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  1. Home
  2. Essential Climate Variables
  3. Precursors for Aerosols and Ozone

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Precursors for Aerosols and Ozone

Precursor species lead to the production of aerosols and ozone. Precursors include nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO) and formaldehyde (HCHO). Aerosols and ozone in the near-surface atmosphere can directly harm human health and produce detrimental environmental impacts (e.g., crop damage, acid rain). Reductions in near-surface aerosols and ozone have been observed in specific regions where the emissions of some precursors are regulated.
  Domain: Atmosphere
  Subdomain: Atmospheric Composition
  Scientific Area: Carbon Cycle and other GHGs
  ECV Steward: Dale Hurst, Paolo Laj
  ECV Product: NO2 tropospheric column; SO2; HCHO tropospheric columns; CO tropospheric column; CO tropospheric profile

 

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