AP Environmental Science / Unit 8: Aquatic and Terrestrial Pollution
8.1 Sources of Pollution
Notes
- Point source: a single identifiable source (a factory pipe, sewage outfall).
- Nonpoint source: spread out, hard to trace (farm runoff, urban stormwater).
Practice
Runoff from many farms is:
Diffuse.
A factory discharge pipe is:
One identifiable location.
Nonpoint pollution is harder to control because:
Hard to pinpoint.
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