Diffuse water pollution us caused by various sources, which are often hard to identify. Individual sources maybe relatively small, but the combined effect is numerous sources can be damaging. Diffuse pollution has greater impact on the water environment than any other source of pollution

In rural areas, sources of diffuse water pollution include:
Run-off from agricultural land containing substances including pest control products, animal medicines, slutty, sewage sludge and manure run-off and leaching from contaminated land slit and dust from mining, quarrying, construction and demolition groundwater drainage discharging from discussed mines incorrect waste pipe connections

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