Definition
Pollution from widely distributed sources instead of from a discrete or definable point.
Synonym
Diffuse source pollution
Description
Pollution from activities that take place over a wide area (e.g. herbicides and pesticides from farming).
Why is non-point source pollution important?
Pollution associated with non-point sources impacts a large area, are often difficult to delineate and therefore requires a different approach to identify and manage to that for point source pollution.
Source: http://pubs.caes.uga.edu