4:57 AMFebruary 27, 2009Sanders Freshwater Pollution Unit 5: Water

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?

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

4:57 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.

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:

4:57 AM July 10, 2016Unit 5: Water Kinds of Pollution  Inorganic Chemicals :  Acids  Salts  Toxic metals  Inorganic Chemicals :  Acids  Salts  Toxic metals

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

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.

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

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