珠穆朗玛峰地区雪冰中重金属浓度与季节变化(英文)

编号 zgly0001585955

文献类型 期刊论文

文献题名 珠穆朗玛峰地区雪冰中重金属浓度与季节变化(英文)

作者 段建平  王丽丽  任贾文  李论  韩军青 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  Beijing100101  China  ColdandAridRegionEnvironmentalandEngineeringResearchInstitute  CAS  Lanzhou730000  China  InstituteofAtmosphericPhysics  CAS  Beijing100029  China  College 

母体文献 Journal of Geographical Sciences 

年卷期 2009年02期

年份 2009 

分类号 X502 

关键词 heavymetals  seasonalvariations  Mt.QomolangmaRegion 

文摘内容 The concentrations of heavy metals Ba, Pb, Cu, Zn and Co in snow pit collected in September, 2005 from the accumulation area of the East Rongbuk Glacier(6523 m a.s.l.), which lies on the northern slope of Mt.Qomolangma, were determined by inductively coupled plasma mass spectrometry(ICP-MS).Concentrations(pg/ml) of heavy metals are Ba2-227, Co2.8-15.7, Cu10-120, Zn29-4948 and Pb14-142, respectively.The δ18O was determined by MAT-252.The time period of the snow pit spans from autumn 2005 to summer 2004.Seasonal variations of the concentrations and δ18O are observed, of which Pb, Cu, Zn and Co are much lower in summer monsoon season than that in non summer monsoon season, suggesting that different sources of heavy metals contributed to the site.EFc(crustal enrichment factors) is Co3.6, Cu27, Pb33 and Zn180, respectively.Higher EFc values of Pb, Cu and Zn suggest that Pb, Cu especially Zn are mainly contributed by anthropogenic sources.