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Contaminated soil

Post 17082 of 23788

Soil contamination or soil pollution is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals, or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, poly-nuclear aromatic hydrocarbons (such as naphthalene and benzo(a)pyrene), solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical usage.

The concern over soil contamination stems primarily from health risks, from direct contact with the Contaminated soil, vapours from the contaminants, and from secondary contamination of water supplies within and underlying the soil. Mapping of Contaminated soil sites and the resulting clean-up/ remediation are time consuming and expensive tasks, requiring extensive amounts of geology, hydrology, chemistry, computer modelling skills, and GIS in Environmental Contamination, as well as an appreciation of the history of industrial chemistry.

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