Historical lead pollution in the central region of Guizhou province, China: A record of lead stable isotopes of lake sediments

	Historical lead pollution in the central region of Guizhou province, China: A record of lead stable isotopes of lake sediments
	Zhi-Qi Zhao; Cong-Qiang Liu; Wei Zhang; Qi-Lian Wang
	2011
发表期刊	Applied Geochemistry
卷号	26 期号:S 页码:S267-S270
摘要	Economic reform in China since 1978 has accelerated economic development nationwide hugely, but has also brought about some environmental pollution. In order to identify the primary Pb source to the atmosphere in the central Guizhou region, Pb isotopic ratios in the acid soluble fraction of sediment from Hongfeng Lake were investigated. Lead isotopes in the lake sediments record the history of regional atmospheric Pb pollution. Before the economic reform in 1978, the (208)Pb/(206)Pb and (206)Pb/(207)Pb ratios in the leachates of lake sediments were constant, with a range of 2.0060 to 2.0117 and of 1.2314 to 1.2355, respectively. In the early period of economic reform (1978 to 1988), with the rapid industrial growth in Guizhou province, the acid soluble Pb isotope ratios in the lake sediments changed sharply: the (208)Pb/(206)Pb ratios increased from 2.0212 to about 2.05, while the (206)Pb/(207)Pb ratios decreased from 1.2251 to 1.2060. Emissions from Pb-ore-related industries are suggested to be the major pollution source of Pb in this period. Due to output from a local power plant since 1988, the isotope ratios of the acid soluble Pb in sediments in 1990s are characterized by a little higher radiogenic Pb ((208)Pb/(206)Pb = 2.0340-2.0400; (206)Pb/(207)Pb = 1.2122-1.2158) than for the 1980s.
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/4900
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Zhi-Qi Zhao,Cong-Qiang Liu,Wei Zhang,et al. Historical lead pollution in the central region of Guizhou province, China: A record of lead stable isotopes of lake sediments[J]. Applied Geochemistry,2011,26(S):S267-S270.
APA	Zhi-Qi Zhao,Cong-Qiang Liu,Wei Zhang,&Qi-Lian Wang.(2011).Historical lead pollution in the central region of Guizhou province, China: A record of lead stable isotopes of lake sediments.Applied Geochemistry,26(S),S267-S270.
MLA	Zhi-Qi Zhao,et al."Historical lead pollution in the central region of Guizhou province, China: A record of lead stable isotopes of lake sediments".Applied Geochemistry 26.S(2011):S267-S270.

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