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Pollutants are any substances that under excessive quantity in a wrong place and a wrong time will cause impurity to the living environment. Simply put, they're the things that cause pollution. Pollutants can be chemicals, ashes, sediment, organisms, heat, radiation, etc. which if exposed to the living environment will cause bad effects.

In this section we will discuss some of common pollutants exist today: the characteristics, uses and effects. Please click below to learn more:

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