极地研究2025，Vol.37Issue(2)：264-274,11.DOI:10.13679/j.jdyj.20230037
中国第32次南极考察航线上空气溶胶中金属元素的分布特征和来源解析
Distributional characteristics and source analysis of metallic elements in aerosols over the route of the 32nd Chinese Antarctic Research Expedition
摘要
Abstract
This study analyzed the concentrations of six trace metal elements(As,Se,Cd,Sb,Hg,and Pb)in aerosols over the ocean section and the Zhongshan Station to Kunlun Station section in Antarctica using in-ductively coupled plasma mass spectrometry and aerosol samples collected during the 32nd Chinese Antarc-tic Research Expedition.The sources of the elements were investigated using principal component analysis.Results revealed that the average concentrations of metal elements in the aerosols over the ocean section are in the following order:Se>As>Sb>Cd>Pb>Hg,with mean values of(3.24±3.2),(1.61±2.44),(1.37±2.4),(0.51±0.94),(0.16±0.53),and(0.1±0.14)ng·m-3,respectively.In the Zhongshan Station to Kunlun Station section,the average concentrations of metal elements in the aerosols over the Antarctic ice are in the following order:As>Sb>Se>Hg>Pb>Cd,with mean values of(0.49±0.06),(0.22±0.16),(0.14±0.09),(0.11±0.13),(0.01±0.03),and(0.01±0.03)ng·m-3,respectively.The overall distribution of metal concentrations in aerosols over certain ocean areas is in the following order:East China Sea>Western Pacific>South Pacific>Southern Ocean.Source analysis suggested that the metal elements in the aerosols of the ocean section(Antarctic inland section)might derive mainly from industrial production,ore mining,and ship transportation(atmospheric long-range transport processes).关键词
金属元素/气溶胶/分布特征/来源解析/南极Key words
metals/aerosols/distributional characteristics/source analysis/Antarctica引用本文复制引用
胡松,李院生,马红梅,马天鸣..中国第32次南极考察航线上空气溶胶中金属元素的分布特征和来源解析[J].极地研究,2025,37(2):264-274,11.基金项目
国家自然科学基金(41876225)资助 （41876225）
