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®3.2.3 Aerosols
- Dust
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Terrestrial
-Volcanoes (Stratosphere)
- Soil-based dusts
- Industrial and Construction
- Extraterrestrial (predominate in outer atmosphere)
- Planetary accretion
- Meteoroids
- Hygroscopic (depend on relative humidity)
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Vegetation
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-Give off hydrocarbons, which oxidize or nucleate into complex tars and resins.
- Sea
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- Sea salt (injected by bursting bubbles)
- Concentration highly dependent on local wind velocity
- Combustion by-products
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- Undergo photochemical reactions to produce hygroscopic particles.
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