Air Pollutants

Primary

CO carbon monoxide

CO2 carbon dioxide

NO nitrous oxide

NO2 nitrate

SO2 sulfur dioxide

PM particulate matter

HC hydro-carbons

Secondary

• produced by reactions in the atmosphere

  • SO3
  • HNOs
  • H2SO4
  • H2O2
  • PAN’s
  • NO3, SO4 Salts

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