1. Pollution & the Environment

7. Chemical Contaminants of Water: Naturally Ocurring

8. Industrial sources & human dwelling

9. Water treatment or materials in contact with drinking water

10. Cyanobacteria

14. Clever adverstising for clean waterways

16. 1963, Clean Air Act: The EPA (environmental protection agency) set out standards for what was to be considered “ criteria pollutants”. Several of these original pollutants were Carbon Monoxide, Sulfur Dioxide, lead, etc. As of 1970's there were two types of quality air standards set out by the EPA: primary standards: meant to protect human health secondary standards: aimed to protect welfare like crops, livestock, visibility, etc.

17. EPA discouraged Smoke Stacks as the stacks were spreading the smoke and causing acid rain. -acid rain is caused from sulfur dioxide reacting with water molecules and elevating hydrogen ion levels. -negative effects of plants and animals -diminishes the nutrient content in soil which results in less vegetation; affecting live stock -you may suffer asthma and lung problems over time. -Chicago's level of sulfer oxide is .015 parts per million, -highest rated city, Pittsburgh, which has near .025 ppm of sulfer oxide .

18. Chicago Tribune analysis of federal data: Cook County is ranked worst in the nation for dangerous air pollution, based on 2005 data Chicagoans face some of the highest risks in the nation for cancer, lung disease and other health problems (linked to toxic chemicals)

19. Chinese Ministry of Health says lung cancer is a leading cause of death due to air pollution from factories -Much of the pollution over Los Angeles originates in China, according to the Journal of Geophysical Research.

20. -U.S. vehicle emissions contribute 45% to global warming -Vehicle exhaust contributes to: -60% of carbon monoxide emissions(US) -95% in large cities -Every year 335,000 Americans die of lung cancer, which is a direct result of air pollution. Ways to cut down emissions: -Don’t buy products that come in aerosol spray cans -Carpool with friends and coworkers -Don’t smoke