There are two main classes of pollution: point source pollution and non-point source pollution. Point source pollution comes from specific, identifiable sources like factories, refineries, sewage treatment plants, and oil tankers. Non-point source pollution does not come from a single location and can result from things like litter, lawn fertilizers and pesticides, and agricultural runoff.

1. CLASSES OF POLLUTION
THOMAS P.J

2. CLASSES OF POLLUTION
• Point source pollution
• Non-point source pollution

3. Point source pollution
• Point source
pollution comes from
a definite source:
–Factories
–Refineries
–Municipal Facility
•Sewage
Treatment Plant
–Oil tankers

4. Non-Point Source Pollution
Pollution that
does not come
from a single
point or location.

5. Non Point Pollution Sources
Litter
Lawn
Fertilizers &
Pesticides
Agricultural Runoff