Which term describes pollution discharged from a single identifiable source such as a pipe?

Which term describes pollution discharged from a single identifiable source such as a pipe?

• A. Point source pollution
• B. Non-point source pollution
• C. Watershed
• D. Runoff

Answer: (A)

Pollution that comes from a single, identifiable source, such as a pipe, is called point source pollution. This is useful to regulate because the discharge comes from a specific location that can be controlled or treated directly. In contrast, non-point source pollution results from many diffuse sources and is carried by runoff from broad areas like streets, fields, and rooftops, making it much harder to pinpoint and manage. A watershed is the geographic area that drains to a common outlet, which helps explain how pollutants travel through a landscape, but it’s about the land area, not the type of pollution source. Runoff describes the water flow that carries pollutants over the surface, yet it’s the movement process rather than the origin of the pollution.

Pollution that comes from a single, identifiable source, such as a pipe, is called point source pollution. This is useful to regulate because the discharge comes from a specific location that can be controlled or treated directly. In contrast, non-point source pollution results from many diffuse sources and is carried by runoff from broad areas like streets, fields, and rooftops, making it much harder to pinpoint and manage. A watershed is the geographic area that drains to a common outlet, which helps explain how pollutants travel through a landscape, but it’s about the land area, not the type of pollution source. Runoff describes the water flow that carries pollutants over the surface, yet it’s the movement process rather than the origin of the pollution.