Point source pollution is pollution that comes from one identifiable place, like a pipe, factory smokestack, drain, or sewage outfall. It is easier to trace and regulate than pollution that spreads out from many places, like runoff from farms or roads.

Quick Scoop

A simple way to think about it: if you can point to the exact source, it’s point source pollution. Common examples include wastewater treatment plants, factories, power plants, and some animal feeding operations.

Why it matters

Point source pollution can affect rivers, lakes, groundwater, air, and nearby ecosystems because the contaminants are released from a specific location. Since the source is known, governments can often control it with permits, limits, and treatment rules.

Example

If a factory discharges polluted water into a river through a pipe, that is point source pollution. If fertilizer washes off many different fields into a stream after rain, that is usually nonpoint source pollution instead.

Bottom line

Point source pollution = pollution from one clear, discrete source.