What are the 5 major air pollutants?
336779
Carbon monoxide \nLead \nNitrogen dioxide \nOzone \nSulfur dioxide\nand also particles (eg dust).
863625
Oxygen, Carbon Dioxide, and Water
791714
Here are some sites that may help you:\nhttp://dir.yahoo.com/Society_and_Culture/Environment_and_Nature/Pollution/\nhttp://www.webdirectory.com/Pollution/\nhttp://www.answers.com/topic/pollution\nhttp://en.wikipedia.org/wiki/Pollution
413875
SMOG.\n\nSmog is a kind of air pollution - the name is a portmanteau of smoke and fog. Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulphur dioxide. In the 1950s a new type of smog, known as photochemical smog, was first described. This is a noxious mixture of air pollutants including the following:\n\nnitrogen oxides, such as nitrogen dioxide \ntropospheric ozone \nvolatile organic compounds (VOCs) \nperoxyacyl nitrates (PAN) \nAll of these chemicals are usually highly reactive and oxidizing. Due to this fact, photochemical smog is considered to be a problem of modern industrialization.\n\nPhotochemical smog is a concern in most major urban centres but, because it travels with the wind, it can affect sparsely populated areas as well. Smog is caused by a reaction between sunlight and emissions mainly from human activity. Photochemical smog is the chemical reaction of sunlight, nitrogen oxides (NOx) and volatile organic compounds (VOC's) in the atmosphere, which leaves airborne particles (called particulate matter) and ground-level ozone. Nitrogen oxides are released in the exhaust of fossil fuel-burning engines in cars, trucks, coal power plants, and industrial manufacturing factories. VOC's are vapors released from gasoline, paints, solvents, pesticides, and other chemicals.
530905
Pollution:\n\nhttp://www.ucar.edu/research/pollution/\n\nIf you want to compare pollution in various cities, just find out the zip code of the city you want to check out and enter it here:\n\nhttp://www.scorecard.org/\n\nFor the latest in what companies are doing to try to reduce how much pollution they're making, try here:\n\nhttp://www.pollutiononline.com/content/homepage/default.asp?VNETCOOKIE=NO\n\nGlobal Warming:EPA's official "all you need to know about global warming" site:\n\nhttp://yosemite.epa.gov/oar/globalwarming.nsf/content/index.html\n\nHere's a map of what's happening where because of global warming:\n\nhttp://www.climatehotmap.org/\n\nGlobal warming cause and effect:\n\nhttp://www.nrdc.org/globalWarming/default.asp\n\nWhat global warming is doing to our wildlife:\n\nhttp://www.nwf.org/globalwarming/
63596
Nuclear, Coal, Hydro, Aero, Gas
282122
A good site to get data is :\nhttp://www.cleanairworld.org/
48810
More than just particle concentration (as in smoke).  In some cases the pollutant is a toxic gas or a gaseous by product (such as carbon dioxide or sulfur oxides) which can react with the water in the air to produce mineral acids (leading to acid rain).
58416
carbon monoxide, fumes of amalgam, nicotine, sulphur, and many many more
479986
Carbon monoxide, sulfur dioxide, chlorofluorocarbons (CFCs) and nitrogen oxides produced by industry and motor vehicles are common air pollutants.
62789
On average it’s about 4,250 gallons of air per day. That equals something like 40 billion trillion molecules of oxygen. But the air brings with it roughly 20 billion particles of dirt and other foreign matter.  To get “per life” amount take 4,250 x 365 x life expectancy in years.
157399
The air pollution is the phenomenon when the unwanted, unrequired & harmful substances are added in our environment or in short in air.
628587
Pollution is:\n\n1. Undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities.\n2. Undesirable change in the physical, chemical, or biological characteristics of the air, water, or land that can harmfully affect the health, survival, or activities of human or other living organisms.\n3. Unwanted chemicals or other materials found in the air. Pollutants can harm health, the environment and property. Many air pollutants occur as gases or vapors, but some are very tiny solid particles: dust, smoke or soot.\n4. Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard. The usefulness of the natural resource is usually impaired by the presence of pollutants and contaminants.\n5. Harm to a natural environment, such as air, water, or soil through contamination with either natural or human-made materials. Such contamination may be deliberate, accidental, direct, or indirect. Throwing garbage into the lake, for example, makes the water unhealthy for fish and unfit for humans to swim. Indirect pollutants can enter our water supply from groundwater and runoff that contain agricultural fertilizers and pesticides or improperly disposed of industrial waste.\n6. Pollution which is (1) induced by natural processes, including precipitation, seepage, percolation, and runoff; (2) not traceable to any discrete or identifiable facility; and (3) controllable through the utilization of wise management practices.\n7. The undesirable presence of matter or energy that can cause harmful environmental effects.
605716
Photosynthesis, Respiration, Acid Rain, Carbon Cycle, Nitrogen Cycle, Ozone, Methanol, Carbonic Acid...\n\nThe sources listed are very good, some may be over your head, but, look them over.
932300
Methane\nsulfur dihydride\nchlorofluorocarbon
180843
Environmental pollution:\n=========================\nRelease of environmental contaminants, generally resulting from human activity. Carbon monoxide, sulfur dioxide , chlorofluorocarbons (CFCs) ,and nitrogen oxides produced by industry and motor vehicles are common air pollutants.\n\nSound Pollution:\n================================\nPresence of unwanted sound.\n\nThere are many other types of pollutions.
780338
Oxygen = O\nNitrogen = N\nCarbon Dioxide = CO2\n\nThey take up the space that is allowed them by the gravity and temperature of the planet, but oxygen and nitrogen form the main two constituents of the atmosphere.