| A | B |
|---|
| Layers of Atmosphere | trophosphere, stratosphere, mesosphere, thermosphere |
| Primary pollutants | emitted directly from source to atmosphere |
| Examples of Primary Pollutants | CO, CO2, NO, SO2,NO2 |
| Secondary Pollutant | When one or more primary pollutants react with one another or sunlight |
| Examples of Secondary Pollutants | SO3,HNO3, O3, H2SO4 |
| Ambient Air | Outdoor air |
| Natural Pollutants | dust, sulfur oxide from volcanoes, forest fires, methane from plants, salt, hydrocarbons from plants |
| Brown Smog | Photochemical Smog |
| Responsible for formation of ground O3 | N2 + O2 --- 2NO, 2NO +O2 --2NO2, some reacts with UV |
| Grey Smog | formed from SO2 |
| thermal inversion | layer of cold dense air trapped under warm air, traps pollution |
| Acid Rain | formed down wind from factories, between 5.5 and 5.1 pH |
| Damage to statues, paint, thin soil | caused by acid rain |
| Preventions of Acid Rain | Install scrubbers, remove sulfur from coal |
| Indoor air pollutants | cigarette smoke, asbestos, formadehyde, radon gas |
| Radon Gas | emitted from rocks under buildings |
| asbestos | tiny fibers for insulation |
| formaldehyde | fumes from drapery and furniture |
| Air pollution effects on humans | Bronchitis, asthma, lung cancer, emphysema |
| VOC volatile organic compounds | ex. benzene and formaldehyde |
| Clean Air Act | established levels of air pollution specifically SO2, NO |
