共查询到19条相似文献，搜索用时 187 毫秒
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为系统客观的评价地下水饮用水源地的安全状态,基于“驱动力-压力-状态-影响-响应”(DPSIR)框架初步建立备选评价指标,运用专家咨询法对备选指标进行筛选及合理性检验,采用层次分析法确定指标权重,构建地下水饮用水源地安全度综合评价体系。以滹沱河浅层孔隙水水源地为例,确定了包含5个准则层,18个指标的地下水饮用水源地安全评价指标体系。滹沱河浅层孔隙水水源地实例研究表明,准则层中压力系统和状态系统所占权重较大,分别为0.257和0.339;水源地安全度为0.67,尽管处于较安全级别,但非常接近警戒值(0.4~0.6)。通过实例分析可知,筛选的指标具有一定的实用性,可以为评价浅层孔隙水水源地的安全状态及面临的风险提供参考。 相似文献
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根据水源地自然地理概况、水文地质构造、河流洼淀、气候等条件,以及2009年河北省保定监测分中心的实际监测资料,对保定市饮用水源地的地下水水源地埋深变化、地表水水源地供水量变化趋势、水质级别以及水质指数变化进行统计、分析及评价计算,结合保定市饮用水源地现状及供水水源地面临的威胁等提出保护措施与对策,为水源地的长期利用提供参考。 相似文献
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生物发光菌技术在地震灾区饮用水源地水质监测中的应用 总被引：2，自引：0，他引：2
"5.12"汶川地震发生后,利用生物发光菌技术对阿坝州7个县饮用水源地水质进行综合毒性监测。2008年5月28日到2008年6月12日期间的水质监测结果表明,地震对阿坝州饮用水源地水质并未造成严重污染,当地饮用水源水质正常。 相似文献
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根据《饮用水水源保护区划分技术规范》（ HJ/T338-2007）,科学合理地划分隆尧县水源地的保护范围,划分出水源地一级保护区和二级保护区的范围,建立饮用水源地安全管理制度,确保居民饮水安全。 相似文献
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饮用水源地保护工作是一项综合性、系统性工程,涉及面较广。通过对临洮县城区饮用水水源地概况、水质以及城区居民饮用水供水量、需水量进行调查。分析生态环境存在的自然和人工生态不相协调、化肥农药面源污染、山区生态失衡灾害频繁等主要问题,对水源地保护及监督管理进行探讨,并提出相应的应对措施和建议。 相似文献
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以陕西省吴起县为研究对象,通过对水资源现状及问题的分析,阐述了吴起县建设生态县的主要制约因素之一是水资源短缺,提出了合理规划、饮用水源地保护、水污染防治和水资源利用工程等解决水资源短缺问题的对策。 相似文献
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《地下水》2015,(5)
最严格水资源管理考核制度是最严格水资源管理制度体系框架的重要组成部分,也是实行最严格水资源管理的制度保障。采用层次分析法(AHP)对现有考核体系进行评价分析,提出各考核指标在体系中的权重分布。结果表明:在制度建设和措施落实情况分项中,水资源管理责任和考核体系、取水许可管理、地下水管理与保护和水资源管理体制及资金投入机制所占权重较大,水生态系统保护及修复、饮用水源地保护、规划管理及水资源论证也是考核的重要组成部分。水行政主管部门在落实最严格水资源管理制度的工作中,应着重落实水资源管理体系的建设、同时加大地下水与饮用水源地的保护,对当地水资源的有效保护和高效利用具有重要意义。 相似文献
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浅析聊城市城区饮用水源地环境的保护 总被引：3，自引：0，他引：3
对聊城市饮用水源地自然特征、周围环境现状及出现的问题作了简要论述,详细分析了污染成因,根据国家有关法律法规及相关规定,提出了完善政策法规建设、划定保护区、提倡节约用水等治理的措施和建议。 相似文献
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福建省饮用天然矿泉水资源丰富,但主要为偏硅酸型,水源地遍布全省,但规模一般较小,根据我省已鉴定的饮用天然矿泉水资源的基本概况,特点进行总结,并对福建省饮用天然矿泉水资源评价中存在的若干主要问题进行探讨,同时对资源评价,开发提出了建议。 相似文献
13.
Use of fuzzy synthetic evaluation for assessment of groundwater quality for drinking usage: a case study of Southern Haryana,India 总被引：1，自引：0，他引：1
Bhupinder Singh Sudhir Dahiya Sandeep Jain V. K. Garg H. S. Kushwaha 《Environmental Geology》2008,54(2):249-255
A method based on concept of fuzzy set theory has been used for decision-making for the assessment of physico-chemical quality
of groundwater for drinking purposes. Conventional methods for water quality assessment do not consider the uncertainties
involved either in measurement of water quality parameters or in the limits provided by the regulatory bodies. Fuzzy synthetic
evaluation model gives the certainty levels for the quality class of the water based on the prescribed limit of various regulatory
bodies and opinion of the experts from the field of drinking water quality. In this paper, application of fuzzy rule based
optimization model is illustrated with twenty groundwater samples from Sohna town of Gurgaon district of Southern Haryana,
India. These samples were analysed for 15 different physico-chemical parameters, out of them nine important parameters were
used for the quality assessment using fuzzy synthetic evaluation approach. From this study, it has been concluded that all
the water samples are in acceptable category whose certainty level ranges from 44 to 100%. Water from these sources can be
used for the drinking purposes if alternate water source is not available without any health concern on the basis of physico-chemical
characteristics. 相似文献
14.
A hydrogeochemical study was conducted on the groundwater of south Al Madinah Al Munawarah City, Saudi Arabia, to assess the quality of groundwater for drinking and irrigation uses. Groundwater samples have been collected and analyzed for major and some trace constituents from the study area. The nitrate concentration in most groundwater samples of the study area exceeded the safe limits for drinking purposes, whereas the concentrations of phosphate, boron, and trace constituents were below the maximum permissible limit for drinking purposes; Cr in two samples showed high content over the recommended limits of drinking purposes. Uncontrolled abstraction of groundwater in Abar Al Mashi area caused many environmental problems including water resource depletion and contamination. Correlations between chloride and major ions were positive and may be attributed to impact of agricultural activities on groundwater chemistry. Groundwater of the study area was classified into six water types. The chemical water types of groundwater in the study area contain CaHCO3 in the eastern and southeastern parts and NaCl in western and northwestern parts, reflecting different land use characteristics and pollution sources. Piper diagram showed that almost all the samples fall in one zone, indicating similar chemical signature. Groundwater can be used safely for drinking with special treatments to eliminate the effect of increased concentrations of total dissolved solids, nitrate, and chromium. The groundwater of the study area can be used safely for irrigation on clay soil; however, specific crops should be selected according to their salt tolerance. 相似文献
15.
The potable water for the residents of the town of Kolasib in Mizoram state, India, is supplied by the Public Health Engineering
Department (PHED) of the Government of Mizoram without any notable treatment. The source of water is the Tuichhuahen River,
flowing from north to south in the area. Water samples were analyzed for their physicochemical and bacteriological characteristics
in order to obtain the current quality level of the potable water in the twon. The samples were collected from two different
sources, i.e., the supply from the government agency (PHED) and from the naturally occurring springs (tuikhurs). The results
suggest that the water supplied by the PHED is better than that from the tuikhurs; however, the quality of water from both
sources, which are used for drinking and domestic purposes, were found to be more or less within the tolerance limits. 相似文献
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应用吹扫捕集-气相色谱-质谱法测定岩溶地区垃圾渗透液中36种挥发性有机物（VOCs）的含量。获取样品溶液5 mL于吹扫瓶中,利用TELEDYNE TEKMAR型吹扫捕集直接进样,经DB-VRX毛细管色谱柱分离、电子轰击电离（EI）全扫描检测,选择特征离子,再用外标法进行定量测定。结果表明:36种挥发性有机物的质量浓度在1～100 μg·L-1 范围内,与其峰面积呈线性关系,方法检出限在0.03～0.27 μg·L-1 之间,加标回收率在88%～110%之间,相对标准偏差（n=7）在2.32%～6.51%之间。 相似文献
18.
O. N. Omaka O. P. Aghamelu C. A. Ike-Amadi R. C. Ofoezie 《Environmental Earth Sciences》2017,76(9):344
Groundwater samples from three different states of southeastern Nigeria were analyzed for a range of physicochemical parameters and heavy metal constituents in order to determine their potability as drinking water sources. The results indicate that the physicochemical parameters (pH, temperature, TDS, TH, electrical conductivity, Cl?, NO3 ? and SO4 2?) tested for have most of their values fall within the permissible limits given by the Nigerian and World Health Organization standards for drinking water quality. The results also reveal that apart from Cu and Pb the rest of the tested heavy metals (As, Zn, Ni, total Fe, Cd and Mn) recorded values that are significantly above the maximum permissible limits for drinking water purposes and therefore have the potential to cause health impacts for long-term potable use. On the basis of principal component analysis, the sources of the measured chemical constituents are likely to be predominantly geogenic (weathering of soluble minerals in the formations) and partly anthropogenic (industrial effluent, agricultural practices and mining activities). Single-factor ANOVA tests indicated insignificant differences in the datasets within/between states or geological units. Caution or adequate treatment is generally required when utilizing the groundwater from the area for drinking purpose due to the elevated metal concentrations and rating as poor to unsuitable water quality. 相似文献
19.
A method for the detection of bromate and bromide in drinking water by ion chromatography-inductively coupled plasma mass spectrometry (IC-ICP-MS) was developed. The optimized conditions of IC including pH and concentration of the effluent were studied. The results showed that the above two species of bromine were baseline separated within nine minutes under the optimized conditions. The detection limits (S/N=3) of bromate and bromide were 0.23 and 0.12 μg/L, respectively. The RSD (n=6) of the peak areas was 1.2%-3.5%. The method has been successfully applied to the determination of the type bromide in drinking water samples. The recoveries were 95%-109%. The method can be used for the regular analysis of bromate and bromide in real drinking water samples. 相似文献