福州市春冬季灰霾天气PM10和PM2．5污染水平和气象特征分析

分析和探讨了福州市霾日和非霾日气溶胶PM10和PM2.5污染水平,无论春季或冬季,霾日福州市气溶胶PM10和PM2．5的质量浓度是非霾日的1．6倍;通过对霾日与非霾日的天气形势与及地面气象要素场的分析,揭示了福州市灰霾天气形成原因。为政府用空气扩散能力来对大气污染物排放进行调控,为开展相应的大气污染防治工作提供科学依据。     

辽宁省市域经济与环境协调发展度研究

分析了辽宁省的社会经济一环境系统现状。通过指标体系的构建、指标权重的确定及评价模型的论证,对辽宁省市域的协调发展程度进行评价研究。结果表明,辽宁省整体处于中等协调发展类经济滞后型,市域经济与环境协调发展度呈7种表现类型。     

基于蝴蝶型突变理论的安全生产保障系统分析和探讨

利用突变理论探讨事故致因模型,揭示事故致因的基本要素及其内在联系,对构成的要素进行抽象化,将对众多复杂企业的不安全因素进一步归纳为"人-机-环境-管理"安全生产保障系统,分析建立该系统的必要性,在突变理论的蝴蝶型与该系统结合性的基础上,探讨和建立安全决策和安全对策模型,将企业的安全生产危险程度分为理想的安全区域、危险区域、相对的安全区域。提出了危险程度和安全状况改进的数学模型,蝴蝶型突变理论能够揭示企业的安全状况。     

几种常用屋顶绿化植物的耐热性评价

耐热性足屋顶绿化植物必备的指标之一.试验采用盆栽法,选择佛甲草、沿阶草、高羊茅、白三叶4种屋顶绿化常用植物,研究了在高温胁迫条件下植株的形态特征、脯氨酸含量、超氧岐化酶含量、丙二醛含量、可溶性糖含量、叶绿素含量.结果表明:所有参试植物的生长和生理指标都随热胁迫的程度而变化,但植物之间差异显著.其耐热性强弱顺序为:佛甲草...     

Cationic content effects of biodegradable amphoteric chitosan-based flocculants on the flocculation properties

A series of biodegradable amphoteric chitosan-based flocculants (3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA) modified carboxymethyl chitosan, denoted as CMC-CTA) with different substitution degrees of CTA were prepared successfully. The content of carboxymethyl groups in each CMC-CTA sample was kept almost constant. The solubility of the various flocculants showed that, higher cationic content of flocculants caused a better solubility. The flocculation experiments using kaolin suspension as synthetic water at the laboratory scale indicated that the substitution degree of CTA was one of the key factors for the flocculation properties. With the increase of cationic content, the flocculants were demonstrated better flocculation performance and lower dosage requirement. Flocculation kinetics model of particles collisions combining zeta potential and turbidity measurements was employed to investigate the effects of the cationic content of the flocculants on the flocculation properties from the viewpoint of flocculation mechanism in detail. Furthermore, flocculation performance using raw water from Zhenjiang part of Yangtze River at the pilot scale showed the similar effects to those at the laboratory scale.     

化工园区定量风险评估方法及其应用

分析了我国化工园区风险特点,介绍了区域定量风险评估方法,以某化工园区为例进行了定量风险评估,通过分析计算,给出了该区域的风险评估结果,项目符合标准的要求,提出了风险控制措施,有助于化工园区装置合理布置和科学规划.     

Environment and Personal Well-being in Urban China

Abstract

The aim of this study is to examine the relationship between environment and personal well-being using a sample of 562 urban employees from three cities in Liaoning province in the People’s Republic of China. In contrast to previous studies, this study controlled positive affectivity (PA), negative affectivity (NA), job satisfaction and Big Five personality traits. In addition, the research variables of personal well-being index (PWI), positive affectivity, negative affectivity, job satisfaction, Big Five, and environmental satisfaction are measured with multi-item scales. The research finds that environmental satisfaction is positively related to personal well-being, suggesting that improvement of the natural surroundings in the cities can improve people’s well-being.     

The Role of Fictional Film Exposure and Narrative Engagement for Personal Norms,Guilt and Intentions to Protect The Climate

ABSTRACT

Using an integration of Norm Activation Theory, Value-Belief-Norm Theory and Narrative Persuasion, this study investigates the ability of an eco-dystopian science fiction film set in a world of excessive solar radiation to support intentions for pro-environmental behavior. Specifically, the influence of narrative engagement and explicit references to human responsibility for climate change are tested. A 2 (high vs. low narrative engagement) x?3 (human responsibility frame vs. temperature frame vs. no frame) plus control group (no film) experiment was conducted (n?=?257). Results show that compared to the control condition, the film had an indirect effect on behavioral intentions by raising the personal norm (a sense of personal obligation to act). The temperature change and human responsibility frames did not show any influence, while narrative engagement had an indirect effect on intentions by increasing guilt. The results are discussed with regard to their theoretical and practical implications.     

长江流域下游水体中药品和个人护理品赋存、分布、溯源及风险评估研究进展

药品和个人护理品（PPCPs）作为一类新污染物,种类繁多,且广泛存在于自然水体中。长江流域下游地区由于人口稠密,产业发达,PPCPs对于水体的污染问题尤为突出。简述了2010—2021年长江流域下游水体中PPCPs的赋存状况、时空分布及溯源分析情况,并对PPCPs的生态环境风险评估研究进展进行总结,揭示了近10年来长江流域下游水体中PPCPs的污染状况及变化态势,提出了未来PPCPs监测、溯源和风险评估的发展趋势,以期为水环境中PPCPs污染物的预警和管控提供参考依据。     

农产品质量安全内部协调度和耦合度测算及影响因素分析

在讨论农产品质量安全内涵的基础上,构建了农产品数量安全和质量安全指标体系,基于熵值法、CRITIC法、Ganger因果检验和回归分析等方法,使用2005—2018年中国时序数据,测度农产品质量安全的耦合度和协调度,并对农产品质量安全内部协调度的农业要素投入和管制导向影响进行了研究。研究表明：农产品质量安全内部存在相对单向的扰动,属于数量安全高于质量安全的非均衡体系;农产品质量安全内部呈现出高度的内部耦合,但发展协调度不高;化学品投入和产业投入对农产品质量安全内部协调发展具有推动作用,其他要素投入影响不明显;管制导向对农产品质量安全内部协调度有积极影响,其中,农业支持保护补贴和地理标志农产品登记数量的正向影响最大。未来应该通过优化管制效能,不断提高技术投入等要素的投入效率。