International Journal of Environmental Sciences

Volume 2 Issue 3 2012          Pages: 1127- 1134

Study on the Hydrogeochemistry and Non-carcinogenic Health Risk Induced by Fluoride in Pengyang County, China

Author Information:

WU Jianhua- School of Environmental Science and Engineering, Chang’an University, China.

LI Peiyue -School of Environmental Science and Engineering, Chang’an University, China.

QIAN Hui-School of Environmental Science and Engineering, Chang’an University, China.

Groundwater hydrogeochemistry in Pengyang County was investigated and the non-carcinogenic health risk by fluoride through ingestion was assessed with the health risk assessment model recommended by the USEPA. The study shows the hydrochemical facies of pore water and pore-fissure water are generally similar. Na+K type and HCO3 type waters are dominated in the groundwater. The mean HCO3- content in pore water is higher, but the mean Na+ content is lower than those in pore-fissure water. Migration and accumulation of F- in groundwater is influenced jointly by temperature, acidity and alkalinity, groundwater dynamics, aquifer media and many other factors. The high risk zones are mostly located in Gucheng, Baiyang, Wangwa and Luowa, where F- contents in groundwater are usually higher than 1 mg/L. The health risk assessment results are consistent with the distribution of F-. This research is meaningful and important in groundwater protection and management.

Keywords: Hydrogeochemical characteristics, health risk assessment, groundwater, fluoride pollution, non-carcinogenic risk.


© 2012 Copyright WU Jianhua et al, licensee IPA.This is an open access article distributed under the Creative Commons Attribution License (2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The electronic version of the article can be downloaded below.

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