In the monograph the concept of interrelation of chemical composition of organs, tissues and biological fluids of parnokopic animals with the environment developed by the author is stated; original approaches to carrying out of monitoring works on estimation of the status of heavy metals, vital microelements and persistent organochlorine pesticides in natural and agrobiogeocenoses are offered. New methods of assessment and correction of polluetant status in organism of wild and agricultural paired ungulates, and also components of their habitat (breeding) were introduced. Theoretical importance of the study is justified by the proof of dependence of gross levels of chemical elements and pesticides in visceral organs and biological fluids of parnokopulate on their status in the environment. With regard to the research problems, the traditional field research methodology, existing methods of chemical analysis of the substance and statistical processing of the obtained data have been effectively used.