| A | B |
| air pollution | When substances that can cause harm to living things end up in the air |
| primary pollutant | 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,and a chemical reaction takes place. |
| smog | Aidr pollution hangs over urban areas and reduces visibility |
| sick-building syndrome | building with particularly poor air quality. |
| asbestos | combination of several fibers that contain silicia and are valued for their strength and resistance to heat. |
| acid precipitation | is highly acidic precipitation fo fossil fuels. |
| acid shock | A sudden influx of acidic water |
| carbon dioxide | produced by the incomplete burning of fossil fuels. |
| Nitrogen oxides | Nitrogen and oxygen particles in the air combine to form nitogen oxides from combustion tempertures. |
| sulfer dioxide | is produced by chemical interactions between sulfur and oxygen |
| particulates | consist of smoke, ash, soot, dust, lead, and other particles from burning fuel. |
| EPA | Environmental Protection Agency |
| thermal inversion | the air above is warmer than the air below. |
| chronic bronchitis | persistant iflamation of lthe bronchial linings |
| bronchial asthma | a condiition in which the bronchial passages constrict and become blocked wiht mucus. |
| lung cancer | respiratory desease linked to air pollution and ciggrerette smoking. |
| radon gas | invisible, tasteless, and odorless, and it is radioactive. |
| ph # | is a measure of how acidic or a basic substance |
| volatile organci compounds | are organic chemicals that vaporize readily, producing toxic fumes. |
| emphysema | when air sacs in the lungs lose their elasticity and can no longer push air out their lungs. |
| sulferic acid | when oxides combine with water in the atmosphere |
| abestosis | desease where lungs are cut and scared. |
| natural pollutants | pollutants not man made but from mother nature |
| The Clean Air Act | strengthed EPA the authority to regulate automible emissions. |