1. Air Pollution Ms. Morris

2. Overview  Air Pollution – Accumulation of substances in the atmosphere that can cause harmful health effects  “Smoke” + “Fog” = “Smog” Associated with urban settings and smokestack industries

3. Image: www.proto5.thinkquest.nl

4. Sources of Air Pollution  Primary Pollutants – Enter atmosphere directly Vehicle emissions  Secondary Pollutants – Form in the atmosphere after substance is released Hole in ozone layer

5. Sources of Air Pollution  Mobile Sources Passenger cars Trucks Busses Motorcycles Boats Aircrafts  Stationary Sources Oil Refineries Dry Cleaners Food Processing Plants Gas Stations

6. Air Pollution  Over half of the pollution is from mobile sources  Most serious toxic pollutants Asbestos Benzene Mercury Vinyl Chloride Radionuclides

7. Health Effects of Air Pollution  Respiratory illnesses  Stresses cardiovascular system forcing heart and lungs to work harder  Speeds up aging process of lungs  Damages cells in the airways

8.  Damages lungs after minor irritation systems disappear  Bronchial asthma  Neurological disorders – brain damage  Contributes to development of: Bronchitis Emphysema Cancer Health Effects of Air Pollution

9. Image: www.uh.edu

10. Not just humans!  Plants  Animals  Lakes  Streams Image: www.newsroom.ucr.edu

11. Questions  List four potential health impacts of air pollution.  Compare primary and secondary pollutants.  Name four serious toxic pollutants.  Turn in to Ms. Morris by the end of the day (10 Points).