Sustainable Living: 3M FuturewiseTown PlanIntroductionGo BackEnd of section: Go to Town view3M

Secondary sources of air pollution

Secondary pollutants are not emitted directly. They form when primary pollutants interact with each
other in the atmosphere e.g. acidic gases combining with water, CFCs reaching strong sunlight.
Select the labelled examples of secondary air pollutants to find out more.

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