The alteration of the constituents of a body of water by man to such a degree that the water loses its value as a natural resource.

Pollution aquatique

introduction of harmful materials into a body of water.

waste matter or other material that is introduced into water and that is harmful to organisms that live in, drink, or are exposed to the water.  watershed -

The contamination of water bodies (e.g. lakes, rivers, oceans and groundwater).

Any alteration of the properties of water or the discharge of any pollutant into water which will or is likely to create a nuisance or to render the water harmful to public health, safety, or welfare; [..]

The addition of enough harmful or objectionable material to damage water quality.

Contamination of bodies of Water (such as Lakes; Rivers; SEAS; and Groundwater.)

Adverse effect upon bodies of Water (Lakes; Rivers; seas; Groundwater etc.) caused by Chemical Water Pollutants.

A general term signifying the introduction into water of micro-organisms, chemicals, wastes, or sewage which renders the water unfit for its intended use.

A general term signifying the introduction into water of micro-organisms, chemicals, wastes, or sewage which renders the water unfit for it's intended use.

The alteration of the constituents of a body of water by man to such a degree that the water loses its value as a natural resource.

degradation of a body of water by a substance or condition to such a degree that the water fails to meet specified standards or cannot be used for a specific purpose.

A general term signifying the introduction into water of micro-organisms, chemicals, wastes, or sewage which renders the water unfit for it’s intended use.

the act of making water impure or the state of water being impure.

degradation of a body of water by a substance or condition to such a degree that the water fails to meet specified standards or cannot be used for a specific purpose. water quality standards

the introduction into water of waste matter or chemicals that are harmful to organisms living in the water or to those that drink or are exposed to the water

The alteration of the constituents of a body of water by man to such a degree that the water loses its value as a natural resource.

Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater), usually as a result of human activities. Water pollution is one of many types of pollution [..]

Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater), usually as a result of human activities. Water pollution is one of many types of pollution [..]

Contamination of a liquid effluent which needs treatment before disposal