polluter

noun

1. A subject that pollutes, be it a person, company, country, factory or another subject.

   “During the last session of Parliament a Rivers' Pollution Prevention Act was passed, after it had been carefully divested of most of the provisions which could make it objectionable to polluters.”

   “The Environmental Protection Agency said it gets stuck with the bills because it often can't locate polluters or they are out of business or bankrupt.”

   “Goodbye from the world's biggest polluter.”