Combining hazardous substances with elements of the environment: air, land, and water.
The act of making dirty, or substances which make e.g. air or water impure.
The state of making impure or defiling.
The accumulation of harmful wastes or other harmful substances in the environment.
The introduction of toxins, radioactive materials, microorganisms, or other forms of waste into the environment.
Achieving a sexual climax through means other than sexual intercourse.