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.

plural of nocturnal pollution

(obsolete) nocturnal emission

the presence of an undesirable sight that can ruin the aesthetic appeal of an area; the visually unattractive elements of a landscape.

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.

plural of self-polluter

One who self-pollutes.

simple past tense and past participle of self-pollute