Assessment of Pb Contamination on Antarctic Surface Based on Total and Speciation Analysis

Abstract

Human activities can bring a certain degree of heavy metal emissions to the Antarctic soil environment. Although using the traditional total analysis of heavy metal to determine the impact of human activities have some reference points, there are still some limitations. In recent years, the speciation analysis of heavy metals has gained universal attention and rapid development in the assessment of heavy metal contamination in the environment. Combining the total analysis of heavy metal Pb, this paper attempted to use two indexes of "speciation concentration/total concentration" and "target sample speciation/baseline speciation" to evaluate the distribution characteristics of heavy metal Pb and had a discussion about the contamination sources of Pb in a typical Antarctic station. Based on this we proposed a new method of evaluating the heavy metal contamination in Antarctic soil environmental.