Polluter (noun)

A person, organization, or process that causes pollution.

Origin:

From pollute, from latin pollutus, past participle of polluere, 'to defile'.

Examples:

1. The polluter was fined for violating environmental regulations.
2. The polluter was accused of dumping toxic waste into the river.
3. The polluter was required to clean up the contaminated site and prevent future pollution.
4. The polluter was held responsible for the health problems caused by the pollution.
5. The polluter was criticized for failing to take steps to reduce its environmental impact.