Most contaminants enter the environment from industrial and commercial facilities; oil and chemical spills; non-point sources such as roads, parking lots, and storm drains; and wastewater treatment plants and sewage systems.

What is the contamination of the environment called?

Environmental pollution is defined as “the contamination of the physical and biological components of the earth/atmosphere system to such an extent that normal environmental processes are adversely affected.

Why our environment is contaminated?

The common sources of contaminants are fossil fuels, industries and industrial accidents, oil spills, mining, ammunitions and agents of war etc. The contaminants may be natural or xenobiotic (man-made) in nature.