Self-Selecting Agri-environmental Policieswith an Application to the Don Watershed

We consider a model of regulation for nonpoint source water pollution through non-linear taxation/subsidization of agricultural production. Farmers are heterogenous along two dimensions, their ability to transform inputs into final production and the available area they possess. Asymmetric information and participation of farmers to the regulation scheme put constraints on the optimal policy that we characterize. We show that a positive relationship between size of land and ability may exacerbate adverse selection effects. We calibrate the model using data on a French watershed and we simulate the optimal second-best policy and characterize the allocation of the abatement effort among the producers.Authorship is equally assigned among the different authors.     

关于环境审计问题的探讨

环境审计是政府、社会和公众全方位、多角度参与的审计,是协调社会、经济、人类和环境和谐发展的纽带。针对我国环境污染持续恶化的现状,为保护环境资源、防止环境污染事故的发生,必须加强环境效益审计,加快环境审计信息化建设,发展社会环境审计和内部环境审计,提高环境审计水平,保证环境审计质量,走可持续发展之路。     

化工建设项目环境影响评价中的清洁生产分析

根据化工环评工作的具体特点,对化工建设项目清洁生产分析的必要性和存在问题、评价思路和评价重点以及评价分析方法作了一些粗浅的探讨,认为化工建设项目的清洁生产分析可采用清洁生产审核的基本思路,在工程分析、影响预测、污染防治措施及环境监测与管理等各阶段工作中予以强化,项目清洁生产水平分析可采用定性与定量相结合的评价方法。     

试论城市垃圾的处理与处置

城市垃圾是人类生活必然的副产物,其组成成份和产量与社会经济的发展密切相关。城市垃圾的排放已成为世界各国面临的一大环境问题。许多国家不断采取新措施和新技术来处理和利用城市垃圾;目前广泛采用的方法有土地卫生填埋法、焚烧法和堆肥法。卫生填埋以其规模大、投资少、成本低、污染轻而成为当今世界处置城市垃圾的最佳方法。今后,城市垃圾处理与处置的发展方向是从消极处置转向积极利用,实现城市垃圾处置的减量化、资源化和无害化。     

四川新康温石棉矿床海泡石成分及物性研究

四川新康温石棉矿床中的海泡石，属富镁海泡石变种，其化学成分具有ＳｉＯ２ＭｇＯ、Ｈ２Ｏ含量高，Ａｌ２Ｏ３、Ｆｅ２Ｏ３、ＦｅＯ含量味的特点。物理化学性能测试结果表明：该矿床中海泡石具较好的纤维性质，较高的耐温性能，较大的比表面积和优良的离子交换性能，是一种优异的非金属矿产。     

关于除臭装置开发方向的探讨

文章通过对当前国内外几种除臭装置的设计及处理模式、经济性进行比较,分析了除臭系统的投资、经济效益、社会效益前景、国内进行相关产品开发需解决的难点,以及适于开发的产品类型。     

“污染天堂假说”在中国的检验

外商投资于我国污染产业的分布结构表明外商投资我国污染产业规模较大,有向我国大量转移污染产业,实现本国产业升级换代的倾向。但通过构建产业竞争力系数比值分析,外商清洁密集型产业较污染密集型产业的生产能力更强,比较优势更明显。同时,外商投资污染密集型产业分布结构优于我国整体污染密集型产业分布结构,外商投资对我国整体污染产业具有拉升效应。可见,中国在吸收国外直接投资的过程中并没有成为许多人所认为的“污染天堂”。     

煤基合成油废水处理技术研究

煤基合成油废水通常采用生物处理,但出水COD与色度难以达到排放标准。提出"两级好氧+混凝沉淀+臭氧氧化"工艺技术,以提高COD和色度的去除率。研究结果表明:该废水经两级好氧生物处理后,COD去除率为87.3%;混凝沉淀过程中絮凝剂PAC(聚合氯化铝)与PAM(聚丙烯酰胺)的最佳投药量分别为750.0mg/L和3.5mg/L,COD去除率为42.6%;通过臭氧氧化,色度去除率在90.0%以上。因此该废水通过以上工艺处理后,其出水COD与色度指标均能达到《污水综合排放标准》(GB 8978-1996)一级标准要求。     

Perception of risk from air pollution and reported behaviors: a cross-sectional survey study in four cities

We investigate how public perceptions of air pollution, risk beliefs and self-reported actions to limit personal exposure to ambient air pollution vary across cities. Our analysis also examines the extent to which a number of individual-level variables are associated to self-protective and information-seeking actions due to bad air quality. Data was collected through a questionnaire survey in four cities with a total sample of 1202 inhabitants. We found a moderate variation in the subjective evaluation of local air pollution between cities, as well as in the levels of annoyance and distress due to air pollution. There was relatively little variation in perceived severity, worry and self-reported actions. No variation was found for self-reported attention to air quality levels and controllability beliefs regarding the risks from air pollution. Preliminary modeling of four self-reported actions suggests that self-reported attention to air quality levels and worry are important predictors of self-protective and information seeking behavior. We conclude that both personal and contextual factors have to be taken into account in order to understand public reactions to outdoor urban air pollution. We discuss the implications in terms of risk and health communication.     

江西机械化工厂人力资源的实践探索

文章分析了江西机械化工厂人力资源开发建设的有利条件,公司经过多年的经验积累,为人力资源开发与管理体系建设奠定了良好的基础,形成了比较规范的人才开发与管理的体系,初步形成了有特色的企业文化,树立了良好的企业形象。同时,文章分析了江西机械化工厂人力资源开发与管理存在的问题和人才队伍结构与企业发展的战略矛盾,提出进一步完善人才发展规划,加强人力资源部门的组织建设,建立并完善人力资源开发制度和政策。