Industrial
-Foggy, cool weather
-Peaks in early morning
-Primary components: sulfur dioxide
particulate matter
-Gray pallor
-Immediate effects
-Primary by-product:
acid rain
Photochemical
-Hot, dry climates on sunny days
-Peaks at midday
-Primary compenent: ozone
-Dingy, brownish haze
-Lung cancer, chronic damages
-Primary by-products: ozone
carbon monoxide
peroxyacetyl nitrates (PAN)
-Require an atmospheric layer to push them to the ground
-Can kill
SMOG: Industrial vs. Photochemical
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