基于空间分析荞麦地流域地下水健康风险评价

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Abstract Concentration of five metals, Cr, Pb, Co, Mn, Hg and one inorganic toxicological index, fluoride from twenty-four samples collected from groundwater in the Qiaomaidi watershed were measured and analyzed. Based on the semi-variance model and other geostatistical methods, the distribution characteristics of the groundwater health risk assessment were analyzed. The health risks of adults and children through drinking pathway were 9.27×10^-10~4.59×10^-5a^-1 and 1.10×10^-8~5.46×10^-4a^-1, respectively. The groundwater health risks were dominant by Cr, and were consistent for adults and children. The distribution of the health risks was spatial regularity, and presented as a strip from south to north. Influenced by the Yaoshan town located in the middle of the watershed, the health risks increased remarkably in the south which was the downstream.

Key words： pesticide groundwater health risk assessment adults and children spatial characteristics semi-variogram model Qiaomaidi watershed

Received: 25 April 2019

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X523

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	ZHANG Yong
	GUO Chun-qing
	SUN Ping-an
	ZHU Yan-guang
	YU Shi

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ZHANG Yong,GUO Chun-qing,SUN Ping-an等. Groundwater health risk assessment based on spatial analysis in the Qiaomaidi watershed[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(11): 4762-4768.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I11/4762

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