Sources of Pollutants

Flashcards covering the definitions and examples of point and nonpoint sources of pollution, as well as the distinction between pollutants and pollution.

Point Source

A single, identifiable source of a pollutant, such as a smokestack or waste discharge pipe.

Nonpoint Source

Diffused sources of pollution that are difficult to identify, such as pesticide spraying or urban runoff.

Examples of Point Sources

Animal waste runoff from a CAFO, emissions from the smokestack of a coal power plant, and the BP Oil Spill.

Examples of Nonpoint Sources

Urban runoff, pesticides sprayed on agricultural fields, and runoff from multiple locations contributing to pollution.

Pollutants vs. Pollution

Pollutants are specific substances harmful to the environment, while pollution is a vague term for any harmful substance.

Essential Knowledge STB-3.A.1

A point source refers to a single, identifiable source of a pollutant.

Essential Knowledge STB-3.A.2

Nonpoint sources of pollution are diffused and can be difficult to identify.

Must-Know Pollution Categories

Thermal pollution, noise pollution, and sediment pollution.