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8.2 Air Pollution - Coggle Diagram
8.2 Air Pollution
Air Pollution
Natural Sources
Dust, wildfires,volcanoes, plants
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Human Sources
Industrialized areas
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Mobile Sources: cars, ships, planes
Primary Pollutants: emitted directly into the air from natural and human processes at concentrations high enough to cause harm
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Major Air Pollutants
Carbon Oxides
CO(highly toxic, incomplete combustion of hydrocarbons) and CO2 (climate change, burning of hydrocarbons)
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Acid Deposition
Burning coalcauses this
Emits SO2, suspended particles, Nox, forming H2SO4, nitric acid vapor, acid foirming sulfate and nitrate salts
Dry (fall to the ground) and Wet (acid rain, snow, fog, cloud vapor) deposition
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HArm
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Harmful metals sequesterd in rocks and soils get released into soil, then leach into drinking water and freshwater ecosystems
Calcium carbonate helps neutralize acids along with soil and lakes in limestone areas since it has a lot of CaCO3
Reduction of it
Preventive approaches to reduyce emissions, reduce burning of coal and gas powered vehicles
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Smog
Mostly made of SO2, suspended droplets of sulfuric acid, and particulates
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Photochemical smog
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Mix of O3, nitric aid, aldehydes, PANs, and S pollutants
Indoor Air Pollution
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Formaldehyde
carcinogen, used to make furniture and other products
Radon-222 gas
product of decay of uranium-238, 2nd biggest cause for lung cancer in USA
Atmosphere
Several greenhouse gases found in the troposphere, playing roles in Earth's weather and climate
Ozone
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Harmful at ground level, 1 of the major ingredients in photochemical smog
As a pollutant: can cause respirtatory problems, immunotoxic, dmg to plants