Pollution sources which are diffuse and do not have a single point of origin or are not introduced into a receiving stream from a specific outlet. The pollutants are generally carried off the land by stormwater runoff. The commonly used categories for non-point sources are: agriculture. forestry, urban, mining, construction, dams and channels, land disposal, and saltwater intrusion.
NON-POINT SOURCE
Meaning of NON-POINT SOURCE in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012