津巴布韦因西扎地区的菲拉布斯河床开采：小型人工采矿的可持续性发展模式

河床开采计划位于因西扎地区的菲拉布斯小镇附近,地处津巴布韦西南部的布拉瓦约东南方大约100公里的地方.1990年代中期,这个示范工程由已故的Jurgen G.Voss教授和他的“津巴布韦大学采矿工程与冶金学系”的工作人员发起,资金支持则由德国技术援助集团(GTZ)提供.     

西亚的备选水资源管理政策

即使采取方案，包括增加供应以及需求管理和保护政策，预计西亚将来还是会缺水，由于该地区的水资源非常有限，把规划，机构改革，经济手段，保护措施和实施具体项目结合起来或许可以实现长期可持续供应。     

内在安全的生产，对清洁生产的一种正常的补充

内在的安全性，是一种利用没有毒性、可燃性或不稳定性的工艺与材料的方法，它通常被认为是化工厂设计的一个重要概念。受到清洁生产成功发展的鼓舞，进行了一项类似的有关内在安全生产的发展可行性研究。在1997-1998年进行的初步试验案例中，发展并检验了一个产生内在安全的技术选择的方法论，该研究表明，大部分选择的偿还时间少于两年，而且内在安全的生产是一个可行的概念，有可能同时产生巨大的安全与经济成效的改善，并且可以结合进清洁生产计划。     

A preliminary study of the phycological degradation of natural stone masonry

For many years it has been realised that the weathering of stone is not merely determined by physical and chemical factors but also by biological agents. When the stone in question is a historic building or monument, the damage done constitutes an irretrievable loss of our heritage and history. Laboratory studies have commenced in Paisley to study the effect of photoautotrophs on the major sedimentary rock forming minerals, with a view to expanding this work to study the overall effect of these micro-organisms on heritage masonry. Tests were carried out on Albite, Calcite, Dolomite, Orthoclase, Siderite and Quartz, using axenic cultures of the following: Chlorella vulgaris, Chlorococcum tetrasporum, Scenedesmus obliquus, Oocystis marsonii, Stichococcus bacillaris. The rock chips were immersed in either water or bolds basal media and exposed to a mix of the micro-organisms listed above and then tested weekly for their pH, fortnightly for the waters chemical composition using inductively coupled plasma-atomic emission spectrometry (ICP-AES) and visually utilising the universitys SEM facilities. Work so far has revealed biologically mediated etching of minerals, a well-defined pH profile over a period of 90 days, as well as a variety of elemental release patterns for the different minerals.     

Toxic metals status in human blood and breast milk samples in an integrated steel plant environment in Central India

Owing to its unique nutritional and immunological characteristics, human milk is the most important food source for infants. Breast milk can, however, also be a pathway of maternal excretion of toxic elements. Selected toxic elements (As, Pb, Mn,a Hg and Cd) were determined in human breast milk and blood samples obtained from 120 subjects related to an integrated steel plant environment located in central India. Samples of breast milk and blood from subjects living outside the steel plant environment were also analyzed for comparative study. Higher levels of these toxic elements were found in blood samples as compared to breast milk samples. Plant workers showed the higher presence of these metals in their breast milk and blood samples compared to the residents of the area and the subjects living outside the industrial environment, respectively. Mn, Pb and Hg have shown a higher tendency to associate with blood and breast milk than As and Cd. The order of occurrence of these metals in blood and milk samples thus found is Mn > Pb > Hg > As > Cd.     

巴西中小企业的清洁生产挑战

微型、小型和中型企业创造了巴西的主要财富，但是这些企业却难以遵守环境法律，在这种情况下，清洁生产意义重大；它使得应用简便、廉价、持续的解决方案帮助小企业减少其环境影响、降低雇员的健康和安全风险成为可能，清洁生产战略通过把中心放在减少浪费和损耗上而改善环境条件，在实施清洁生产措施的同时，对一些措施的环境效率和经济可行性进行评估，采用最多的是良好的内务管理等简便措施，良好的内务管理包括业务参数的最优化、程序的标准化、改进买卖系统以及维护、信息和培训程序的最优化，巴西良好的内务管理战略所占的优势表明了对低成本解决方案的优先选择。     

印度露天采矿的回填要求和制约因素

印度的大多数采矿活动都发生在生态敏感地区。本文讨论了一项回填（即用挖出来的物质填矿井）研究计划的结果。在一些情况下，由于技术限制，回填法的使用不得不被部分或全部放弃，也有许多费用方面的考虑。制定一条国家改造采矿用地战略是最根本的策略。