胶州湾潮间带和沿岸区硫酸盐还原菌含量分布

用 Ｍ Ｐ Ｎ 法对胶州湾潮间带和沿岸区的硫酸盐还原菌（ 缩写为 Ｓ Ｒ Ｂ） 含量作了研究，结果表明表层沉积物的 Ｓ Ｒ Ｂ 含量大约是４１ ×１０７ 个细胞／ｇ ，波动范围较大。水中的 Ｓ Ｒ Ｂ 含量约２５ ×１０２／ｍｌ。分析了 Ｓ Ｒ Ｂ 含量的分布状况，发现调查区内的 Ｓ Ｒ Ｂ 含量基本上呈现出北高南低、西高东低之势，即工业区、港口区的高于海水浴场、海滨旅游区的。证实了生活废弃物的排放致其环境 Ｓ Ｒ Ｂ 含量特高。 Ｓ Ｒ Ｂ 含量分布状况大体上与以往所测环境污染状况一致。对虾养殖池的 Ｓ Ｒ Ｂ 含量意味着水产养殖必须考虑这一因子的作用     

推导保护水生环境质量标准的方法研究

综述了美国及欧洲一些国家推导水生环境质量标准的方法研究。对水生环境质量标准包括的水质标准，底泥标准，人类和野生生物标准进行了分别叙述，详细讨论了推导水生环境质量标准的数据要求和计算方法。     

云南安宁工业区工业经济-水资源-水污染系统仿真模型及策略分析

水资源短缺和水污染是安宁工业区经济发展的重要限制因素。本文将该工业区分解为3个子区,应用系统动态学方法,建立多区相关的工业经济-水资源-水污染系统仿真模型,分别对各子区1985至2000年的工业产值、工业用水差距和水质进行多方案预测。在子区域综合的基础上,结合多级决策树法,筛选出安宁工业区协调工业经济、水资源和水质之间关系的最佳方案。     

Successful DNA-based prenatal exclusion of juvenile neuronal ceroid lipofuscinosis

A family with two siblings, 10 and 8 years old, both with clinical and ultrastructural evidence of juvenile neuronal ceroid lipofuscinosis is described. The family was found to be informative for the restriction fragment length polymorphisms (RFLPs) detected by the probes pCJ52–95Ml (locus D16S148) and pCJ52-94Tl (locus D16S159) flanking the juvenile neuronal ceroid lipofuscinosis locus, CLN3. The parents were both heterozygous using these probes, while their two children with juvenile neuronal ceroid lipofuscinosis were both homozygous. Chorionic villi analysis showed that the fetus was heterozygous and had inherited the one allele of the mother which was not found in the two siblings. This suggested that the fetus had derived one healthy allele from the mother, the risk for a double crossing-over being less than 1 per cent. Electron microscopy showed no fingerprint inclusions in chorionic villi. The child was investigated at 6 months of age and found to be healthy, as new fingerprint inclusions were found at electron microscopy and no vacuolated lymphocytes were found in the blood smear. Due to the risk of heterogeneity, both DNA-based analysis and electron microscopy on chorionic villi are recommended for prenatal examination for juvenile neuronal ceroid lipofuscinosis.     

characteristics of PM2.5 in rural areas of southern Jiangsu Province, China

Introduction Anumberofstudiesabroadhavedemonstratedthat atmosphericfineparticulatematter(PM2.5,dp<2.5μm)is notonlyassociatedwithatmosphericvisibilityreductionbut alsohasaclearcorrelationwiththenumberofdailydeathsandhospitalizationsasaconsequenceofpulmonarydisease(Chan,1997;Christoforous,2000;Schwartz,1996;Wilson,1997).On18July,1997,theU.S.EnvironmentalProtectionAgency(USEPA)promulgatednewandsevere standardsforfineparticulates(PM2.5)withthesizebelow2.5μm(15μg m3asannualaverage,65μg m…     

水解酸化─厌氧─好氧─混凝─吸附工艺处理洁霉素生产丁提高浓度有机废水

采用水解酸化厌氧好氧混凝吸附工艺处理洁霉素生产丁提高浓度有机废水，工程实践表明，ＣＯＤＣｒ和ＢＯＤ５去除率在９９％以上，所排废水各项指标达到国家排放标准。     

油品储运过程挥发损耗测算与分析

通过对燕化公司油品储运情况的调查，测算其油品储运过程中的挥发损耗，并提出了有关的防治措施。     

安徽月山地区闪长岩类地质地球化学研究

安徽月山地区是长江中下游地区的重要成岩-成矿区段。本文通过岩石学、岩石化学和同位素地球化学等方面的研究，探讨和阐明了月山地区闪长岩类的形成环境、物质来源、源区特征、岩浆形成与演化机理等。     

机车检修污水处理回用设施实例分析

机车清洗污水经撇油、酸碱中和、气浮、过滤、活性碳吸附等工艺流程的处理后,进行全封闭循环,再用于清洗机车,合理选择污水处理工艺流程是确保处理后的污水能否经济、合理回用的关键.     

全封闭垃圾焚烧空气污染影响与控制措施

以大坦沙资源电厂为研究对象 ,通过对全封闭垃圾燃烧、污染物去除、废气高空排放工艺流程分析以及运用列举法和大气扩散数学模式对全封闭垃圾焚烧厂的污染影响与控制进行了探究 ,提出了有关垃圾焚烧空气污染防治对策和建议 ,为垃圾焚烧处理提供参考