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Air Pollution

Environmental Science (Botkin, Keller) Chapter 21

TermDefinition
Acid Rain Precipitation in which the pH is below 5.6
Atmospheric Inversion Warmer air lies above cooler air, and there is little wind
Black Lung Disease Result of long exposure to very polluted air
Chimney (Stack) Effect Indoor/outdoor temperatures differ
CFCs Long residence time in atmosphere. Eventually reach the stratosphere, destroyed by solar ultraviolet radiation, and release chlorine. This depletes ozone in the stratosphere.
Global Dimming Gradual reduction in the solar energy that reaches Earth's surface
Mobile Sources Automobiles, trucks, buses, aircraft, ships, trains
Ozone (03) Triatomic form of oxygen in which tree atoms of oxygen are bonded
Ozone Shield Ozone layer in the stratosphere that absorbs most of the UV rays that enter the atmosphere
Photochemical Smog Directly related to automobile use
Primary Pollutants Emitted Directly into the air; particulates, sulfur dioxide, carbon monoxide, nitrogen oxides, and hydrocarbons
Scrubbing Removes sulfur before it enters the atmosphere
Secondary Pollutants Produced through reactions between primary pollutants and other atmospheric compounds; ozone
Sick Building Syndrome Symptoms people report can't be traced to any known cause
Stationary Sources Relatively fixed position and include point sources, area sources, and fugitive sources
Sulfurous Smog Burning coal or oil at large power plants
Ultraviolet (UV) Index Predicts UV intensity on a scale from 1 to 11
Ultrafine Particles Super tiny particles, released into air by vehicles on streets and freeways
Concentration of the stratosphere Declining since the 1970s, more ultraviolet radiation reaches lower atmosphere, can damage living things
Indoor Pollution Construction materials, furnishings, heating/cooling equipment
Radon Natural process, natural occurring radioactive gas that is a product of the radioactive decay chain from uranium to lead
Created by: tornquiste
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