Study of Metal Contaminated Soil on Various part of Planet Earth

This is the authors' abstract. We don't add key points for this paper.

Exposure to toxic heavy metals is associated with many chronic diseases and can cause a wide variety of health problems.Urban soils receive varying inputs of heavy metals from a variety of mobile or stationary sources such as vehicular traffic, industrial power generation facilities, residential oil burning, waste incineration, construction and demolition activities and re-suspension of surrounding contaminated soils and makes a significant contribution to the pollution in the urban environment.Therefore, the study of urban soil is important for determining the origin, distribution, and level of heavy metal contamination in urban environments.Present paper deal with the review of the soil analysis and hazardous effects on human health.The study of environment is going on from centuries and the chemical composition of naturally occurring soil is keep on changing according to the climatic and atmospheric conditions of biosphere.This ratio is the deciding factor of fertility of soil and as the composition of soil keep on changing the fertility and quality of soil degrading simultaneously.Two main sources of metal concentration inherited from parent rock, during origin of earth and anthropogenic contamination [10].It causes the change in heavy metal ratio in soil and plants during a period [36].Although forests soil is less contaminated due to least human influence [36].The variations in the composition of heavy metal in soil have effect on nature of mine soils and its risk assessment @