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the presence in or introduction into the air of a substance which has harmful or poisonous effects
Air Pollution
a substance that pollutes something, especially water or the atmosphere
Pollutants
produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere
Photochemical Smog
it was first used in the early 1900s to describe a mix of smoke and fog, the smoke usually came from burning coal
Smog
rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes
Acid Rain
defined as when Earth's atmosphere becomes thick with gases and substances which trap the sun's radiation, making the Earth warmer
Greenhouse Effect
the gradual thinning of Earth's ozone layer in the upper atmosphere caused by the release of chemical compounds
Ozone Depletion
a governmental agency that focuses on protecting the environment
EPA
Examples: volcanic eruptions, forest fires, pollen distribution, and wind erosion
Natural Causes of Pollution
Examples: factories, power plants, cars, airplanes, chemicals, fumes from spray cans, and methane gas from landfills
Human Causes of Pollution
the job of supervising or taking care of something
Stewardship
What does AQI stand for?
Air Quality Index
What does EPA stand for?
Environmental Protection Agency
What does green mean in an AQI?
Good Air Quality
What does maroon/burgundy color mean in the AQI?
Hazardous Air Quality
forms near ground level when air pollutants react chemically in the presence of sunlight
Bad Ozone
