极地研究2017，Vol.29Issue(1)：33-44,12.DOI:10.13679/j.jdyj.2017.1.033
北极8种典型痕量金属及3种铂系贵金属浓度水平变化趋势及生态风险
TEMPORAL TRENDS AND ECOLOGICAL RISKS OF EIGHT TYPICAL TRACE METALS AND THREE PLATINUM GROUP METALS IN THE ARCTIC
摘要
Abstract
The pathway for trace metals entering the Arctic region includes ocean input, atmospheric transporta-tion, river input, land runoff, and atmospheric deposition. This study analyzed the temporal trends of several trace metals in a variety of environmental media from the Arctic region. Among these trace metals, eight typical trace metals (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) have been the focus of previous environmental monitoring. However, mining and smelting activities and the application of automobile catalysts have led to platinum group metals (including Pt, Pd, and Rh) potentially becoming serious pollutants. The results of this study showed that Pb and Hg, attributable to industrial development, present variation trends distinct from Cd, Zn, and Cu in the environmental media, and that Pt, Pd, and Rh concentrations evidence global pollution resulting from large-scale transportation from areas of human activity. The potential risks associated with As, Cd, Cr, Cu, Hg, Pb, and Zn are also assessed based on previously published scientific data on the levels of trace metals in surface sediments from areas within the Arctic Sea. It is concluded that concentrations of As, Cd, and Cu in the sediments across a large part of the Arctic Sea probably pose a threat to marine organisms. Concentrations of Hg, MeHg, and Zn in the organs of Arctic animals have been reported to be accumulating with trophic level, and this evidence of definite toxicity requires further study.关键词
痕量金属/铂系贵金属/浓度水平/生态风险/北极Key words
trace metal/platinum group metal/temporal trend/ecological risk/Arctic引用本文复制引用
颜菁,陆志波,张洁..北极8种典型痕量金属及3种铂系贵金属浓度水平变化趋势及生态风险[J].极地研究,2017,29(1):33-44,12.基金项目
国家自然科学基金青年基金(41406213)资助 （41406213）
