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harmful chemicals released directly into the atmosphere...ex: SO2, NOx, CO2, CO, hydrocarbons, SPM |
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harmful chemicals that form from the reaction of other substances released into the atmosphere..ex: tropospheric ozone, sulfur dioxide |
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suspended particulate matter..ex: dust, asbestos, pollen |
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Main two gases in atmosphere |
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Nitrogen (78%), Oxygen (21%) |
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Layers in the atmosphere-in order-lowest to highest |
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troposphere, stratosphere, mesosphere, thermosphere, exosphere |
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gray-smog, more pollutants from industry |
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yellow/brown smog, smog formed with the reaction of a pollutant with UV rays, example...ground level ozone |
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nitrogen oxide (NO2-Nitrogen Dioxide) |
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good ozone-protects from UV rays |
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bad ozone- reactive- component of photochemical smog |
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why is rain naturally acid? |
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the reaction of carbon dioxide and water forms carbonic acid, which makes the rain slightly acidic. |
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List 3 problems of acid rain? |
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check your notes...there are many |
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electrostatic precipitators, scrubbers, fabric filters |
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technologies helping to remove particulate matter and harmful compounds from coal burning plants |
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health problems from acid deposition |
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respiratory issues, emphysema, bronchitis |
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layer of atmosphere where most UV rays are absorbed |
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shows temperature rate change in the troposphere |
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chloroflurocarbons, once used in aerosol cans, coolants in refrigerators air conditioners..one of the chemicals causing ozone depletion |
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multinational agreement to ban the use of CFCs, cutting back the impact of ozone depletion |
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Factors effecting regional acid deposition |
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industry location, local geology and wind/weather patterns. |
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Examples of indoor air pollutant |
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carbon monoxide, cigarette smoke, radon, formaldehyde |
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methane, benzene, gasoline, waxes (paraffin) |
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layer of cold air is trapped under warm air above and can cause a build up in air pollution (smog) |
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United States Clean Air Act |
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(Control Act in 1955, then clean air-in 1970,has been amended several times)- regulates -sets limits on on air pollutants. |
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Order of UV rays -most dangerous to least dangerous |
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Three primary pollutants that cause acid deposition (include source) |
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SO2: coal burning; CO2: combustion/burning fossil fuels; NOX: combustion-esp car exhaust |
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Name a primary pollutant that contributes to bad ozone formation. How? |
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NOx...car exhaust, NOx reacts with UV rays...end result...tropospheric O3 |
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