In general, the optimal level of pollution to either prevent or to clean up occurs where the marginal benefit of preventing pollution equals the marginal cost of preventing pollution.
Pollution simply means the contamination, destruction, or physical degradation of an environment, especially through the littering of waste products (garbage) by humans or an emission of hazardous chemical compound (substances) by various industries.
Marginal cost can be defined as the additional amount of money that is paid by a business firm for the production of an additional unit of a good (product) or service.
Generally speaking, an optimal level of pollution to either prevent or clean up a physical environment typically occurs at the point where the marginal benefit (MB) of preventing pollution is equal to or the same as the marginal cost (MC) of preventing pollution.
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