Mon February 20, 2012 By:

What are Point Source Pollution and Non-Point Source pollution? Write 3 Difference between them and also write 2 examples each?

Expert Reply
Tue February 21, 2012
A point source of pollution is a single identifiable localized source of air, water, thermal, noise or light pollution. Example - industrial plants, commercial businesses and wastewater treatment plants
Non-point source of pollution refers to a pollution source without a single point of origin. Example - Urban or agricultural runoff, automobile emissions, road dirt and grit, and runoff from parking lots
  • The point source impurity enters the water resource at an easily identifiable, distinct location though a direct route, unlikie the nonpoint source.
  • Discharges from point sources of pollution often are continuous, and easier to identify and measure compared to NPS discharges.
  • Point sources are somewhat easier to control than nonpoint sources.
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