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Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem. Chemical pollution happens when certain compounds are improperly disposed of. This can affect the environment by disrupting the processes of the ecosystem.
Secondary pollutants. 1. Particulate matter formed from gaseous primary pollutants and compounds in photochemical smog, such as nitrogen dioxide. 2. Ground level ozone (0 3) formed from NO-, and VOCs. 3. Peroxyacetyl nitrate (PAN) similarly formed from N0 2 and VOCs.