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AP Environmental air Pollution Flashcards

Chapter 15

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6360597443Air PollutionThe introduction of chemicals, particulate matter, or microorganisms into atmosphere0
6360597444Natural sources of air pollutionvolcanoes, dust storms, forest fires, lightening, and plants1
6360597445Primary pollutantsPM, Carbon monoxide, Carbon dioxide, Nitrogen oxide, sulfur dioxide, VOCs, lead2
6360597446Secondary pollutantsSulfuric acid, nitrogen dioxide and nitric acid, tropospheric ozone3
6360597447PMAny solid particles or liuid droplets that are small enough to stay suspended in air4
6360597448Sources of PMforest fire, combustion of coal, oil, ad diesel. Other construction that mobilize soil, soot, and dust5
6360597449Effects of PmCan get into respiratory system and aggrivate and damage it. The smaller the particulate the more harmful it is. Also reduces visibility and contributes to haze and smog6
6360597450Carbon monoxideComes from inomplete combustion of fuels. Gets into blood stream and impairs hemoglobins ability to carry oxygen and cells die7
6360597451Nitrogen OxidesFrom combustion in atmosphere. Irritates respiratory system and can aggravate asthma8
6360597452Sulfur dioxidefrom combustion of fuels containing sulfur like oil, gasoline, and coal. Respiratory irritant9
6360597453VOCsVarious natural molecules or formed by natural processes. Also produced by trees and shrubs in rural areas. Can cause cancer, immune system disorders, and blood disorders10
6360597454LeadLeaded gas and leaded paint, industrial processes. Can cause mental retardation, blindness and partial paralysis11
6360597455Sulfuric acidWhen SO2 reacts with atmosphere, component of acid rain12
6360597456Nitric AcidNitrogen oxide reacts with atmosphere and creates nitrogen dioxide and nitric acid13
6360597457Tropospheric ozoneWhen VOCs react with nitrogen oxides in atmosphere. Irritating to eyes nose and throat and weakens immune system. Part of photohemical smog14
6360597458Photochemical oxidantsFormed when sunlight acts upon Sulfur dioxide or Nitrogen oxides15
6360597459SmogMixture of oxidants and particulates16
6360597460Photochemical SmogVOCs and nitrogen oxides mix in sunlight and heat. Also known as brown smog or Los Angeles type Smog17
6360597461Sulfurous smogAlso known as gray smog or London-type smog. smog dominated by sulfur dioxide and sulfate compounds18
6360597462National Ambiant Air Quality StandardsSet limits on emmissions of common air pollutants. In 1990 it was amended to allow emissions trading where there was a maximum of SO2 emissions set and if factory goes below then they can sell pollution rights to another19
6360597463Ways to reduce air pollutionCatalytic converter, wet scrubber, and Electrostatic precipitation. However, they require use of more fuel so there is more CO2 emissions20
6360597464Catalytic ConverterReduces emissions of car exhaust by converting CO and NO emissions into non-toxic molecules21
6360597465Wet ScrubberDirty air enters and is sprayed with water vapor that traps the particulates of SO2 which is then mixed with crushed limestone and converted into sludge and taken to landfill22
6360597466Electrostatic precipitatorDirty air goes in and high voltage is applied to gas particles to make them charges. The charged particles are then attracted to electrons and collected and disposed of in landfill23
6360597467RadonRadioactive gas common in the decaying of uranium that is common in developed countries. Naturally present in certain rocks and soil and can leak into house. A carcinogen.24
6360597468AsbestosFibrous mineral which had been used for insulation, drywall, roofing, flooring, etc. No longer used but still present in old buildings. Can cause lung damage and mesothelioma25
6360597469FormaldehydeIt is a VOC found in new homes in wood panelings and carpets. It is a carcinogen26
6360597470CarpetingStyrene is a VOC present in new carpets, dust mites cause allergies, and bacteria from shoes can collect27
6360597471Sick building SynromeCaused by indoor air pollutants. Symptoms include diziness, nausea, headaches, fatigue, difficulty concentrating, and irritation of the skin, eyes, nose, and throat28

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