Classification of environment contamination

Pollution of environment: entry of potentially dangerous components which destroy or reduce productivity of ecosystem.

Pollution is classified as natural and anthropogenic.

Natural pollution is caused by disasters (volcano eruption, mud and stone flow). Its rating doesn’t change significantly.

Anthropogenic pollution is localized near people activity and has stable spots of high concentration pollutants. It can be mechanical, physical, chemical and biological.

Mechanical pollution: with agents which can’t have physical or chemical reactions.

Physical pollution is divided into thermal (that changes temperature), light (that changes natural illumination, what in turn changes tempo of plants and animals), electromagnetic (that causes changes in biological tissues), radiation (that has ionizing effect).

Chemical pollution changes average concentration of any substance or entry of substances which had been naturally absent.

Biological pollution is appearing of extremely amount of microorganisms.

Chapter 2 - ENVIRONMENTAL PROTECTION