| Question | Answer |
|---|---|
| Sulfur Oxides | a major cause of acid rain, released naturally by volcanoes, anthropogenically by burning of coal |
| nitrous oxides | involved In the formation of O-Zone, can also cause acid rain, comes from the burning of fossil fuela?˜s and vehicle exhaust, appears as a reddish brown gas |
| tropospheric ozone | formed when NOx and VOCs react with sunlight, can cause respiratory issues, causes smog, eye irritation and lung damage |
| carbon monoxide | forms due to the incomplete combustion of fossil fuela?˜s, interferes with hemoglobina??s ability to carry oxygen |
| lead | comes from burning of fossil fuela?˜s and leaded fuela??s, once found in paints/plastics, can cause brain/kidney damage |
| carbon dioxide | sources includes volcanoes, vehicle exhaust, forest fires, burning of fossil fuela?˜s and respiration, increases greenhouse effect |
| VOCs (formaldehyde, etc.) | found in paint, perfumes, prefabricated wood products, glues; can cause respiratory problems and may lead to cancer |
| radon | naturally occurs in bed rock due to the breakdown of uranium, a gas that can get trapped indoors, can cause lung cancer |
| mold | occurs in presence of moisture, can cause respiratory issues |
| chlorofluorocarbons | used in refrigerants, depletes the stratospheric ozone layer, Montreal protocol banned their use |
| mercury | released by burning of fossil fuela?˜s, can contaminate water in fish, causes neurological damage |
| particulate matter (PM) | Sources include diesel engines, burning of fossil fuela??s and wind blowing dust, can cause lung damage, eye irritation reduced visibility |
| methane | can come from livestock omissions, very powerful greenhouse gas |