Download presentation
Presentation is loading. Please wait.
Published byShannon Spencer Modified over 8 years ago
1
4:57 AMFebruary 27, 2009Sanders Freshwater Pollution Unit 5: Water
2
4:57 AM July 10, 2016Unit 5: Water Homework Questions 1. Why is point pollution easier to clean than non-point pollution? 2. What are pathogens? 3. How do pathogens pollute water? 1. Why is point pollution easier to clean than non-point pollution? 2. What are pathogens? 3. How do pathogens pollute water?
3
4:57 AM July 10, 2016Unit 5: Water 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 Water pollution is the introduction of materials that degrade the quality of the water. Chemical Physical Biological Water pollution affects organisms. Drinking water Habitat
4
4:57 AM July 10, 2016Unit 5: Water Kinds of Pollution Pathogens: Disease causing organisms such as bacteria. Pollution occurs when sewage is untreated or enters water through storm sewers, and when animal feces wash off the land into water. Pathogens: Disease causing organisms such as bacteria. Pollution occurs when sewage is untreated or enters water through storm sewers, and when animal feces wash off the land into water.
5
4:57 AM July 10, 2016Unit 5: Water Kinds of Pollution Pesticides Fertilizers Plastics Pesticides Fertilizers Plastics Detergents Gasoline Oil Organic Matter: Biodegradable remains of animals and plants, including feces. These are primarily non-point sources. Organic Chemicals: Organic Matter: Biodegradable remains of animals and plants, including feces. These are primarily non-point sources. Organic Chemicals:
6
4:57 AM July 10, 2016Unit 5: Water Kinds of Pollution Inorganic Chemicals : Acids Salts Toxic metals Inorganic Chemicals : Acids Salts Toxic metals
7
4:57 AM July 10, 2016Unit 5: Water Kinds of Pollution Physical Agents: Heat and suspended solids. Radioactive waste: Power Plants or nuclear processing Physical Agents: Heat and suspended solids. Radioactive waste: Power Plants or nuclear processing
8
4:57 AM July 10, 2016Unit 5: Water Point Pollution Pollution that is discharged from a single point. See pollutants discharged into river. Pollution that is discharged from a single point. See pollutants discharged into river.
9
4:57 AM July 10, 2016Unit 5: Water Non - Point Pollution Non-point is pollution that comes from many sources rather form a single specific site. Homes Lawns Farms Highways
10
4:57 AM July 10, 2016Unit 5: Water Sources of Water Pollution 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 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 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
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.