Simple Description

A general name for a chemical or substance that contaminates the environment

Further Detail

For example, sulfur dioxide is a pollutant as it can form acid rain. Carbon dioxide is also considered a pollutant as it is a greenhouse gas. Unburnt carbon produced by incomplete combustion produces particulates, a pollutant that leads to global dimming.

Related Words:

• Greenhouse gas
• Carbon dioxide
• Acid rain

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