Journal
CHEMOSPHERE
Volume 77, Issue 3, Pages 368-375Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2009.07.020
Keywords
Groundwater; Vegetables; Human health; Manganese; Sequential indicator simulation
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Funding
- National 863 High Technologies Research Foundation of China [2004AA649370]
- National Basic Research Program (973 Program) [2005CB724203]
- National Foundation for Distinguished Young Scholars [5042596, 50225926]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT 0719]
- Environmental Protection Technology Research Program of Hunan, China [2008108]
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This paper spatially analyzed human health risk associated with ingesting manganese (Mn) contents in groundwater and vegetables irrigated with contaminated pond water in Huangxing Town, Middle China. The combination of monitoring data and sequential indicator simulation (SIS) was used to determine Mn exposure distributions in pond water and groundwater. Hazard quotient (HQ) associated with ingesting Mn was calculated to evaluate the risk to human health. Many HQs determined from risks exceed I in the region, indicating that the use of groundwater and pond water poses potential risk to human health. Lower risk areas are located in the northwest and partly southeast of the region. The probabilistic risk assessment formulated suitable references for pollution remedy and control in Huangxing Town. Safe areas in 75th percentile of HQ map are suggested to be safe for use and, the manganese residues in the unsafe areas of the 25th percentile of HQ map is to be treated firstly. (C) 2009 Published by Elsevier Ltd.
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