Excess noise which is unpleasant or harmful.

(obsolete) nocturnal emission

plural of nocturnal pollution

(informal) Drunk.

contamination of water, especially surface water, by sewage effluent, fertilizer runoff, industrial chemical discharge etc.

An excess of artificial light, especially near urban areas, reducing visibility of stars, etc. in the night sky.

(derogatory) The uncontrolled flow of genes into wild populations, as from domestic, feral, and non-native species.

A system aimed at controlling pollution by allocating each firm a certain amount of pollution permits which allows them to pollute up to a certain limit. If firms pollute less, they are able to sell there permits to firms that pollute more hence creating a permits market.

Is a principle referring to the idea that firms responsible for causing pollution should be charged the full external costs for the damage that it inflicts on society.