POLLUTANS IN THE SOIL

The pollution of the soil consists of accumulation of substances to such levels that adversely affect the behaviour of soils.The pollution of the soil consists of accumulation of substances to such levels that adversely affect the behaviour of soils.

THE MOST COMMON CAUSES OF POLLUTION OF THE SOIL Harmful agricultural technology :use of sewage or water polluted rivers; indiscriminate use of hazardous pesticides and fertilizers in agriculture.Harmful agricultural technology :use of sewage or water polluted rivers; indiscriminate use of hazardous pesticides and fertilizers in agriculture.

THE MOST COMMON CAUSES OF POLLUTION OF THE SOIL Lack or improper use of systems of elimination of urban garbage.Lack or improper use of systems of elimination of urban garbage.

THE MOST COMMON CAUSES OF POLLUTION OF THE SOIL Industry contravene with systems of elimination of waste.Industry contravene with systems of elimination of waste.

POLLUTANS IN THE SOIL Generally the soil is contaminated when broken underground storage tanks, application of pesticides, sewage leaks in the cesspools, etc.Generally the soil is contaminated when broken underground storage tanks, application of pesticides, sewage leaks in the cesspools, etc.

POLLUTANS IN THE SOIL The most common chemicals include petroleum products, solvents, pesticides, and other heavy metals. This phenomenon is related to the degree of industrialization and intensity of the use of chemicals.The most common chemicals include petroleum products, solvents, pesticides, and other heavy metals. This phenomenon is related to the degree of industrialization and intensity of the use of chemicals.

POLLUTANS IN THE SOIL The risk is primarily on health, when it comes into contact with drinking water sources. The delimitation of the contaminated areas, and the resulting cleaning are tasks that consume time and money, requiring extensive skills.The risk is primarily on health, when it comes into contact with drinking water sources. The delimitation of the contaminated areas, and the resulting cleaning are tasks that consume time and money, requiring extensive skills.

POLLUTANS IN THE SOIL The main agents are: plastics, organic matter, solvents, pesticides:The main agents are: plastics, organic matter, solvents, pesticides: InsecticidesInsecticides HerbicidesHerbicides FungicidesFungicides Radioactive substances.Radioactive substances.

PESTICIDES The pesticides can be source of chemical synthesis, biological or natural products, which are designed to kill, repel, attract, regulate or stop the growth of living beings considered pests.

INSECTICIDES It is used to exterminate pests of insects. One of the most widely used insecticide was DDT.It is used to exterminate pests of insects. One of the most widely used insecticide was DDT.

DDT It is used to exterminate pests of insects. One of the most widely used insecticides was DDT (dichloro-diphenyl- trichloroethane).It is used to exterminate pests of insects. One of the most widely used insecticides was DDT (dichloro-diphenyl- trichloroethane).

HERBICIDES Type of chemical compound which destroys the vegetation, because it prevents the growth of plants or exert an action on the metabolism of the adult plant.

FUNGICIDES Are pesticides that are used in order to combat the development of the fungi. They contain chemical elements such as sulfur and copper.

MINING ACTIVITY The contamination appears by receiving quantities of waste containing toxic chemicals (in any physical state: solid, liquid, gaseous) incompatible with the ecological balance; or also non-biodegradable.The contamination appears by receiving quantities of waste containing toxic chemicals (in any physical state: solid, liquid, gaseous) incompatible with the ecological balance; or also non-biodegradable. radioactive material, radioactive material,

EVENTS Atomic tests, such as those made by the British in Australia, causing soil contamination that will last thousands of years. Atomic tests, such as those made by the British in Australia, causing soil contamination that will last thousands of years.

EVENTS Nuclear Accidents like Chernobyl show the massive pollution of soil, water and atmosphere, as a consequence of the lack of common sense and/or restrictive laws to the potential sources of pollution.Nuclear Accidents like Chernobyl show the massive pollution of soil, water and atmosphere, as a consequence of the lack of common sense and/or restrictive laws to the potential sources of pollution.

CONSEQUENCES Insecticides can be kept 10 years or more in the soil and do not decompose. It has been shown that the chlorine insecticides, as it is the case of DDT, are entered in the food chains and are concentrated in the fatty tissue of animals.Insecticides can be kept 10 years or more in the soil and do not decompose. It has been shown that the chlorine insecticides, as it is the case of DDT, are entered in the food chains and are concentrated in the fatty tissue of animals.

CONSEQUENCES Apart from the already mentioned effects, in a general way, there are other effects induced by a contaminated soil: landscape degradation, loss of value of the land, etc.Apart from the already mentioned effects, in a general way, there are other effects induced by a contaminated soil: landscape degradation, loss of value of the land, etc.