Health risk assessment of heavy metal pollution in soil of a tin mining area in Hunan Province
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摘要:
研究目的 本文采集表层土壤114件、柱状土壤3组,分析测定Cu、Pb、Zn、Cr、Cd、As、Hg等7种重金属元素含量;评价锡矿区周边土壤重金属污染状况与风险。
研究方法 采用地累积指数法、潜在生态风险指数法和健康风险评估模型,对该地区污染程度、潜在生态风险和人体健康风险进行评价。
研究结果 (1)研究区土壤重金属平均含量表现为As>Zn>Pb>Cu>Cr>Cd>Hg;(2)就空间分布而言,Cu、Pb、Zn、Cd和As富集区主要分布于矿区附近,含量随深度增加而降低,在60 cm之下趋于稳定;Cr富集区主要分布于人口较密集的生活区,Hg分布均匀,无明显富集区;(3)地累积结果显示,研究区As和Cd呈极重污染,Cu、Pb和Zn呈轻—极重污染,Cr和Hg呈现无—轻度污染;(4)潜在生态结果显示,研究区整体处于极重污染水平,As和Cd生态风险最为突出;(5)健康风险评估显示,土壤中As和Pb为主要非致癌因子,As为主要致癌因子;As元素非致癌与致癌风险最大,经口摄入为最主要的暴露途径,儿童健康更易受到重金属污染的威胁。
结论 研究区7种重金属均在一定程度上受到人为因素的影响,As和Cd受人为影响程度最大,其次为Pb、Zn和Cu,Cr和Hg受人为影响较弱。
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关键词:
- 土壤重金属 /
- 污染程度 /
- 风险评价 /
- 矿山地质环境调查工程 /
- 湖南
Abstract:This paper is the result of mine environmental geological survey engineering.
Objective This paper investigates the status and risk of heavy metal pollution in the soil surrounding a tin mining area, focusing on 7 heavy metal elements, namely Cu, Pb, Zn, Cr, Cd, As and Hg, found in 114 surface soil and three column soil group.
Methods The pollution level, potential ecological risk and human health risk in the area were evaluated using the geo-accumulation index method, potential ecological risk index method and health risk assessment model.
Results The average content of soil heavy metals in the study area manifested that As > Zn > Pb > Cu > Cr > Cd > Hg. In terms of spatial distribution, the elements Cu, Pb, Zn, Cd and As are predominantly concentrated near the mine area, exhibiting a decrease in content as the soil depth increases and tend to be stable below 60cm. The Cr element is primarily localized within congested area. While the Hg element displays a uniform distribution. The results of the cumulative land show that the As and Cd exhibit high levels of pollution, while Cu, Pb and Zn display low-heavy level polluted. The Cr and Hg elements show low-no level pollution in the study area. Potential ecological results reveal that the study area experiences high pollution levels, with As and Cd posing the most severe ecological risks. Health risk assessment shows that As and Pb elements in the soil are the main non-carcinogenic factors and the As element is the main carcinogenic factor. The As element is the main risk of non-carcinogenic and carcinogenicity. The oral ingestion is the main route of exposure, and children are more vulnerable to heavy metal pollution.
Conclusion To varying degrees, anthropogenic activities have influenced the presence of all seven heavy metals within the study area. The As and Cd elements are the most influenced by humans, followed by Pb, Zn and Cu. The Cr and Hg elements have been less affected by humans.
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表 1 地累积指数污染程度分级
Table 1. Classifications of geo-accumulation index pollution level
表 2 潜在生态风险评价等级划分
Table 2. Classifications potential ecological risk evaluation level
表 3 健康风险评估模型暴露参数
Table 3. Exposure parameters of health risk assessment model exposure parameters
表 4 不同暴露途径的参考剂量(RfD)和斜率因子(SF)
Table 4. Reference dose (RfD) and slope factor (SF) of different exposure routes
表 5 研究区土壤重金属含量特征分析(mg/kg)
Table 5. Characterization of soil heavy metal content in the study area (mg/kg)
表 6 土壤重金属非致癌平均日暴露量(mg/(kg·d))
Table 6. Average daily exposure of non-carcinogenic heavy metals in soils (mg/(kg·d))
表 7 土壤重金属致癌平均日暴露量(mg/(kg·d))
Table 7. Average daily exposure of soil heavy metals causing cancer (mg/(kg·d))
表 8 土壤重金属非致癌健康风险指数
Table 8. Non-carcinogenic health risk index of soil heavy metal
表 9 土壤重金属致癌健康风险指数
Table 9. Cancer health risk index of soil heavy metal
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Al Osman M, Yang F, Massey I Y. 2019. Exposure routes and health effects of heavy metals on children[J]. Biometals, 32: 563-573. doi: 10.1007/s10534-019-00193-5
Bao Liran, Deng Hai, Jia Zhongmin, Li Yu, Dong Jinxiu, Yan Mingshu, Zhang Fenglei. 2020. Ecological and health risk assessment of heavy metals in farmland soil of northwest Xiushan, Chongqing[J]. Geology in China, 47(6): 1625-1636 (in Chinese with English abstract).
Bernard A. 2008. Cadmium and its adverse effects on human health[J]. Indian Journal of Medical Research, 128(4): 557-564.
Bi X Y, Feng X B, Yang Y G, Qiu G L, Li G H, Li F L, Liu T Z, Fu Z Y, Jin Z S. 2006. Environmental contamination of heavy metals from zinc smelting areas in Hezhang County, western Guizhou, China[J]. Environment International, 32: 883-890. doi: 10.1016/j.envint.2006.05.010
Chen Xiqing, Qin Zhengwei, Li Jianfeng, Xia Jie, Zhang Zunzun, Lu Youyue, Fu Jianming. 2021. The environmental geochemical characteristics of the south slope of Qitianling Mountain, southern Hunan Province[J]. South China Geology, 37(3): 298-312 (in Chinese with English abstract).
Chen Z Y, Zhao Y Y, Chen D L, Huang H T, Zhao Y, Wu Y J. 2023. Ecological risk assessment and early warning of heavy metal cumulation in the soils near the Luanchuan molybdenum polymetallic mine concentration area, Henan Province, central China[J]. China Geology, 6: 15-26. http://qikan.cqvip.com/Qikan/Article/Detail?id=7108886065
Duruibe J, Ogwuegbu M, Egwurugwu J. 2007. Heavy metal pollution and human biotoxic effects[J]. International Journal of Physical Sciences, 2(5): 112-118.
Forstner U, Ahlf W, Calmano W. 1993. Sediment quality objectives and criteria development in Germany[J]. Water Science and Technology, 28(8): 307-314.
Gao Runzhong, He Along, Zhang Sheng, Du Dandan, Qin Ziyuan, Wang Xixi. 2019. Spatial distribution characteristics and potential ecological risk assessment of Cr, Hg and As in soils of the Salt Lake Basin in northwest China[J]. Acta Ecologica Sinica, 39(7): 2532-2544 (in Chinese with English abstract).
Guo Shihong, Hou Xiaolong, Qiu Haiyuan, Liu Aiqin, Ma Xiangqing, Wang Yousheng. 2015. Speciation characteristics and risk assessment of heavy metals in soils from different functional zones of the lead-zinc mine[J]. Geological Bulletin of China, 34(11): 2047-2053 (in Chinese with English abstract). doi: 10.3969/j.issn.1671-2552.2015.11.008
Guo Zhaohui, Zhu Yongguan. 2004. Contamination and availabile contents of heavy metals in soils in the typical mining and smelting circumjacent districts[J]. Ecology and Environmental Sciences, (4): 553-555 (in Chinese with English abstract).
Hakanson L. 1980. An ecological risk index for aquatic pollution control: A sedimentological approach[J]. Water Research, 14(8): 975-1001. doi: 10.1016/0043-1354(80)90143-8
He Dongming, Wang Xiaofei, Chen Lijun, Su Rong. 2014. Assessment on heavy metals contaminations of sugarcane soil in Guangxi Province by the geo-accumulation index and potential ecological risk index[J]. Journal of Agricultural Resources and Environment, 31(2): 126-131 (in Chinese with English abstract).
Hu Z G, Wang C S, Li K Q, Zhu X Y. 2018. Distribution characteristics and pollution assessment of soil heavy metals over a typical nonferrous metal mine area in Chifeng, Inner Mongolia, China[J]. Environmental Earth Sciences, 77: 638. doi: 10.1007/s12665-018-7771-1
Jaishankar M, Tseten T, Anbalagan N, Mathew B, Beeregowda K. 2014. Toxicity, mechanism and health effects of some heavy metals[J]. Interdisciplinary toxicology, 7(2): 60. doi: 10.2478/intox-2014-0009
Jiang Chengyi. 2020. Heavy Metal Pollution in Farmland Soil and Crops in a Mining Area in Hunan Province and its Health Risk Assessment[D]. Changsha: Hunan Agricultural University (in Chinese with English abstract).
Lei Ming, Zeng Min, Zheng Yuanming, Liao Baihan, Zhu Yongguan. 2008. Heavy metals pollution and potential ecological risk in paddy soils around mine areas and smelting areas in Hunan Province[J]. Acta Scientiae Circumstantiae, (6): 1212-1220 (in Chinese with English abstract). doi: 10.3321/j.issn:0253-2468.2008.06.029
Li Hua, Li Hailong, Zhu Yuen, Liu Miao, Shi Weiyu. 2015. Health risk assessment based on bioavailability of heavy metals in contaminated sites[J]. Journal of Earth Environment, 6(1): 60-66 (in Chinese with English abstract).
Li X, Yang H, Zhang C, Zeng G M, Liu Y G, Xu W H, Wu Y, Lan S M. 2017. Spatial distribution and transport characteristics of heavy metals around an antimony mine area in central China[J]. Chemosphere, 170: 17-24. doi: 10.1016/j.chemosphere.2016.12.011
Liu Tong, Liu Chuanpeng, Deng Jun, Kang Pengyu, Wang Kaikai, Zhao Yuyan. 2022. Ecological health risk assessment of soil heavy metals in eastern Yinan County, Shandong Province[J]. Geology in China, 49(5): 1497-1508 (in Chinese with English abstract).
Lu J, Lu H, Lei K, Wang W, Guan Y. 2019. Trace metal element pollution of soil and water resources caused by small-scale metallic ore mining activities: A case study from a sphalerite mine in North China[J]. Environmental Science and Pollution Research, 26(24): 24630-24644. doi: 10.1007/s11356-019-05703-z
Meite F, Alvarez-Zaldívar P, Crochet A, Wiegert C, Payraudeau S, Imfeld G. 2018. Impact of rainfall patterns and frequency on the export of pesticides and heavy-metals from agricultural soils[J]. Science of the Total Environment, 616: 500-509.
Mo Jia, Lei Liangqi, Shi Zhenhuan, Mo Binji. 2015. Heavy metal pollution comprehensive evaluation of oxide tailings in Shanhu tungsten-tin mine area of Guangxi[J]. Nonferrous Metals Engineering, 5(4): 79-84 (in Chinese with English abstract). doi: 10.3969/j.issn.2095-1744.2015.04.019
Rehmana I, Ishaqa M, Alib L, Khanc S, Ahmada I, Ud Dinb I, Ullaha H. 2018. Enrichment, spatial distribution of potential ecological and human health risk assessment via toxic metals in soil and surface water ingestion in the vicinity of Sewakht mines, district Chitral, Northern Pakistan[J]. Ecotoxicology and Environmental Safety, 154: 127-136. doi: 10.1016/j.ecoenv.2018.02.033
Reuben A, Caspi A, Belsky D W, Broadbent J, Harrington H, Sugden K, Houts R M, Ramrakha S, Poulton R, Moffitt T E. 2017. Association of childhood blood lead levels with cognitive function and socioeconomic status at age 38 years and with IQ change and socioeconomic mobility between childhood and adulthood[J]. Jama, 317(12): 1244-1251. doi: 10.1001/jama.2017.1712
Singh J, Kalamdhad A. 2011. Effects of heavy metals on soil, plants, human health and aquatic life[J]. International Journal of Research in Chemistry and Environment, 1(2): 15-21.
Sun Z H, Xie X D, Wang P, Hu Y N, Cheng H F. 2018. Heavy metal pollution caused by small-scale metal ore mining activities: A case study from a polymetallic mine in South China[J]. Science of the Total Environment, 639: 217-227. doi: 10.1016/j.scitotenv.2018.05.176
Wang Changyu, Zhang Surong, Liu Jihong, Xing Yi, Li Mingze, Liu Qingxue. 2021. Pollution level and risk assessment of heavy metals in a metal smelting area of Xiong'an New District[J]. Geology in China, 48(6): 1697-1709 (in Chinese with English abstract).
Wu Guanghai, Wang Chensheng, Chen Honghan. 2020. Eco-environmental assessment and genetic analysis of heavy metal pollution in the soil around the abandoned tungsten-molybdenum mine area in Inner Mongolia[J]. Geology in China, 47(6): 1838-1852 (in Chinese with English abstract).
Xia P H, Ma L, Sun R G, Yang Y, Tang X C, Yan D B, Lin T, Zhang Y T, Yi Y. 2020. Evaluation of potential ecological risk, possible sources and controlling factors of heavy metals in surface sediment of Caohai Wetland, China[J]. Science of the Total Environment, 740: 140231. doi: 10.1016/j.scitotenv.2020.140231
Xu Zhengqi, Ni Shijun, Tuo Xianguo, Zhang Chengjiang. 2008. Calculation of heavy metals' toxicity coefficient in the evaluation of potential ecological risk index[J]. Environmental Science and Technology, 31(2): 112-115 (in Chinese with English abstract).
Yang Min, Teng Ying, Ren Wenjie, Huang Yang, Xu Defu, Fu Zhaocong, Ma Wenting, Luo Yongming. 2016. Pollution and health risk assessment of heavy metals in agricultural soil around Shimen realgar mine[J]. Soils, 48(6): 1172-1178 (in Chinese with English abstract).
Yu Jiayan, Li Bingyu, Zhou Yimin, Li Yongjie, Lei Ming. 2020. Pollution and risk assessment of heavy metal in agricultural soil around an abandon mine site in Hunan Province[J]. Environmental Chemistry, 39(4): 1024-1030 (in Chinese with English abstract).
Yu Xuan, Song Liuting, Teng Yanguo. 2016. Pollution analysis and ecological environment risk assessment of heavy metals in soil sofa Pb-Zn mine in Hunan Province[J]. Journal of Huazhong Agricultural University, 35(5): 27-32 (in Chinese with English abstract).
Zahra N, Kalim I. 2017. Perilous effects of heavy metals contamination on human health[J]. Pakistan Journal of Analytical and Environmental Chemistry, 18(1): 1-17. doi: 10.21743/pjaec/2017.06.01
Zhang Jinde, Tian Lei, Pei Shengliang. 2021. A discussion of soil and water pollution and control countermeasures in mining area of China[J]. Hydrogeology and Engineering Geology, 48(2): 157-163 (in Chinese with English abstract).
Zhang Zhe, Lu Ran, Wu Siyang, Jia Zhibin. 2022. Heavy metal pollution and health risk assessment of mine soil in Yangtze River economic belt[J]. Environmental Science, 43(7): 3763-3772 (in Chinese with English abstract).
Zhang Zunzun, Lin Dongyong, Yu Yushuai, Lu Youyue, Fu Jianming, Li Jianfeng, Qin Zhengwei, Ma Liyan, Ning Yongyun, Zhang Jitao. 2022. Implications to the petrogenesis and Sn mineralization of the granite in the Tengshan'ao Sn deposit, the Nanling metallogenic belt[J]. South China Geology, 38(3): 441-458 (in Chinese with English abstract).
Zhou Nan. 2016. The Pollution and Health Risk Assessment of Heavy Metals in Agricultural Soils and Crops Around A Taolongs in Hunan Province[D]. Hengyang: University of South China (in Chinese with English abstract).
鲍丽然, 邓海, 贾中民, 李瑜, 董金秀, 严明书, 张风雷. 2020. 重庆秀山西北部农田土壤重金属生态健康风险评价[J]. 中国地质, 47(6): 1625-1636. http://geochina.cgs.gov.cn/geochina/article/abstract/20200602?st=search
陈希清, 秦拯纬, 李剑锋, 夏杰, 张遵遵, 卢友月, 付建明. 2021. 湘南骑田岭南坡环境地球化学特征研究[J]. 华南地质, 37(3): 298-312. https://www.cnki.com.cn/Article/CJFDTOTAL-HNKC202103005.htm
高瑞忠, 张阿龙, 张生, 贾德彬, 杜丹丹, 秦子元, 王喜喜. 2019. 西北内陆盐湖盆地土壤重金属Cr、Hg、As空间分布特征及潜在生态风险评价[J]. 生态学报, 39(7): 2532-2544. https://www.cnki.com.cn/Article/CJFDTOTAL-STXB201907027.htm
郭世鸿, 侯晓龙, 邱海源, 刘爱琴, 马祥庆, 王友生. 2015. 基于形态学分析铅锌矿不同功能区土壤重金属元素的分布特征及污染评价[J]. 地质通报, 34(11): 2047-2053. https://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201511008.htm
郭朝晖, 朱永官. 2004. 典型矿冶周边地区土壤重金属污染及有效性含量[J]. 生态环境, (4): 553-555. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYJ20040400O.htm
何东明, 王晓飞, 陈丽君, 苏荣. 2014. 基于地积累指数法和潜在生态风险指数法评价广西某蔗田土壤重金属污染[J]. 农业资源与环境学报, 31(2): 126-131. https://www.cnki.com.cn/Article/CJFDTOTAL-NHFZ201402006.htm
江诚毅. 2020. 湖南某矿区农田土壤与作物中重金属污染情况及其健康风险评价[D]. 长沙: 湖南农业大学.
雷鸣, 曾敏, 郑袁明, 廖柏寒, 朱永官. 2008. 湖南采矿区和冶炼区水稻土重金属污染及其潜在风险评价[J]. 环境科学学报, (6): 1212-1220. https://www.cnki.com.cn/Article/CJFDTOTAL-HJXX200806029.htm
李华, 李海龙, 朱宇恩, 刘苗, 时伟宇. 2015. 基于人体可给性的重金属污染场地健康风险评价[J]. 地球环境学报, 6(1): 60-66. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHJ201501009.htm
刘同, 刘传朋, 邓俊, 康鹏宇, 王凯凯, 赵玉岩. 2022. 山东省沂南县东部土壤重金属生态健康风险评价[J]. 中国地质, 49(5): 1497-1508. http://geochina.cgs.gov.cn/geochina/article/abstract/20220509?st=search
莫佳, 雷良奇, 史振环, 莫斌吉. 2015. 广西珊瑚钨锡矿区氧化物型尾矿重金属污染综合评价[J]. 有色金属工程, 5(4): 79-84. https://www.cnki.com.cn/Article/CJFDTOTAL-YOUS201504019.htm
王昌宇, 张素荣, 刘继红, 邢怡, 李名则, 刘庆学. 2021. 雄安新区某金属冶炼区土壤重金属污染程度及风险评价[J]. 中国地质, 48(6): 1697-1709. http://geochina.cgs.gov.cn/geochina/article/abstract/20210603?st=search
邬光海, 王晨昇, 陈鸿汉. 2020. 内蒙古废弃钨钼矿区周围土壤重金属污染生态环境评价及成因分析[J]. 中国地质, 47(6): 1838-1852. http://geochina.cgs.gov.cn/geochina/article/abstract/20200619?st=search
徐争启, 倪师军, 庹先国, 张成江. 2008. 潜在生态危害指数法评价中重金属毒性系数计算[J]. 环境科学与技术, 31(2): 112-115. https://www.cnki.com.cn/Article/CJFDTOTAL-FJKS200802029.htm
杨敏, 滕应, 任文杰, 黄阳, 徐德福, 傅赵聪, 马文亭, 骆永明. 2016. 石门雄黄矿周边农田土壤重金属污染及健康风险评估[J]. 土壤, 48(6): 1172-1178. https://www.cnki.com.cn/Article/CJFDTOTAL-TURA201606016.htm
余嘉衍, 李冰玉, 周一敏, 李永杰, 雷鸣. 2020. 湖南省某矿遗址周围农业土壤重金属污染及风险评价[J]. 环境化学, 39(4): 1024-1030. https://www.cnki.com.cn/Article/CJFDTOTAL-HJHX202004018.htm
余璇, 宋柳霆, 滕彦国. 2016. 湖南省某铅锌矿土壤重金属污染分析与风险评价[J]. 华中农业大学学报, 35(5): 27-32. https://www.cnki.com.cn/Article/CJFDTOTAL-HZNY201605004.htm
张进德, 田磊, 裴圣良. 2021. 矿山水土污染与防治对策研究[J]. 水文地质工程地质, 48(2): 157-163. https://www.cnki.com.cn/Article/CJFDTOTAL-SWDG202102019.htm
张浙, 卢然, 伍思扬, 贾智彬, 王宁. 2022. 长江经济带矿山土壤重金属污染及健康风险评价[J]. 环境科学, 43(7): 3763-3772. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ202207037.htm
张遵遵, 蔺东永, 于玉帅, 卢友月, 付建明, 李剑锋, 秦拯纬, 马丽艳, 宁勇云, 张吉梼. 2022. 南岭成矿带大义山藤山坳锡矿床花岗岩成因及锡成矿作用的指示[J]. 华南地质, 38(3): 441-458. https://www.cnki.com.cn/Article/CJFDTOTAL-HNKC202203007.htm
中华人民共和国生态环境部. 2018. 土壤环境质量农用地土壤污染风险管控标准(试行)(GB 15618-2018)[S]. 北京: 中国环境科学出版社.
中华人民共和国生态环境部. 2019. 建设用地土壤污染风险评估技术导则(发布稿)(HJ 25.3-2019)[S]. 北京: 中国环境科学出版社.
周楠. 2016. 湖南省某尾矿库周边农田土壤和农作物重金属污染及健康风险评价[D]. 衡阳: 南华大学.
-