Презентація на тему "Soil pollution"

Soil pollution

Problem definition Soil contamination is the type of anthropogenic soil transformation in which the content of chemicals in soils that are subjected to anthropogenic influence exceeds the natural regional level of their content in soils.

The impact of a person As a result of the development of human economic activity occurs : In normal naturally, all processes occurring in the soil are equilibrium. But often in violating the equilibrium state of the wine man.

Polluties of soils One of the consequences of enhancing the industrial activity of a person is intensive soil contamination. The role of basic soil pollutants are:

Mercury pollution The most dangerous soil pollutants include mercury and its connection. Mercury enters the environment with poison chemicals, with waste of industrial enterprises containing metallic mercury and a variety of connections.

Pollution by lead An even more massive and dangerous nature is contamination of soils with lead. It is known that when smelting one ton of lead in the environment with a waste, it is thrown to 25 kg. Lead connection is used as additives to gasoline, so auto-transport is a serious source of lead pollution. Especially a lot of lead in soils along significant highways.

Contamination with metals Near large centers of black and non-ferrous metallurgy, soils are contaminated with iron, copper, zinc, manganese, nickel, aluminum and other metals. In many places, their concentration is tens of times higher than maximum permissible concentrations.

Pollution by radioactive substances Radioactive elemenes can fall into the soil and accumulate in it as a result of precipitation from nuclear explosions or when remote liquid and solid waste from industrial enterprises, nuclear power plants, NPPs or research-based foundations related to studying and using atomic the energy. Radioactive substances from soils fall into plants, then in organisms of animals and humans, accumulate in them.

Pollution of fertilizers. Especially dangerous stable organic compounds used as poochemicals. They are accumulated in the soil, in water, don deposits of reservoirs. But most importantly - they are included in environmental food chains, crosses from soil and water into plants, then in the animal, and ultimately fall with food in the human body.

There are three degrees of pollution that require the following actions:

Conducting desperate soil processing with storage storage on the surface of the field. Guard and rational use of soils Among the priority measures aimed at protecting land resources are allocated: Complex of works aimed at restoring performance and agricultural value of disturbed land. Conducting events that improve the passage of water into the soil and prevent its stomach. Systems of measures to increase soil fertility and obtain high and sustainable crops