Definition - What does Pollution mean?
Pollution is the introduction of contaminants into the natural world whether it is into the air, water or on land. Contaminants can include a wide range of substances, but in order to be classified as pollution, these substances must be harmful. Pollution affects the health and safety of people, as a result of harming the environment. Air pollution, for example, can cause breathing problems in people regularly exposed to it.
Safeopedia explains Pollution
Pollution includes processes like the release of untreated wastewater into a river system, or the introduction of sulphur gasses into the air. Pollution should be prevented wherever possible, which includes construction sites. Litter should be properly disposed of to ensure it does not land in waters or other natural areas. All potential contaminants in run-off and as effluent should be properly treated and released safely. This ensures the safety of the workers, and the general public who should not come into contact with contaminants not properly disposed of.