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Air Pollution Ms. Morris
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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
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Image: www.proto5.thinkquest.nl
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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
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Sources of Air Pollution Mobile Sources Passenger cars Trucks Busses Motorcycles Boats Aircrafts Stationary Sources Oil Refineries Dry Cleaners Food Processing Plants Gas Stations
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Air Pollution Over half of the pollution is from mobile sources Most serious toxic pollutants Asbestos Benzene Mercury Vinyl Chloride Radionuclides
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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
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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
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Image: www.uh.edu
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Not just humans! Plants Animals Lakes Streams Image: www.newsroom.ucr.edu
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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).
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