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Air Pollution
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Environmental Pollution
EXPOSURE

Major Air Pollution Sources

Where Does Air Pollution Come From?

Correlating with the main natural and anthropogenic causes for air pollution, below is a table presenting the various sources of air pollution and their cause.

Main Air Pollution Causes and Sources

Air Pollution Cause Air Pollution Source
NATURAL  
Volcanic activities Magma and toxic gases
Winds and air currents Dust or dirt from bare areas of land
Methane formed through anaerobical (in the absence of oxygen) degradation of plant and animals
Wildfires Wood and other materials from soil
Microbial decaying processes Organic matter from living organisms and any chemical or biological material introduced in environment
Radioactive decay processes Earth’s crust materials which decay emitting radon gas
Increasing temperatures Volatile materials existent in nature (e.g., dissolved carbon dioxide from oceans and seas)
ANTHROPOGENIC  
Mining & Smelting
Mine tailing disposal
Natural mineralogical deposits
Foundry activity Raw metallic materials; natural mineralogical deposits
Industrial processes Raw materials used and manufactured products; also fossil fuels (e.g., petroleum) usually stored at the sites
Transportation Fossil fuels (e.g., gasoline, diesel and other petroleum products) used in combustion engines
Construction & Demolition Building materials including piping and paints
Coal Power Plants & Heating of Buildings Fossil fuels (e.g., petroleum products, coal)
Waste incineration Various waste chemicals incinerated
Landfill disposal practices Various types of wastes
Agriculture Pesticides/insecticides/herbicides sprayed
Controlled burning Wood and other burnt materials
Military activities Toxic gases; fuel for airplanes, helicopters, ships, rockets, etc.
Smoking Toxic gases and particulate matter from tobacco burning
Storage and use of household products Organic solvents (VOCs), Pb (from paints)
Dry cleaned clothes Chlorinated solvents (PCE) or petroleum solvents used by the dry cleaner