Assessment of heavy metal contamination of dustfall in northern China   from integrated chemical and magnetic investigation

doi:10.1016/j.atmosenv.2013.03.039

CORC > 北京大学 > 地球与空间科学学院

	Assessment of heavy metal contamination of dustfall in northern China from integrated chemical and magnetic investigation
	Qiao, Qingqing ; Huang, Baochun ; Zhang, Chunxia ; Piper, John D. A. ; Pan, Yuepeng ; Sun, Ying
刊名	大气环境
	2013
关键词	Environmental magnetism Dustfall Heavy metals Anthropogenic activities Northern China MULTIVARIATE STATISTICAL TECHNIQUES AIRBORNE PARTICULATE MATTER EASTERN INNER-MONGOLIA HUNSHANDAKE SANDY LAND GOMTI RIVER INDIA STREET DUST ATMOSPHERIC PARTICLES WATER-QUALITY TREE LEAVES POLLUTION
DOI	10.1016/j.atmosenv.2013.03.039
英文摘要	Magnetic phases are a common component of dustfall samples and mineral magnetic studies have been increasingly exploited for air quality studies in recent years to assess the source and spatial-temporal distribution of anthropogenic magnetic particulates and associated heavy metals. Here we report a comparative study of magnetic and chemical properties of atmospheric particulate deposits from rural areas of Inner Mongolia and urban regions of Hebei and Beijing. The sample sets were collected at 13 monitoring stations by the gravimetric method between April 2009 and March 2010. At the rural sites paramagnetic clays, complemented by hematite and goethite recognized by Isothermal Remanent Magnetism (IRM) and Diffuse Reflectance Spectra (DRS) investigations, accompany fine grained magnetite as an important fraction. Although present as a residual phase in samples from the urban regions, coarse-grained magnetite of anthropogenic origin dominants the magnetic signatures in these latter environments. Systematic variations with local anthropogenic activity including traffic, the mining of ores and a range of industrial emissions are identified, together with a seasonal signature in the Beijing area. We use correlations between magnetic concentration-related parameters, notably magnetic susceptibility, and the Pollution Load Index to demonstrate how magnetic parameters can be used as a practical tool for mapping degrees of heavy metal pollution and tracing the sources of pollutants in dustfall samples. (C) 2013 Elsevier Ltd. All rights reserved.; Environmental Sciences; Meteorology & Atmospheric Sciences; SCI(E); EI; 4; ARTICLE; 182-193; 74
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/221447]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Qiao, Qingqing,Huang, Baochun,Zhang, Chunxia,et al. Assessment of heavy metal contamination of dustfall in northern China from integrated chemical and magnetic investigation[J]. 大气环境,2013.
APA	Qiao, Qingqing,Huang, Baochun,Zhang, Chunxia,Piper, John D. A.,Pan, Yuepeng,&Sun, Ying.(2013).Assessment of heavy metal contamination of dustfall in northern China from integrated chemical and magnetic investigation.大气环境.
MLA	Qiao, Qingqing,et al."Assessment of heavy metal contamination of dustfall in northern China from integrated chemical and magnetic investigation".大气环境 (2013).