湖南省某矿遗址周围农业土壤重金属污染及风险评价
Pollution and risk assessment of heavy metal in agricultural soil around an abandon mine site in Hunan Province
-
摘要: 为了进一步了解湖南省某矿遗址周围农田土壤重金属的风险，在该矿遗址附近两个区域（Ⅰ区、Ⅱ区）采集125个农业土壤样品，分析其中重金属（As、Cd、Cr、Cu、Pb）的含量，运用综合污染评价法、潜在生态指数法和地积累指数法对其开展风险评估.结果表明，Ⅰ区农田土壤中As和Cd的含量比国家风险管控标准值高，属于中度污染土壤，存在着极高的潜在生态风险；地积累指数进一步指出Ⅰ区土壤中As污染属于二级污染、Cd污染属于四级污染.Ⅱ区农田土壤，除Cd的含量相对较高外，其它重金属含量均很低，该区域土壤重金属的综合污染评价值低于1.0.但是由于Ⅱ区土壤中Cd的地积累指数为1.92，表明Ⅱ区土壤受到Cd的轻度污染，存在一定的潜在风险.Abstract: To evaluate the risk of heavy metals pollution from arable soils in an abandon mine area in Hunan Province. Heavy metal contents (As, Cd, Cr, Cu, and Pb) in 125 agricultural soil samples collected from two investigation zones (named I and Ⅱ, respectively) around the mine area were analyzed. Three different risk assessment methods, including a comprehensive pollution assessment method, potential ecological index method and index of geo-accumulation (Igeo) were employed in the present study. According to the national risk management standards (NRMS) in farmland soils, the pollution status of As and Cd in the zone I was severe compared with zone Ⅱ, and the contamination status was conformed to the moderate pollution which indicated that the soils from zone I has a high potential ecological risk. Moreover, the Igeo values of heavy metals demonstrated that As and Cd pollution in the zone I are associated with secondary-grade pollution and fourth-grade pollution, respectively. As for zone Ⅱ, except for the relatively high content of Cd, the contents of other heavy metals (As, Cr, Cu, and Pb) were lower than the NRMS in agricultural soils. The comprehensive pollution evaluation value of heavy metals in zone Ⅱ was less than 1.0. However, the Igeo value of Cd in the soil of zone Ⅱ was 1.92, which indicated that the soil in zone Ⅱ is slightly polluted by Cd with a certain potential risk.
-
Key words:
- abandon mine site /
- agricultural soil /
- heavy metal /
- risk assessment /
- ecological risk /
- Hunan Province
-
-
[1] WEN H, ZHANG Y, CLOQUET C, et al. Tracing sources of pollution in soils from the Jinding Pb-Zn mining district in China using cadmium and lead isotopes[J]. Applied Geochemistry, 2015, 52(3):147-154. [2] 王金霞, 李谢玲, 何清明, 等三峡库区典型农业区土壤重金属污染特征及风险评价[J]. 农业工程学报,2018, 34(8):235-242. WANG J X, LI X L,HE Q M, et al. Characteristics and risk assessment of soil heavy metal pollution in typical agricultural areas of the Three Gorges Reservoir Area[J]. Journal of Agricultural Engineering,2018, 34(8):235-242(in Chinese).
[3] ZHU D, WEI Y, ZHAO Y, et al. Heavy metal pollution and ecological risk assessment of the agriculture soil in Xunyang Mining Area, Shaanxi Province, Northwestern China[J]. Bulletin of Environmental Contamination & Toxicology, 2018:1-7. [4] YAO D X, MENG J, ZHANG Z G, et al. Heavy metal pollution and potential ecological risk in reclaimed soils in Huainan mining area[J]. International Journal of Coal Science & Technology, 2010, 16(3):316-319. [5] QIN F, WEI C, ZHONG S, et al. Soil heavy metal(loid)s and risk assessment in vicinity of a coal mining area from Southwest Guizhou, China[J]. [6] 梁雅雅, 易筱筠, 党志, 等某铅锌尾矿库周边农田土壤重金属污染状况及风险评价[J]. 农业环境科学学报, 2019, 38(1):109-116. LIANG Y Y,YI X W, DANG Z, et al. Heavy metal pollution status and risk assessment of farmland around a lead-zinc tailings pond[J]. Journal of Agricultural Environment Science, 2019, 38(1):109-116(in Chinese).
[7] 王玉军, 刘存, 周东美, 等. 客观地看待我国耕地土壤环境质量的现状——关于《全国土壤污染状况调查公报》中有关问题的讨论和建议[J]. 农业环境科学学报, 2014, 33(8):1465-1473. WANG Y J, LIU C, ZHOU D M, et al. Objectively viewing the status quo of soil environmental quality in china's cultivated land——Discussion and suggestions on relevant issues in the national soil pollution status survey bulletin[J]. Journal of Agro-Environment Science, 2014, 33(8):1465-1473(in Chinese).
[8] 曾敏, 廖柏寒, 曾清如, 等. 湖南郴州、石门、冷水江3个矿区As污染状况的初步调查[J]. 农业环境科学学报, 2006, 25(2):418-421. ZENG M, LIAO B H ZENG Q R, et al. Preliminary Investigation of As pollution status in three mining areas of Chenzhou, Shimen and Lengshuijiang in Hunan Province[J]. Journal of Agro-Environment Science, 2006, 25(2):418-421(in Chinese).
[9] 杨敏, 滕应, 任文杰,等. 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, 2016, 48(6):1172-1178. YANG M, TENG Y, REN W J, et al. Heavy metal pollution and health risk assessment of farmland around Shimen realgar mine[J]. Soil, 2016, 48(6):1172-1178(in Chinese).
[10] 李莲芳, 曾希柏, 白玲玉,等. 石门雄黄矿周边地区土壤砷分布及农产品健康风险评估[J]. 应用生态学报, 2010, 21(11):2946-2951. LI L F, ZENG X B, BAI L Y, et al. Soil arsenic distribution and health risk assessment of agricultural products in the vicinity of Shimen realgar mine[J]. Chinese Journal of Applied Ecology, 2010, 21(11):2946-2951(in Chinese).
[11] 杨潇瀛, 张力文, 张凤君,等. 土壤重金属污染潜在风险评价[J]. 世界地质, 2011, 30(1):103-109. YANG X Y, ZHANG W L, ZHANG F J, et al. Potential risk assessment of heavy metal pollution in soil[J]. 2011, 30(1):103-109(in Chinese).
[12] 舒国文. 湖南石门雄黄矿的地质特征及外围成矿预测研究[D]. 长沙:中南大学, 2006. SHU G W. Geological characteristics and peripheral metallogenic prediction of Shimen Xionghuang Mine, Hunan Province[D]. Changsha:Central South University, 2006(in Chinese). [13] HAKANSON L. An ecological risk index for aquatic pollution control.a sedimentological approach[J]. Water Research, 1980, 14(8):975-1001. [14] 李藜, 宋波, 陈同斌,等. 广西西江流域土壤铜含量状况调查与风险评估[J]. 自然资源学报, 2018, 33(4):644-656. LI W, SONG B, CHEN T B, et al. Investigation and risk assessment of soil copper content in Xijiang River basin of Guangxi[J]. Journal of Natural Resources, 2018, 33(4):644-656(in Chinese).
[15] 陈惠芳, 李艳, 吴豪翔,等. 富阳市不同类型农田土壤重金属变异特征及风险评价[J]. 生态与农村环境学报, 2013, 29(2):164-169. CHEN H F, LI Y, WU H X, et al. Variation characteristics and risk assessment of heavy metals in different types of farmland soils in Fuyang City[J]. Journal of Ecology and Rural Environment, 2013, 29(2):164-169(in Chinese).
[16] FORSTNER U,AHIF W,CALMANO W,et al.1990.Sediment criteria develop-ment contrbutions from environmental gcochemistry to water quality. management//In:Heling D.Rothe P,Forstner U,et al(eds).Sedements and environmental geochemistry:Selected aspects andcase histories[C]. Berlin Heidelberg:Springer-Verlag, 1990:311-338. [17] ZHANG Y, ZHOU J, GAO F J, et al. Comprehensive ecological risk assessment for heavy metal pollutions in three phases in rivers[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(10):3436-3441. [18] WILDING L.Spatial variability:Its documentation,accommodation and implication to soil surveys[M].In Soil spatial variability,Nielsen D.R,Bouma J(Eds).Pudoc:Wageningen,1985:166-194. [19] 王永豪, 李晓勇. 土壤重金属污染风险评价的研究进展[J]. 农村经济与科技, 2017, 28(1):23-24. WANG Y H, LI X Y. Research progress in risk assessment of soil heavy metal pollution[J]. Rural Economy and Technology, 2017, 28(1):23-24(in Chinese).
[20] 王振刚, 何海燕, 严于伦, 等. 石门雄黄矿附近地区慢性砷中毒流行病学特征[J]. 环境与健康杂志, 1999, 16(1):4-6. WANG Z G HE H Y, YAN Y L, et al. Epidemiological characteristics of chronic arsenic poisoning in the vicinity of Shimen and Huanghuang Mine[J]. Journal of Environment and Health, 1999, 16(1):4-6(in Chinese).
[21] 陈同斌, 杨军, 雷梅, 等. 湖南石门砷污染农田土壤修复工程[J]. 世界环境, 2016(4):57-58. CHEN TB, YANG J, LEI M, et al. Soil remediation engineering of arsenic contaminated farmland in Shimen, Hunan Province[J]. World Environment, 2016 (4):57-58(in Chinese).
[22] [23] 张晓逵. 山西、河南部分煤中重金属元素的含量及其赋存形态研究[D]. 焦作:河南理工大学, 2010. ZHANG X Q Study on the content and occurrence of heavy metal elements in some coals in Shanxi and Henan[D]. Jiaozuo:Henan Polytechnic University, 2010(in Chinese). [24] WANG T, ZHANG F, WANG H, et al. Spatial distribution and ecological risk assessment of heavy metals in soils of the Hun River Alluvial-plain Fan in Shenyang, Liaoning, China[J]. Journal of Food Agriculture & Environment, 2013, 11(3):1606-1610. [25] 王冠星, 闫学东, 张凡,等. 青藏高原路侧土壤重金属含量分布规律及影响因素研究[J]. 环境科学学报, 2014, 34(2):431-438. WANG G X, YAN X D, ZHANG F, et al. Distribution and influencing factors of heavy metal content in the soil on the Qinghai-Tibet Plateau[J]. Chinese Journal of Environmental Science, 2014, 34(2):431-438(in Chinese).
[26] 张江华, 赵阿宁, 王仲复, 等. 内梅罗指数和地质累积指数在土壤重金属评价中的差异探讨——以小秦岭金矿带为例[J]. 黄金, 2010, 31(8):43-46. ZHANG J H, ZHAO A N, WANG Z F, et al. Discussion on the difference of Nemero index and geological accumulation index in soil heavy metal evaluation——Taking the Xiaoqinling gold belt as an example[J]. Gold, 2010, 31(8):43-46(in Chinese).
[27] 秦顺超, 张焕祯, 郭伟, 等. 土壤重金属污染评价方法研究进展//环境工程2018年全国学术年会[C]. 2018. QIN S C, ZHANG H Z GUO W, et al. Research progress in soil heavy metal pollution assessment methods//Environmental Engineering 2018 National Academic Conference[C].2018 (in Chinese).
[28] 宋恒飞, 吴克宁, 刘霈珈. 土壤重金属污染评价方法研究进展[J]. 江苏农业科学, 2017(15):11-14. SONG H F, WU K N, LIU P J. Research progress in evaluation methods of soil heavy metal pollution[J]. Jiangsu Agricultural Sciences, 2017 (15):11-14(in Chinese).
[29] 张芬. 我国土壤环境质量评价现状[J]. 绿色科技,2016(4):116-117. ZHANG F. The status quo of soil environmental quality assessment in China[J]. Green Technology, 2016 (4):116-117(in Chinese).
-
点击查看大图
计量
- 文章访问数: 2147
- HTML全文浏览数: 2147
- PDF下载数: 54
- 施引文献: 0
下载:
