乌鲁木齐市噪声监测现状、问题及对策

简要介绍了乌鲁木齐市噪声环境监测工作的现状,在主城区选择了具有代表意义的点位,采用"定点监测法"与"普查监测法"进行监测,对影响乌鲁木齐市声环境质量的生活噪声、交通噪声、工业噪声和建筑施工噪声做了定点或连续(24h在线)监测。就存在的问题做了分析探讨,并提出了相应的对策建议,以期为进一步改进乌鲁木齐市噪声监测和管理提供参考。     

Modeling the chemical and toxic water status of the Scheldt basin (Belgium), using aquatic invertebrate assemblages and an advanced modeling method

Self-Organizing Maps have been used on monitoring sites in several Scheldt sub-basins to identify the main aquatic invertebrate assemblages and relate them to the physico-chemical and toxic water status. 12 physico-chemical variables and 2 estimates of toxic risk were available for a dataset made up of a total of 489 records. Two of the five defining clusters reflecting a relatively clean environment were composed by very well diversified functional feeding groups and sensitive taxa. The cleanest assemblage was mainly linked to the sites from the Nete sub-basin. The three other clusters were inversely described with a dominance of oligochaetes and deposit feeders as well as a bad water quality.Such an analysis can be used to support ecological status assessment of rivers and thus might be useful for decision-makers in the evaluation of chemical and toxic water status, as required by the EU Water Framework Directive.     

我国的农业面源污染及改善对策探讨

阐述了农业面源污染的主要来源及危害,指出农业面源污染是当前农业可持续发展的主要障碍之一。由于我国农村过量和不合理地使用农药、化肥、地膜等,造成了农业面源不同程度的污染,给农业生产和农民生活带来了隐患,直接关系到农业可持续发展,应该采取有效措施加以解决。     

基于微电荷法的烟气颗粒物浓度检测技术及其应用

目前针对烟气颗粒物浓度的检测方法较多,但均存在不足。详细分析了基于微电荷法的烟气颗粒物浓度检测技术的基本原理和关键的技术难点,介绍了由于微处理器、数字电子技术和材料科学等的飞速发展带来的技术革新,技术的进步为其应用开拓了更为广泛的应用领域并逐步在工业场合得到推广。     

上海火电厂烟气脱硫现状分析与建议

介绍了上海火电厂烟气脱硫的现状,对脱硫工艺选择、脱硫效率进行了分析。阐明了我国烟气脱硫普遍选用的石灰石一石膏湿法脱硫的特点和局限性,探讨了建立SO2排污权交易制度的必要性和可行性,分析了烟气脱硫装置存在的问题及预防措施。     

“5·12”汶川地震灾区典型区域生态环境状况影响评价

“5·12”汶川特大地震发生后。带来的植被破坏、水土流失、次生地质灾害等,给灾区生态环境造成了极大的影响。本文重点以汶川县作为典型区域,运用“3S”技术,通过对汶川县震前、震后的生态环境状况及其变化情况进行定量评价。分析“5·12”大地震对龙门山区生态环境的影响,以期为区域灾后重建提供参考。     

中国环境管理干部学院教师健康现状的动态分析

主要采用调查法、访问法等,对中国环境管理干部学院教师健康现状进行了调查研究,并根据教师每周参加体育活动情况,教师经常参加体育活动内容及地点,教师的闲暇时间与体育支出,学院教师体检等情况,建议我院教师注重身体健康,增强健身意识,建议学院为教职工的健康工作和生活创造健身条件和环境。     

铁碳微电解法在废水处理中的研究进展及应用现状

介绍了铁碳微电解法处理废水的作用机理,概述了近10年来国内外利用铁碳微电解法及其组合工艺对印染、造纸、焦化、炸药、制药等废水处理方面的研究进展及实际的应用状况.提出了铁碳微电解法在运行过程中存在的几个问题,并对今后研究工作的大体方向做了初步的探讨.     

我国安全专业人员职业化建设现状与分析

我国安全生产形势严峻的深层原因在于安全专业队伍的数量不足、素质不高。有关安全专业人员执业资格的部门规章和地方法规不仅存在交叉,而且法律效力低,这导致许多取得注册安全工程师执业资格安全专业人员在企业得不到重视和重用。参照发达国家和地区安全专业执业资格制度取得的效果和启示,本文提出了实施人才兴安战略的几点对策建议。     

Quantity and biochemical composition of sedimentary organic matter around offshore gas extraction platforms of the Adriatic Sea

Gas platforms can exert relevant effects on various ecosystem properties of the hosting area, modifying patterns of productivity and particle sedimentation. We hypothesised that the presence of gas platforms is associated with higher organic matter (OM) contents and we tested the null hypothesis by which benthic trophic conditions do not vary significantly among gas structures with different architectural characteristics. To test these hypotheses, we investigated sedimentary OM contents and biochemical composition at increasing distance from two distinct structures: one subsea well-site and one four-leg platform (FLP). We found that sediments surrounding the structures were characterised by similar OM contents, but different biochemical compositions, and that sedimentary OM compositional change with increasing distance from the structure is confirmed only at the FLP. These results suggest that: (i) benthic eutrophication is not consistent among different structures; (ii) OM biochemical composition changes are more evident than those in OM quantity; and (iii) the effect, wherever present, disappears at a very narrow distance from the platform. As biochemical composition of OM reflects food availability for benthic organisms, our results suggest that the enrichment of macrozoobenthic communities around these structures could be the consequence of increased nutritional quality of resources.