| A | B |
|---|
| air pollution | Substance that can cause harm to living things end up on the air. |
| primary pollutant | A pollutant that is put directly into the air by human activity. |
| secondary pollutants | Formed when a primary pollutant comes into contact with other primary pollutants, or even with naturally occurring substances. |
| thermal inversion | the air above is warmer than the air below. |
| smog | When air pollution hangs over uban areas and reduces visibility. |
| sick-building syndrome | Buidlings with particularly. |
| radon gas | invisible, tasteless, and odorless, and it is also radioactive. |
| asbestos | name given to a combination of several fibers that contain silica and are valued for their strenght and resistance to heat. |
| acid precipitation | highly acidic precipitation (rain, sleet, or snow) that results from the burning of fossil fuels. |
| acid shock | The sudden influx of acidic water, which can be so intense that entire populations of fish are wiped out. |
| What is air pollutants | Solids, liquids, or gases. |
| What is emphysema | results when air sacs on the lungs lose their elastictiy and can no longer push air out of the lungs. |
| What causes emphysema | Air pollution has been linked to emphysema. |
| What is lung cancer | another respiratory disease that is linked to air pollution. |
| What causes lung cancer | cigarette smoking, automoblite exhaust and particulates. |
| What is the Clean Air Act | The Clean Air Act requires many industries to use scrubbers or other pollution-control devices. |
| What is Environmental Protection Agency (EPA) | the authority to regulate automobile emissions. |
| How is Ozone created | Ozone is created as a result of a chemical reaction involveing ultra violet rays from the sun, the emissions from cars, trucks, and natural sources, and the oxygen gas in the atmosphere. |
| What is Sulfur trioxide | pollutant that is formed in a chemical reaction between oxygen in the air and sulfur dioxide emitted from smokestacks. |
| What does PPM stands for | Parts Per Million. |
| Carbon monoxide (CO) | CO is an odorless, colorless, poisonous gas. It is produced by the incomplete burning of fossil fuels. |
| Nitrogen oxides (NOx) | When combustion (burning) temperatures exceed 538 celsius nitrogen and oxygen particles in the air combine to form nitrogen oxides. |
| Sulfur dioxide (SO2) | SO2 is produced by chemical interactions between sulfur and oxygen. |
| Volatile organic compounds (VOCs) | VOCs are organic chemicals that vaporize readily, producing toxic fumes. SOme examples are gasoline, benzne, toluene, and xylene. |
| Particulates | Particulates consist of smoke, ash, soot, dust, lead, and other particles from burning fuel. |
