Characteristics and health risk assessment of groundwater pollution in rural area of a city in Northern Henan Province

Abstract

Abstract: Objective To analyze the status and health risk of groundwater pollution in rural area of a city in Northern Henan Province,provide scientific basis for improving rural ecological environment and promoting agricultural and rural modernization. Methods From January to December 2021,294 samples of private wells and domestic tap water in the study area were collected,and 39 indicators were tested. The correlation and sources among rural groundwater quality characteristics,pollution status and main pollution factors were analyzed by SPSS 24.0 software,and the health risk assessment was carried out based on the evaluation model of U.S. Enviromental Protection Agency（USEPA）. Results 10 indexes of total hardness,soluble total solids,sulfate,chloride,manganese,oxygen consumption,sodium,fluoride,iodide and total number of colonies in the rural groundwater in the study area exceeded the Class Ⅲ standard limit of Groundwater Quality Standard（GB/T 14848-2017） to varying degrees. Eight indexes of total hardness,soluble total solids,sulfate,chloride,manganese,sodium,fluoride and total number of colonies exceeded the limit value specified in the Sanitary Standard for Drinking Water（GB 5749-2022）. The other 29 indexes were better than or in line with the Class Ⅲ standard limit of the Groundwater Quality Standard（GB/T 14848-2017）. The coefficients of variation of manganese,iodide and total colony were 2.00,1.25 and 2.16,respectively,which was mainly affected by human activities. The total hardness,soluble total solids,sulfate and chloride are homologous,which were mainly affected by regional stratigraphic factors,hydrogeological conditions and hydrogeochemical factors. The manganese was less harmful to the human health of adults and minors,and the amount of oral ingestion was within the acceptable range of human dose. The sample high value point of fluorine was more harmful to the human health of adults and minors,which exceeded the acceptable dose of oral ingestion,the chronic health risk of minors（HQ_max=1.613） was 1.4 times that of adults（HQ_max=1.145）,while the human health risk of minors（D_max=0.097） was 1.5 times that of adults（D_max=0.069）. Conclusion The fluorine should be taken as the key object of rural groundwater ecological environment control in this area,it is necessary to attract the attention of relevant departments,take relevant measures to strengthen the rural groundwater quality control,and improve the rural ecological environment.

Key words: Groundwater, Health risk assessment, Water quality characteristics, Rural area

CLC Number:

R123.9

TIAN Yu, YANG Zhixuan, LIU Hongyan, WANG Ping, REN Jiahao, LIU Zhiguang. Characteristics and health risk assessment of groundwater pollution in rural area of a city in Northern Henan Province. [J]OCCUPATION AND HEALTH, 2024, 40(18): 2539-2543.

References

[1] 国家统计局.中华人民共和国2018年国民经济和社会发展统计公报[N].人民日报,2019-03-01(010).
[2] 白雅,李壮,黄红梅,等.华北四城市生活污水中农药残留及健康风险[J].中国环境科学,2022,42(10):4871-4879.
[3] 李丽娟,张东伟,杨丽婷,等.丹江口水库水体8种重金属健康风险评估[J].四川环境,2022,41(4):247-251.
[4] 程焰,王亚,周永章,等.珠海市地下水系统中重金属和类金属污染状况与污染来源分析[J].矿物岩石地球化学通报,2019(38):1-9.
[5] 徐美娟,鲍波,陈春燕,等.宁波市地表水重金属污染现状和健康风险评价[J].环境科学,2018,39(2):729-137.
[6] 南淑清,张洪川,李胜昌,等.典型石油化工区域地下水环境质量评价[J].干旱环境监测,2020,34(3):138-144.
[7] 陈泓霖,邱国良.湘江衡阳段水环境健康风险评价[J].仪器仪表与分析监测,2020(2):31-34.
[8] 中华人民共和国环境保护部.水质采样技术指导:HJ 494—2009[S].北京:中国环境科学出版社,2009:1-14.
[9] 中华人民共和国环境保护部.地下水环境监测技术规范:HJ 164—2020[S].北京:中国环境科学出版社,2020:1-34.
[10] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会:地下水质量标准:GB/T 14848—2017[S]中国国家标准化管理委员会:地下水质量标准:GB/T 14848—2017[S].北京:中国环境科学出版社,2017:2-3.
[11] U.S. Enviromental Protection Agency.Guidelines for exposure assessment[R].Washington D.C.,USA:U.S. Enviromental Protection Agency,1992:600/Z-92/001.
[12] U.S. Enviromental Protection Agency.Guidelines for exposure assessment[R].Washington D.C.,USA:U.S. Enviromental Protection Agency,2005:630/P-03/001F.
[13] U.S.Enviromental Protection Agency.Guidelines for human exposure assessment[R].Washington D.C.,USA:U.S. Enviromental Protection Agency,2019.
[14] PANDE B,SUTHAR S,SINGH V.Accumulation and heath risk of heavy metals in sugarcane irrigated effluent in some rural areas of Uttarakhand,India[J].Process Saf Environ Prot,2016,102:655-666.
[15] 李辉,季成叶,宗心南,等.中国0~18岁儿童、青少年身高、体重的标准化生长曲线[J].中华儿科杂志,2009,47(7):487-492.
[16] U.S.Enviromental Protection Agency.Exposure Factors Handbook[R].Washington D.C.,USA:U.S. Enviromental Protection Agency,2011.
[17] 中华人民共和国环境保护部.中国人群暴露参数手册(儿童卷)[M].北京:中国环境出版社,2016,94-207.
[18] 中华人民共和国环境保护部.中国人群暴露参数手册(成人卷)[M].北京:中国环境出版社,2013,45-217.
[19] 国家市场监督管理总局,国家标准化管理委员会.生活饮用水卫生标准:GB/T5749—2022[S].北京:人民卫生出版社,2022:2-4.
[20] 李珂凌,宋丽红.安阳市地下水回灌可行性分析[J].地下水,2004, 26(2):109-111.
[21] 杨德贵,宋立志,张国建.安阳市地下水动态特征及影响因素分析[J].地下水,2010,32(5):107.
[22] 贾秀阁,刘灵钰.河南省浅层地下水水化学特征研究[J].矿产勘察,2022,13(7):957-966.
[23] KHAN S,CAO Q,ZHENG Y M,et al.Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing,China[J].Environ Pollut,2008,152(3):686-692.