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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.
Basic Definition: Pollution is a negative/undesirable change in the environment, usually. the addition of something hazardous or detrimental. EPA Definition: The presence of a substance in the environment that because of its. chemical composition or quantity prevents the functioning of natural processes and.