The meaning of POLLUTANT is something that pollutes; especially : something (such as waste created by human acitivity) that makes an environment unsuitable or unsafe for use.

A pollutant or novel entity[1] is a substance or energy introduced into the environment that has undesired effect, or adversely affects the usefulness of a resource.

POLLUTANT meaning: a substance that makes land, water, air, etc., dirty and not safe or suitable to use something that causes pollution

POLLUTANT definition: 1. a substance that pollutes: 2. a substance that pollutes: 3. a harmful substance that causes…. Learn more.

Aug 28, 2025 · Therefore, a pollutant’s defining characteristic is its capacity to cause undesirable effects or harm when present in excessive amounts or in an unsuitable place. Pollutants are categorized …

Define pollutant. pollutant synonyms, pollutant pronunciation, pollutant translation, English dictionary definition of pollutant. n. Something that pollutes, especially a waste material that contaminates air, …

Definition of pollutant noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Ground-level ozone and particle pollution are two of these criteria pollutants. The other pollutants are carbon monoxide, lead, nitrogen oxides, and sulfur oxides. Learn about outdoor air quality data and …

Pollutants are substances that pollute the environment, especially gases from vehicles. Among pollutants from vehicles, lead from gasoline engines has attracted most attention. Children in strollers …

Pollutants with the strongest evidence for public health concern include particulate matter (PM), carbon monoxide (CO), ozone (O 3), nitrogen dioxide (NO 2) and sulfur dioxide (SO 2). Health problems can …