云南省水环境状况及问题分析

根据2000年云南省主要河流水质监测评价结果，全省评价河段总长9280km中，水质为Ⅰ－Ⅲ类的河长占76．3％，总体上，云南省内各大水系水质良好，但水污染总体上正在加重，从1985－2000年，Ⅰ类河长年均减少2．3％，V类河长年均增长0．6％，废污水直接排入江河是引起污染的重要原因。水环境问题已成为社会经济可持续发展的关键问题，要切实加强水资源的保护，科学地开发利用水土资源，为了有效地改善水环境的质量，污染控制应从源头开始并采取综合治理措施。     

黄浦江上游水源地突发性水污染事故应急处置预案探讨

阐述了水源地突发污染事件的概念、特点及其对于供水安全和城市经济社会系统安全运行的重要意义.论述了城市水源地突发污染事件应急研究的主要内容;以上海市黄浦江上游水源地为例,探讨了突发性污染事件应急处置体系的构建,并提出了相应的政策建议。     

钢材的制造加工与环境保护

钢铁产品在生产、加工过程产生废水、废气、废渣，对环境产生污染。应在保护环境的基础上发展生产，走绿色工业的道路。     

宁波港、舟山港石油类海洋环境的污染与防治

介绍了宁波港、舟山港石油类海洋环境污染物的来源情况，其污染源来自石油库、港口、油轮事故、污油和含油污水的排放以及船舶修理、船舶清洗等。石油类海洋污染会使海产品大大减少，危及人类的食物来源。为此，提出了要加强环境保护宣传，在油库集中的地方，以大型油库为依托，对含油污水作集中处理，建立油轮突发事故应急处理体系，并定期预演等防治海洋石油类污染的建议。     

银川市室内环境空气污染现状及治理措施的初探

本文通过对银川市室内环境空气污染现状的调查与检测,阐述了室内环境空气污染的来源及危害,提出了污染治理措施。     

煤矿污染防治技术群及其评价

通过对枣庄矿区污染防治工作的调查研究，分析了煤矿开采对环境的影响，总结出当前煤矿污染防治的适用技术群，井对其相关问题进行评价。     

Investigation of Boundary Shear Stress and Pollutant Detachment from Impervious Surface during Simulated Urban Storm Runoff

Pollutant detachment rates have been determined for four chloride salts during simulated urban storm runoff. Under rainfall and/or overland flow conditions, chloride mass flux was measured and related to boundary shear stress of the test surface. Washoff coefficients, presumed to depend only on pollutant characteristics, were computed based on the slopes of dimensionless mass flux versus dimensionless time plots. Washoff coefficients were found to vary among and between the chloride compounds studied. In general, higher overland flow rates produced lower boundary shear and lower washoff coefficients. The combination of simulated rainfall and overland flow resulted in an increased boundary shear and an increased washoff coefficient. An empirical washoff coefficient based on a load characteristic curve derived from an exponential washoff relationship was also computed from the runoff data and compared with the previous washoff coefficient. A linear correlation between these two washoff coefficients was observed. The magnitude of the latter coefficient under simulated rainfall was consistent with reported values obtained from field data.     

液化石油气"溢出"的危害及对策

对液化石油气的性质及危险进行了论述,分析了液化石油气溢出后对人员及设备的危害,提出了阻止蔓延、排除下风向火源等减轻灾害的对策。     

影响钢铁工业主要环境因素及其控制措施

针对钢铁工业的环境因素的影响 ,采取针对性措施控制 ,合理利用 ,清洁生产。     

Contamination of the Chalk Aquifer by Chlorinated Solvents: A Case Study of the Luton and Dunstable Area

A detailed investigation of contamination by chlorinated solvents of the Chalk Aquifer underlying the towns of Luton and Dunstable was undertaken to assess the extent, causes and mechanisms of pollution. The research programme incorporated land-use surveys, regional groundwater surveys, monitoring of groundwater abstraction points and aquifer profiling by means of the drilling of observation boreholes, the analysis of the recovered core material and the depth sampling of these and other boreholes.
Low-level solvent contamination of the Chalk Aquifer was found to be widespread with 'hotspots'of higher concentrations. At the drilling sites, both the saturated and unsaturated zones were contaminated with solvents, although free product was not observed. The presence of an additional contaminant, oil, at some sites was noted to influence the distribution of solvents within the aquifer.
Clean-up of the aquifer is not a practical option, and treatment of the groundwater at the abstraction points has been adopted.