首都副中心及重点区域地下水环境质量评价与问题成因  

Valuation of groundwater environmental quality and causes of problems in the capital sub-center and key regions

作　　者：苗晋杰 靳继红 杜东[1,2] 刘宏伟 白耀楠 张竞 郭旭 MIAO Jin-jie;JIN Ji-hong;DU Dong;LIU Hong-wei;BAI Yao-nan;ZHANG Jing;GUO Xu(Tianjin Center,China Geological Survey,Tianjin 300170,China;Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]华北地质科技创新中心,天津300170 [3]中国地质科学院水文地质环境地质研究所,石家庄050061

出　　处：《地质调查与研究》2020年第3期224-229,286,共7页Geological Survey and Research

基　　金：中国地质调查局项目“京唐秦发展轴主要城镇综合地质调查(DD20190251);国家地质大调查项目非首都功能疏解区1/5万环境地质调查(DD20160230)”。

摘　　要：地下水作为京津冀地区重要的战略水资源和饮用水源,其超采问题和环境质量下降趋势一直未能得到有效遏制,严重危及区域饮用水安全与可持续发展。通州和廊坊北三县作为首都副中心以及首都功能疏解的重点区域,更是面临水资源短缺及质量下降的难题。为阐明人类活动影响下通州和廊坊北三县地下水质量状况,本次研究共采集了482组地下水样品进行测试分析,测试指标包含了无机常规指标以及挥发、半挥发性有机指标,共64项。评价结果显示,研究区地下水质量整体较差,深层地下水质量优于浅层;影响地下水质量的主要为常规无机组分,如溶解性总固体、总硬度、铁、锰、硝酸盐氮等,有机组分超标点较少。在此基础上,讨论了研究区内地下水质量主要影响指标的成因及来源,并提出区域地下水质量防控的对策建议。研究成果可为提升首都副中心及重点区域地下水环境质量管理水平、保障区域饮用水安全提供技术支撑。As an important strategic and drinking water source in the Beijing-Tianjin-Hebei Region,groundwater has not been effectively curbed in its over-exploitation and environmental quality deterioration,which seriously endangers the sustainable development and the safety of drinking water in the region.The Tongzhou and Langfang North three regions,as the sub-center and the key functional area of the capital,are facing the problem of water resources shortage and quality deterioration.In order to investigate the groundwater quality under the influence of human activities in this area,the authors collected 482 groundwater samples for tests and analyses.The results shows that the groundwater quality was generally poor.In comparison,the quality of deep groundwater was better than that of the shallow groundwater.The factors that mainly affect the water quality are the inorganic matters such as the total dissolved solid,total hardness,iron,manganese,and nitrate nitrogen.On this basis,the causes and sources of the main influencing indexes of groundwater quality in the study area are discussed.The countermeasures and suggestions for regional groundwater quality control are also put forward.The research results can provide technical support for improving the groundwater environmental quality management level and ensuring drinking water safety in the capital Sub-center and key region.

关 键 词：通州及廊坊北三县 水文地质 地下水 质量评价 超标因子 

分 类 号：X824[环境科学与工程—环境工程]