Before revision: Other area sources of air pollution are: Multiple flue gas stacks within a single industrial plant Open burning and forest fires Evaporation losses from large spills of volatile liquids Water pollution Water pollution manifestations of an area source include: Surface runoff of fertilizer or pesticide from rainfall or irrigation water Widespread failure of septic fields Dispersal of an oil spill in a major water body
After revision: Other area sources of air pollution are: Multiple flue gas stacks within a single industrial plant Open burning and forest fires Evaporation losses from large spills of volatile liquids Water pollution Water pollution manifestations of an area source —often called nonpoint source pollution—include: Surface runoff of fertilizer or pesticide from rainfall or irrigation water Widespread failure of a septic drain field Dispersal of an oil spill in a water body.