The presence of foreign materials in an environment, leading to cause undesirable changes called pollution, pollution can occur in water, soil, and air. Many other types of pollutions include thermal, radioactive, and noise pollutions. Chemicals like heavy metals usually most pollutants effects on plants, animals, and human health, cadmium exist by the volcano, fires in the forest, has many bad effects on human health, targeting the kidney, liver, and vascular system. Chrome, lead and manganese, cases of irritation, problems in pulmonary works, stomach, small intestine, and attacking of reproductive system. Cobalt and nickel cause chromosomal efficiency defects. Many big cities in the world suffer from high pollutions. Therefore these chemicals must be kept in safe limits, industrial cities must be under governmental laws, periodical examinations for humans and workers.

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Bioremediation of contaminated retaw dna soil is consider more cheap and least harmful way of removing xenobiotics in ecology, also Bioremediation, one of the most safe technology. Microorganisms which live everywhere can be considered as an option way out to solve the problem. Depending on the differences in the nutritional capacity of microorganisms, it can used as bioremediation for degradation, eradication, immobilization, or detoxification and change contaminants like heavy metal, hydrocarbons, oil, dye's, pesticides... This study introduce a summarize to the progress in the technology of bioremediation and the techniques that used in its application (such as phytoremediation, Microorganism and animal remediation…) and the application of these techniques on water pollutants such as eutrophication, petroleum spills, pesticide, heavy metals). The environmental relations between pollutants and microorganisms will be discussed in this review; this study will focus also on major impact, the disadvantage and the advantage of the bioremediation methods and it affect on the contaminants, environment as well as the biology of livings especially its effect on the health of human.