Secondary pollutants are not directly emitted from a source but are formed in the atmosphere through chemical reactions involving primary pollutants and other atmospheric constituents. Smog, particularly photochemical smog, is a complex mixture containing secondary pollutants like ozone, peroxyacyl nitrates (PANs), and nitric acid, which are formed from reactions involving primary pollutants like nitrogen oxides (NOx) and volatile organic compounds (VOCs) under sunlight.
Which among the following is the secondary pollutant?
Asked in UPPCS Prelims 2018 · Topic: Pollution (Air Pollution: Types, sources, primary & secondary pollutants, smog, acid rain, effects, control technologies & policies.)
More Environment and Ecology questions
- A powerful eye irritant in the smoke is
- Which one of the following is the well known example of bioindicator of air pollution?
- Smog is essentially caused by the atmospheric presence of
- National Clean Air Programme has been launched by the Central Government in the year?
- The book 'Silent Spring' published in 1962 which set the tone for an environmental movement in the world, was written by
- 'Ringelmann scale' is used to measure density of
- Which of the following is indicator of air pollution?
- Flyash pollution is caused by