| 窟野河流域中游煤矿区地下水质量及补给来源研究 |
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| 引用本文： | 付昌昌,李向全,马剑飞,高明,刘玲霞,白占学.窟野河流域中游煤矿区地下水质量及补给来源研究[J].水文,2018,38(6):42-47. |
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| 作者姓名： | 付昌昌 李向全 马剑飞 高明 刘玲霞 白占学 |
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| 作者单位： | 中国地质科学院水文地质环境地质研究所 |
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| 基金项目： | 中国地质调查局项目(DD20160296)； |
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| 摘 要： | 为查明神东矿区地下水质量状况和补给来源,分析测试了不同含水层(第四系松散层、白垩系洛河组、侏罗系直罗组和延安组含水层)的一般化学指标、毒理学指标和环境同位素(D、18O、3H)的值,利用环境同位素(D、18O、3H)分析该区地下水的补给来源和更新能力,利用单指标综合评价和影响因素识别相结合的方法研究了区内地下水的质量现状和影响因素,采用四步法计算出毒理学指标的饮水途径健康风险值。结果表明:(1)第四系松散层地下水、白垩系洛河组地下水和侏罗系风化带水主要为现代大气降水补给,更新快。侏罗系深层基岩裂隙水主要为晚更新世冰期降水补给,与现代降水基本无水力联系;(2)侏罗系延安组地下水水质较差,Ⅳ-Ⅴ类水所占比例较高,达到47.9%,其他含水层地下水水质较好。总体上,对Ⅳ-Ⅴ类水单指标贡献率较大的指标为钠氟化物TDS氯化物硫酸盐;(3)毒理学指标中氟化物的健康风险值最大,其他毒理学指标健康风险基本都在可接受范围内。因此,氟化物应作为水污染监测和防治中的优先控制物。本次研究成果将为矿区水源地的选择和污染物防控提供科学依据。
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| 关 键 词： | 神东矿区 地下水质量 环境同位素 补给来源 |
| 收稿时间： | 2018/2/9 0:00:00 |
Groundwater Quality Assessment and Recharge Sources of Groundwater in Coal MiningArea of Kuye River Basin |
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| FU Changchang,LI Xiangquan,MA Jianfei,GAO Ming,LIU Lingxi,BAI Zhanxue.Groundwater Quality Assessment and Recharge Sources of Groundwater in Coal MiningArea of Kuye River Basin[J].Hydrology,2018,38(6):42-47. |
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| Authors: | FU Changchang LI Xiangquan MA Jianfei GAO Ming LIU Lingxi BAI Zhanxue |
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| Institution: | Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China |
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| Abstract: | To identify the groundwater quality and recharge sources from different aquifers (including Quaternary aquifers, CretaceousLuohe aquifer, Jurassic Zhiluo and Anding aquifer, Jurassic Yanan aquifer) in Shendong mining areas, the samples were collectedand analyzed for the general chemical index, toxicological index and Environmental isotopes (D, 18O, 3H). Environmental isotopes (D,18O, 3H) of various aquifers in conjunction with the regional hydrological geological settings were conducted to identify the groundwaterrecharge sources. Then, through the conjunctive use of the single factor comprehensive evaluation and the identification factor,the current status of groundwater quality was identified. The human health risk of toxicological index was also assessed by themodel which was recommended by the U.S. environmental protection agency (USEPA). The results show: (1) Groundwater from Quaternaryaquifers, Cretaceous Luohe aquifer and shallow Jurassic pore-fissure aquifers are directly supplied by modern atmosphericprecipitation, which result in a strong renewal ability. Conversely, the deep Jurassic fracture fissure water are mainly formed duringlate Pleistocene and have barely connection with modern precipitation. (2) The groundwater quality of Jurassic Yanan aquifer ispoor, showing that IV-V class groundwater accounted for 47.9%. Water quality of other aquifers is generally good. According toIV-V class groundwater, Na+>Fluoride>TDS>Chloride>Sulfate are the main influence factors. (3) Among the toxicological indexes,Fluoride has the highest health risk with 18.6% samples exceeded the limit of 1×10-6 a-1 and the health risk of other toxicologicalindexes are generally within the acceptable limit. Thus, fluoride is the primary control index for environmental health risk management.This study would provide scientific advice for the select and protection of groundwater source site in Shendong mining area. |
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| Keywords: | Shendong mining area groundwater quality environmental isotopes groundwater sources |
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