Definition, Meaning & Synonyms

pollutant

noun
/pəˈluːtənt/
Definition
A pollutant is a substance that contaminates an environment, causing harm or discomfort to living organisms.
Examples
  • Carbon monoxide is a common pollutant found in vehicle emissions.
  • Plastic waste is a serious pollutant in our oceans.
  • The factory was fined for releasing pollutants into the river.
Meaning
Pollutants can be natural or man-made and are typically unwanted additions to the air, water, or soil that have adverse effects on the health of living beings and the environment.
Synonyms
  • contaminant
  • impurity
  • hazard
  • toxin