METHOD FOR DETERMINATION OF LEVEL OF ECOLOGICAL RICK FOR TERRITORIES WITH DEVELOPMENT PRESSURE BY MOBILE FORMS OF TOXIC ELEMENTS IN EARTHS

摘要

Method for determination of level of ecological risk of territories with development pressure by movable forms of toxic elements in earths at which one determines physical-chemical conditions of earths with analysis of content of chemical element just under field conditions by means of express potentiometric measuring apparatuses, with comparison of average content of movable forms of chemical elements to its total content and value of maximal permissible specific for earths with different acid-alkaline conditions (pH) concentration, with determination of peculiarities of migration and transition to biota of mobile forms of chemical elements, with reveal of abnormal content of toxic elements at territories of ecological risk, one applies results of analyses obtained to plot ecological-geochemical maps by movable forms of chemical elements.