安阳市大气PM2.5中水溶性离子季节特征及来源解析

为探究安阳市大气PM_2.5中水溶性离子的污染特征及其来源,于2018～2019年的典型月份在安阳市采集PM_2.5样品,使用离子色谱测试了9种水溶性离子(Na⁺、NH₄⁺、K⁺、Mg²⁺、Ca²⁺、F^-、Cl^-、NO₃^-和SO₄^2-).开展了PM_2.5和水溶性离子浓度水平的分析、阴阳离子平衡和氮氧化率(NOR)、硫氧化率(SOR)的计算、离子相关性和主成分分析等.结果表明,安阳市PM_2.5和水溶性离子年均浓度分别为(85.81±45.43)μg·m^-3和(48.21±30.04)μg·m^-3,各离子浓度高低顺序为NO₃^->SO₄...     

Development of inherent safety and health index for formulated product design

The numerous formulated products which are introduced to the market consist of chemical ingredients that may cause various safety and health hazards to the consumers. Therefore, it is extremely important to practice a systematic methodology to formulate products with acceptable safety and health performances. This work presents an index-based methodology to assess the safety and health hazards of the ingredients during the early formulation stage of product design. Hence, new inherent safety and health sub-indexes are introduced to improve the current safety and health hazards that are needed in formulated product design. The inherent safety and health sub-indexes are assigned with scores based on the degree of potential hazards. A higher score indicates a higher safety risk or severe health effect, and vice versa. The proposed methodology will greatly assist the users to identify the adverse safety and health effects caused by the ingredients. Hence, it is pivotal to eliminate or reduce the safety and health impacts from product usage. A case study on common ingredients used in the formulation of paint is presented on this study to describe the proposed method.     

Cooperative Game Among Cities in Urban Agglomerations and Economical Sustainable Development

This paper analyses redounded profits of cooperation and non-cooperation among cities in urban agglomerations based on game theory. It discusses the problems of economical development among cities with feeble cooperation, and deduces the conclusion that only cooperation of cities produces the maximum profits and realizes Pareto efficiency for cities and urban agglomerations. The paper states that cooperation is the cornerstone of economic sustainable development in urban agglomerations in profits produced by cooperation among cities. Some suggestions to accelerate cooperation among cities are proposed.     

清洁生产推动城镇企业向循环经济型转化初探

分析了城镇企业的生存现状,叙述了清洁生产、循环经济的意义,着重提出城镇企业推行清洁生产,向循环经济型企业转化的重要性。     

关于实施沈阳可持续发展项目提高城市环境管理规划能力的探讨

介绍了沈阳可持续发展项目并探讨了该项目对沈阳市实施可持续发展的影响，突出了实施可持续发展战略对沈阳的影响，并对如何实施沈阳可持续发展战略、做好沈阳可持续发展项目提出了建议．     

开封城市景观生态规划

在开封市生态建设现状分析的基础上,运用景观生态学的理论和方法,从廊道、斑块、基质三个方面提出了改善开封城市景观结构,优化城市生态环境的基本思路和建议.     

杭州市医院固体废物现状调查与处置对策

通过对抗州城区69家医院1999—2001年固体废物的来源、种类、产生量及处置现状的调查研究，分析了医院固体废物在收集、处置过程中存在的问题，提出了相应的对策。     

A2/O法处理城市污水工程实例

介绍了黄冈市遗爱湖污水处理厂的工艺流程,各构筑物和主要设备的参数.该工艺采用A2/O生物处理池、二沉池及消毒池合建,具有占地小,能耗省的特点,且出水水质达到<城镇污水处理厂污染物排放标准>(GB18918-2002)中的一级标准的B标准.     

上海市居住区环境保护的对策研究

剖析了上海市居住区由于选址不当，市政配套设施滞后和社会服务业发展等带来的环境了至２０１０年上海民在住环境保护的目标体系的５大类１４项单项指标和相应的措施。     

邳州市畜禽养殖业污染问题研究

针对当前中国农村飞速发展的畜禽养殖业,以江苏省邳州市为例深入调研了近年来邳州市畜禽养殖业的发展水平和发展现状,以点代面指出当前中国大多数农村畜禽养殖存在的对畜禽养殖认识不足、选址不当、规模化程度低、管理较为粗放、监管力度不够、环境污染严重等主要问题,对下一步畜禽养殖业的发展和污染治理问题作了探讨并提出了加强监管、多渠道投入治理污染和废物综合利用、搞好养殖场规划等对策.