Finding High-Quality Groundwater Resources to Reduce the Hydatidosis Incidence in the Shiqu County of Sichuan Province, China: Analysis, Assessment, and Management

被引:146
作者
Wang, Dan [1 ,2 ]
Wu, Jianhua [1 ,2 ]
Wang, Yuanhang [1 ,2 ]
Ji, Yujie [1 ,2 ]
机构
[1] Changan Univ, Sch Environm Sci & Engn, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China
[2] Changan Univ, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Water pollution; Health risk; Groundwater quality; Water quality index; Multiple linear regression; DRINKING-WATER QUALITY; IRRIGATION PURPOSES; PENGYANG COUNTY; HEALTH-RISK; INDEX; ECHINOCOCCOSIS/HYDATIDOSIS; CONTAMINATION; DISTRICT; FLUORIDE; AREA;
D O I
10.1007/s12403-019-00314-y
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
The prevalence of hydatidosis due to animal husbandry development poses significant health risks to people in the Shiqu County of Sichuan Province, China, where people depend mainly on surface water for domestic uses, which, however, is contaminated due to the development of the animal husbandry. Therefore, groundwater which is protected by the vadose zone and has better quality is now proposed to replace the contaminated surface water as a new source of water supply in this area. To find a high-quality groundwater resource, a detailed investigation and assessment was carried out in this study. The occurrence and distribution of the hydatidosis caused by the consumption of the contaminated surface water were analyzed. The World Health Organization (WHO) and national standards were applied to assess the suitability of groundwater for drinking purpose, and SAR, RSC, %Na, PI were used to evaluate the groundwater quality for irrigation usage. In addition, the overall groundwater quality was assessed using an entropy water quality index (EWQI), and its relationships with the physicochemical indices were discussed using the multiple linear regression models to explore the most important physicochemical indices affecting the groundwater quality. Finally, some measures for the prevention and treatment of the hydatidosis disease were proposed. The results show that the groundwater found beneath the study area is generally in good to excellent quality with low salinity and major ions. Groundwater in all constructed wells except only one is suitable for domestic and irrigation purposes with majority of the samples falling into HCO3-Ca center dot Mg type. The overall groundwater quality is mainly affected by COD, SO42-, and TH. Measures to reduce the incidence of hydatidosis such as cutting off the hydatidosis exposure pathway and improving the sanitation system are proposed.
引用
收藏
页码:307 / 322
页数:16
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