1. Freshwater Pollution
Unit 5: Water
February 27, 2009
Sanders

2. Water Pollution
Water pollution is the introduction of materials that degrade the quality of the water.
Chemical
Physical
Biological
Water pollution affects organisms.
Drinking water
Habitat
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Unit 5: Water

3. Kinds of Pollution Pathogens:
Disease causing organisms such as bacteria.
Pollution occurs when sewage is untreated or enters water through storm sewers
animal feces wash off the land into water.
December 25, 2018
Unit 5: Water

4. Kinds of Pollution Organic Matter:
Biodegradable remains of animals and plants, including feces. These are primarily non-point sources.
Organic Chemicals:
Detergents
Gasoline
Oil
Pesticides
Fertilizers
Plastics
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Unit 5: Water

5. Kinds of Pollution Inorganic Chemicals : Acids Salts Toxic metals
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Unit 5: Water

6. Kinds of Pollution Physical Agents: Radioactive waste:
Heat and suspended solids.
Radioactive waste:
Power Plants or nuclear processing
December 25, 2018
Unit 5: Water

7. Point Pollution Pollution that is discharged from a single point.
See pollutants discharged into river.
December 25, 2018
Unit 5: Water

8. Non - Point Pollution
Non-pollution is pollution that comes from many sources rather form a single specific site.
Homes
Lawns
Farms
Highways
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Unit 5: Water

9. Farm Run-off
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Unit 5: Water

10. Sources of Water Pollution
Point Pollution
23,000,000 septic-tank systems
190,000 storage lagoons
9000 municipal landfills
2 million gasoline tanks
1000s of public and industrial wastewater treatment
Non-Point Pollution
Highway construction
Storm-water runoff city
Oil, gasoline, dog feces
Pesticides from 112 million acres
50 million tons of fertilizer
10 million tons of salt
December 25, 2018
Unit 5: Water