What type of pollution originates from a specific site?

The correct answer is point-source pollution, which refers to pollution that can be traced back to a single, identifiable source or location. This could include discharges from wastewater treatment plants, industrial facilities, or sewage outfalls that release pollutants directly into a body of water. Because point-source pollution is linked to a specific source, it can be monitored and regulated more effectively than pollution that stems from diffuse or non-point sources.

In contrast, non-point source pollution arises from multiple, often scattered, sources and does not have a specific origin. It may include runoff from agricultural fields, urban areas, or other land uses that contribute various pollutants into a water body, making it more challenging to control and remedy.

Diffuse pollution is not a widely recognized term in environmental science; however, it sometimes refers to similar concepts as non-point source pollution due to its lack of a singular origin.

Environmental pollution is a broad term that encompasses all types of pollution, including point-source and non-point source, and therefore does not specifically identify the origin of pollution.