الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
 |  | from | 154 |  |  |
| | | from | 154 | | |
Abstract
Pesticides are often introduced into the environment at concentrations that cause undesirable effects. They can be transformed as a result of biotic and abiotic processes, leading to changes in their chemical state and ultimately in their toxicity and reactivity. A tremendous amount of attention has been directed toward the pollution of our soil and water supplies and its effects not only on life of many animal and plant species, but also, ultimately, on our life style.
The pollution of soils and groundwater by organic pollutant, particularly pesticides are currently among the most critical environmental problems of our time.(18) The physico-chemical properties of a given pesticide will govern its behavior in the soil and its biological activity, When the concentration of pesticides in soils significantly exceeds the amount normally associated with agricultural applications, remediation is necessary, to lower that concentration, so as not to endanger human, wildlife, food and water.(19) Remediation is any process chemical, physical or biological or a combination that is either introduced or enhanced in order to reduce the concentration of pesticide(s) in soil or water at contaminated sites. Bioremediation is a the process by which living organisms act to degrade hazardous inorganic contaminants to environmentally safe levels in soils subsurface materials, water, sludge and residues. (20)