Community sources, such as households, hospitals, hotels, commercial buildings. The school Office. Wastewater from these locations are the pollutants are organic compounds which are scraps of waste and substances used detergent mingle.
Industrial sources like fish sauce sugar factory Canned food factory Mills Factory paint factory, industrial sources, mining and tanning, the release of waste into organic compounds into water, causing foul water also may release toxic metals and toxic compounds such as lead, cadmium and arsenic mercury cyanide into the water again.
Agricultural sources because farmers use fertilizer, pesticides and pest eradication of drugs is increasing. Fertilizer
Pesticides and pest eradication of drugs, as well as animal manure is washed with water flowing into an accumulation of water in a substance more. In the end, there will be more applications and acidification event occurs the accumulation. Toxic heavy metals in the water as it is harmful to plants and animals in the water.