ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Primary & secondary particles
Definition:
Primary particles are directly released into the atmosphere by wind,
combustion processes, or human activities.
Secondary particles are those that form in the atmosphere from other gaseous
pollutants, particularly sulfur dioxide, nitrogen oxides, ammonia, and volatile
organic compounds.
Source & ©: GreenFacts
Related words: Particulate matter - Primary & Secondary pollutant To read about this term in context: GreenFacts Digest on Air PollutionParticulate Matter, Ozone, and Nitrogen Dioxide:
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