Bioindicators and environmental protection

Abstract

The plants capable to occlude the maximum quantity of the heavy metals (HM) from soil solution are studied. Plants - indicators of accumulation of heavy metals are allocated, the new directions on decrease in toxicity of the soil are offered. For the purpose of studying of sorption abilities of bean herbs studied accumulation of heavy metals on phases of development of plants. Biological features bean which are capable to occlude heavy metals from the soil and air and by that to clear the polluted site are established. Plants can be the main bioindicators of impurity of soils. For a start in different environments the content of heavy metals by means of a method of chemical analysis control was defined, then compared maximum permissible concentration and drew a conclusion about danger of complex influence to the person and a biota For strengthening of sorption brought tseolitsoderzhashchy clays of Alanit of a local origin at crops of bean herbs. It is revealed that the maximum sorption abilities are found in plants vyazelya motley, and in mix with an amaranth, sowed cherezryadno the maximum effect on decrease in heavy metals on the polluted site is reached. A plant the ambrosia polynnolistny most of all accumulates doses of heavy metals.