The Caspian sea is an internal closed reservoir. Like many other water bodies, it is subject to significant anthropogenic pressures on ecological quality is influenced by many factors, both natural and human activities. Due to this, the Caspian sea, has a number of environmental problems, many of which are common to the seas of this type.

Sturgeon breeds are under threat of extinction. The reasons are many: construction of platinum on the rivers, water pollution, excessive impacts on ecosystems, changing the spawning grounds of unacceptably high overfishing and poaching. There is evidence of mass disease of sturgeon extrinsic diseases, the consequences of which are sagging and separation of the muscles, loss of taste

Oil rigs in the Caspian sea

Environmental problems of the Caspian sea are associated with water pollution caused by production and transportation of oil on the continental shelf, the contribution of pollution from the Volga and other rivers flowing into the Caspian sea, the livelihoods of coastal cities, as well as flooding of individual objects in connection with the level rise of the Caspian sea.

Phenols are common contaminants entering natural water from wastewater of oil refineries

Oil spills in the sea