hat
Dlo Ize se youn nan polyan ki pi toupatou, e anpil peyi ki gen anpil resif koray yo pa gen anpil tretman dlo egou. Pou egzanp, Azi Sidès, Pasifik la, ak ekoulman Karayib la 80-XNX% nan dlo ize yo trete nan lanmè a. ref Anplis de sa, pwodwi chimik toksik ki soti nan endistri (egzanp, min), akwakilti, ak agrikilti, osi byen ke kay, paking, jaden, ak gòlf lave nan ekosistèm bò lanmè. Plant tretman dlo ak plant pouvwa pouvwa egzeyat pwodui chimik nan zòn nan bò lanmè, siyifikativman chanje chimi nan dlo nan zòn sa yo.
eng
Sewage is one of the most widespread pollutants, and many countries with extensive coral reefs have little to no sewage treatment. For example, Southeast Asia, the Pacific, and the Caribbean discharge 80-90% of their wastewater untreated into the sea. ref Additionally, toxic chemicals from industries (e.g., mining), aquaculture, and agriculture, as well as households, parking lots, gardens, and golf courses wash into coastal ecosystems. Water treatment plants and power plants may also discharge chemicals into the coastal zone, significantly altering the water chemistry in these areas.