1. Types of Water Pollution
Science 1

2. Northfield Wastewater Treatment Plant Overflowing During Irene
Organic Waste
Description: sewage, cow poop, food processing, paper mills
Effects: bacteria grows which decreases dissolved oxygen and causes diseases
Raw sewage in Korea
Northfield Wastewater Treatment Plant Overflowing During Irene

3. Algae Bloom in Lake Champlain
Nutrients
Description: phosphates or nitrates from fertilizer or detergents
Effects: Algae blooms (eutrophication)
Algae Bloom in Lake Champlain

4. Deepwater Horizon Oil Spill (2010)
Description: Runoff from streets/parking lots; oil spills
Effects: Interferes with respiration/gills (fish) and flying (birds)
Deepwater Horizon Oil Spill (2010)

5. Acids Description: pH below 7 (acid rain, mining)
Effects: can kill organisms

6. Toxic Substances
Description: harmful in low concentrations (mercury, lead, cadmium, tritium)
Effects: can affect nervous systems of organisms

7. Heat (Thermal Pollution)
Description: hot water from power plants or factories
Effects: Lowers dissolved oxygen in water

8. Union St. and Pearl St. during Irene
Sediments
Description: can come from construction, logging, agriculture
Effects: blocks flow of water and can clog gills; can flood houses
Union St. and Pearl St. during Irene
Wall Street