
• Victoria Cara kita ngawasi kualitas banyu lan Kacepetan banyu
• GMA News (2018), Pasig River rehabilitation program feted in first Asia RiverPrize awards
• Philstar (2019), Duterte abolishes Pasig River Rehabilitation Commission
• ABS-CBN News (2025), Phase IV of Pasig River esplanade unveiled; situs dibuka kanggo umum wiwit Senin
• Kabupatèn Rembang Kabupatèn Rembang Laporan Tahunan 2014 (disimpen)
• Rappler (2018), Audit report on the Pasig River Rehabilitation Commission (disimpen)
• Landscape Architecture Foundation, Cheonggyecheon Stream Restoration, case study brief
• The Korea Herald (2025), Dua dasawarsa sawisé diwiwiti, Cheonggyecheon ing Seoul ngliwati 8 kali luwih akeh iwak, lan (2011), Cheonggyecheon stream in Seoul polluted with bacteria.
• The Guardian (2025), ‘Everyone thought it would cause gridlock’: the highway that Seoul turned into a stream
• Press Information Bureau, Government of India, Namami Gange (2026) and Namami Gange (2025)
• The Hindu (2025), Now CPCB tells green tribunal Maha Kumbh water fit for bathing
• City of Paris, Se baigner dans la Seine en 2024 et au-delà and Baignades à Paris 2026 (ing basa Prancis)
• Prancis 3, Paris Île-de-France / AFP (2025), Depollution: les espèces d’ivoire disparues retrouvent leur habitat dans le Seine (Ing basa Prancis)
• 1998 (Inggris) Carane perawatan banyu limbah kerja: dasar-dasar (arsip), lan (2004), Primer kanggo sistem perawatan banyu limbah kutha
• Thames Water (2025), 100-tonne Whitechapel fatberg discovered
• BBC News (2017-kanggo saiki). ‘Monster’ fatberg found blocking east London sewer (en) .
• Inggris Fighting fatbergs, lan Bin the Wipe
• NHS, How pharmacies can help; EPA AS, Household medication disposal
• Kebonsari dan al. (2022), Pharmaceutical pollution of the world’s rivers, PNAS 119
• Ing basa Inggris, pollution prevention for businesses lan report an environmental problem.
• EPA AS, Apa sing bisa sampeyan lakoni ing kebonmu lan laporake pelanggaran lingkungan
• PBB Hari Kebersihan Dunia; Hari Kebersihan Dunia
• Marine Conservation Society, Great British Beach Clean and Beachwatch organiser guide (2026)
• Kabupatèn Semarang Aplikasi Clean Swell; Thames21, Kegiatan
• Earthwatch, FreshWater Watch; The Rivers Trust, Big River Watch and Sewage in rivers; Riverfly Partnership; EarthEcho Water Challenge; Water Rangers; Waterwatch Australia; Georgia Adopt-A-Stream
• SEPA, Laporan peristiwa lingkungan; EPA Irlandia, Laporan lingkungan; EPA Victoria, Ngarep
• European Environment Agency, Kacepetan banyu; US EPA, How’s My Waterway