H. Tian, Xiujuan Liang, Y. Gong, Zhuang Kang, Hongtao Jin
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Health risk assessment of nitrate pollution in shallow groundwater: a case study in Changchun New District, China
High concentrations of nitrate in groundwater pose a threat to human health. To quantify groundwater nitrate pollution in China's Changchun New District and evaluate its human health risks, 98 groundwater samples were collected and analyzed. The spatial distribution of groundwater chemical components was variable with concentrations descending from TDS > HCO3 − > Ca2+ > NO3 − > SO4 2- > Na+ > Cl− > Mg2+ > K+ > NO2 − > NH4 +. Notably, NO3 − concentrations ranged from 0.02–492.72 mg/L and averaged 98.62 mg/L. Over 50% of samples exceeded the Quality Standard for Groundwater of China Class III N threshold (20 mg/L). Principal component analysis determined that NO3 contamination was primarily due to the excessive use of fertilizers in agriculture. A human health risk assessment model was used to assess the potential health risks of groundwater NO3 − via drinking water and skin contact pathways. Approximately 90% of adults, 66% of children, and 45% of infants had acceptable health risks in the study area. NO3 − exposure risk in the towns of Longjia and Xiyingcheng was the highest, while urban areas tended to have lower exposures. The health risks of residents, especially minors and infants, were concerned.
期刊介绍:
La Houille Blanche, revue internationale de l ''eau/International Water Journal, is the only almost all French-written journal of Water science.
It promotes the dissemination of research and innovative practices in the field of water, as a key resource for everyday use for human needs, agriculture, energy and transport, and hydraulic public works. This includes environmental and risk assessment and management issues related to hydrology, meteorology, flood, low flows and drought, as well as issues in the field of fluid mechanics, hydraulics machinery, multiphase flows, microfluidics...
La Houille Blanche, International Water Journal, is cited by Science Citation Index Expanded of Institute for Scientific Information (I.S.I) in USA, and by CNRS in France; since 1902, the journal publishes high-standard relevant peer-reviewed research papers.
La Houille Blanche also provides more general information and recent news about the water world, and the SHF association and its members life: scientific events, book review, R & D advancements, …
Six issues per year. Thematical journal for original articles and reviews mostly in French.