Here are some examples of point source pollution:

* Industrial wastewater discharge: Factories and manufacturing plants release pollutants into waterways through pipes.

* Sewage treatment plant discharge: Treated wastewater is released from sewage treatment plants into rivers, lakes, or oceans.

* Oil spills: Accidents involving oil tankers or offshore drilling rigs can release large amounts of oil into the environment.

* Leaking underground storage tanks: Tanks containing gasoline, oil, or other hazardous substances can leak into the soil and groundwater.

It's important to distinguish point source pollution from non-point source pollution, which comes from multiple, diffuse sources, such as agricultural runoff or urban stormwater.