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	Rare earth element components in atmospheric particulates in the Bayan Obo mine region
	Liang T.; Zhang Q.
	2014
关键词	Rare earth elements Atmospheric particles TSP PM10 Bayan Obo ree deposits china emission matter soil toxicity province metals plants pm10
英文摘要	The Bayan Obo mine, located in Inner Mongolia, China, is the largest light rare earth body ever found in the world. The research for rare earth elements (REEs) enrichment in atmospheric particulates caused by mining and ore processing is fairly limited so far. In this paper, atmospheric particulates including total suspended particulate (TSP) matter and particles with an equivalent aerodynamic diameter less than 10 mu m (PM10) were collected around the Bayan Obo mine region, in August 2012 and March 2013, to analyze the levels and distributions of REEs in particles. The total concentrations of REEs for TSP were 149.8 and 239.6 ng/m(3), and those for PM10, were 42.8 and 68.9 ng/m(3), in August 2012 and March 2013, respectively. Enrichment factor was calculated for all 14 REEs in the TSP and PM10 and the results indicated that REEs enrichment in atmosphere particulates was caused by anthropogenic sources and influenced by the strong wind in springtime. The spatial distribution of REEs in TSP showed a strong gradient concentration in the prevailing wind direction. REE chondrite normalized patterns of TSP and PM10 were similar and the normalized curves inclined to the right side, showing the conspicuous fractionation between the light REEs and heavy REE, which supported by the chondrite normalized concentration ratios calculated for selected elements (La-N/Yb-N, La-N/Sm-N, Gd-N/Yb-N). (C) 2014 Elsevier Inc. All rights reserved.
出处	Environmental Research
卷	131
页	64-70
收录类别	SCI
语种	英语
ISSN号	0013-9351
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29548]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Liang T.,Zhang Q.. Rare earth element components in atmospheric particulates in the Bayan Obo mine region. 2014.

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