Create an account
Innermost layer made of nitrogen & oxygen, a little water vapor & CO2. It's where weather takes place; 75%-80% mass of Earth's air.
90-1000 km above the Earth, high temperatures (900-3500F) in the upper Thermosphere, Northern & Southern lights.
Secondary air pollutants
Pollutants formed when primary pollutants react with each other or components of the air.
A highly toxic gas that forms during the incomplete combustion of carbon-containing materials.
Forms when nitrogen and oxygen gas in the air react at the high-combustion temperatures in automobile engines and coal-burning plants. Also form from lightening and certain soil bacteria.
Naturally occurring radioactive gas found in some types of soil and rock. (Second main cause of Cancer)
The presence of one or more chemicals in the atmosphere in sufficient quantities and duration to cause harm to humans and alter climate.
group of compounds that contain carbon, fluorine and chlorine that absorb infrared energy that destroys the ozone.
Organic chemical compund that have significant vapor pressures. Affect human and environment health.
Such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere.
Natural effect that releases heat in the atmosphere near the Earth's surface. Water vapor, carbon dioxide, ozone, & other gases in the troposphere absorb heat radiated by Earth's surface.
A mixture of air pollution formed by the reaction of Nitrogen oxides and volatile organic hydrocarbons under the influence of sunlight. (Brown Smog)
The falling of acids and acidforming compounds from the atmosphere to the Earth's surface. (Acid Rain)
The atmospheric condition in which warm air traps cooler air near Earth's surface
A mixture of sulfur dioxide, droplets of sulfuric acid, and a variety of suspended solid particles emitted mostly by burning coal. (Gray Smog)
Sick Building Syndrome
Headaches, allergies, burning eyes, chronic fatigue and other symptoms caused by poorly vented indoor air contaminated by toxins.
The lower part of the thermosphere, where electrically charged particles called ions are found.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together