Distribution patterns of lead in urban soil and dust in Shenyang city, Northeast China

	Distribution patterns of lead in urban soil and dust in Shenyang city, Northeast China
	Wang, JD ; Ren, HM ; Zhang, XL
	2006
会议名称	5th International Conference on Environmental Geochemistry in the Tropics
会议日期	2006
会议地点	Haikou, PEOPLES R CHINA
关键词	dust heavy metals industrial pollution soil urban distribution
英文摘要	We investigated the spatial distribution of Pb in soil and dust samples collected from 54 sites in Shenyang city, Liaoning province, Northeast China. Soil background Pb concentration was 22 mg kg(-1) and control values from non-industrial areas were 33 mg kg(-1) for soil and 38 mg kg(-1) for dust. Soil Pb concentrations varied widely, ranging from 26 to 2911 mg kg(-1), with a mean concentration of 200 mg kg(-1), 9 times the background value and 6 times the control value. There was great variation in soil Pb, with a coefficient of variation (CV) of 1.06 and a standard deviation (SD) of 212 mg kg(-1). Dust Pb concentrations fluctuated from 20 to 2810 mg kg(-1), with a mean value of 220 mg kg(-1), almost 6 times the control value. No significant differences in distribution were observed between soil Pb and dust Pb. The highest Pb concentration was observed in Tiexi district in an industrial area. Soil Pb concentration decreased with depth and with distance from the pollution source. Lead concentrations initially changed little but then decreased with distance from the roadside, and were generally higher on the east side of roads than on the west. Lead contents in different categories of urban area differed substantially with dust and soil Pb concentrations decreasing in the sequence: industrial > business > mixed (residential, culture and education)> reference areas.
会议主办者	Soc Environm Geochem & Hlth
会议录	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
会议录出版者	SPRINGER
会议录出版地	DORDRECHT
语种	英语
WOS记录号	WOS:000237333800008
内容类型	会议论文
源URL	[http://159.226.123.10/handle/322005/4805]
专题	东北地理与农业生态研究所_合作研究组_会议论文
推荐引用方式 GB/T 7714	Wang, JD,Ren, HM,Zhang, XL. Distribution patterns of lead in urban soil and dust in Shenyang city, Northeast China[C]. 见:5th International Conference on Environmental Geochemistry in the Tropics. Haikou, PEOPLES R CHINA. 2006.