Nesterova O. V., Tregubova V. G., Semal V. A.
В журнале Eurasian Soil Science
Год: 2014 Том: 47 Номер: 11 Страницы: 1161 - 1166
The chronological review and analysis of the existing regulatory documents relevant to the assess ment of soil contamination with heavy metals have been presented. Attention has been given to the incorrect use of the term “total heavy metal content” and the method of its determination in a 5 M nitric acid solution recommended by some regulatory documents. The maximum permissible concentrations (MPCs) and ten tatively permissible concentrations (TPCTPCs) for the total heavy metal contents are based on the above method; therefore, the conventional methods of determining the true total contents of heavy metals overes timate the degree of contamination. To avoid confusion, it has been proposed to call the content of a heavy metal in a 5 M nitric acid solution the “pseudototal” content and to compare the experimental results with the MPC or TPCTPC values only if the methods recommended by the regulatory documents were used.
