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Acid Rain (Acid Precipitation)
precipitation such as rain, sleet, or snow that contains a high concentration of acids
when harmful substances build up in the air to unhealthy levels, air pollutants can be solids, liquids, or gases
form when a primary pollutant comes into contact with other primary pollutants or with naturally occurring substances and a chemical reaction takes place
Short term effects of air pollution
headache, nausea, irritation to the eyes, nose and throat, tightness in the chest, coughing, upper respiratory infections, may worsen asthma and emphysema
Long term effects of air pollution
Emphysema, lung cancer, heart disease, may damage lungs of children
includes several minerals that form in long, thin fibers and are valued for their strength & resistance to heat
-affects human health and quality of life
-airplanes, city traffic, home appliances etc.
-heath problems include loss of hearing, high blood pressure, stress, loss of sleep
-Inefficient lighting leads to energy waste
-fix:billboards lit from about shooting down
Why is smog so common in LA?
Warm and sunny= great environment for trapping and forming air pollutants. Built in a valley surrounded by mountains. Air is trapped off by this natural bowl. When the air higher up is warmer than the air closer to the ground, the warm air acts as a lid that keeps pollutants in.
Canada-U.S. Air Quality Agreement
(pollutants released in US end up in Canada)
-acid rain that falls in southeastern Canada often comes from pollution produced in US
-both countries agreed to reduce acidic emissions that flowed across the Canada-US boundary
Acid Rain Effects
-Toxic metals (Al+Hg) released into environment (poison to humans)
-lead to increase in respiratory problems in children
-decrease in fish number
-can dissolve calcium carbonate in building materials
Most polluted cities in the WORLD
Ulan Bator, Mongolia
Sources of pollution (man made & natural)
household products, power plants, motor vehicles (CO, NO, VOCs)
coal burning power plants
Particulate Matter-vehicles, incinerators, power plants, mining, wood-burning fireplaces
natural pollution (volcano)
Asbestos, Radon, & Ozone- causes & effects
Radon gas- lung cancer
Asbestos-damage lungs cause trouble breathing
ID as primary or secondary pollutant
Ground level Ozone
acid rain- secondary
Ground Level Ozone- secondary
How does acid rain form, where does it come from? Causes? (in a diagram)
Most Air polluted city in the world & country (top 3)?
world- Ahwaz, Iran
US-1.) Bakersfield, Calif
2.) Fresno, Calif
3.) Riverside, Calif
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