工程项目大气环境影响评价中污染物浓度叠加方法研究

本文对工程项目大气环境影响评价中污染物浓度叠加方法进行了研究。在叠加方法研究中,提出用判别指数判别筛选叠加方法。通过叠加方法筛选,选取了瞬时浓度,日均浓度叠加方法。经实例验证,证明方法是合理可行的,适用于大气污染物浓度叠加计算。     

空气质量日报、预报管理信息系统开发浅谈

结合乌鲁木齐市开展空气质量日报，预报以来的一些经验，对空气质量日报管理信息系统作一介绍，并对关键部分提出了具体的实施方案。     

提高年度环境质量报告书编制水平的思考

通过对河南省 2 0 0 2年度各省辖市环境质量报告的调查分析 ,针对编制中存在的主要问题 ,提出制定省级规范 ,统一评价方法、评价模式和评价因子 ,增强对环境质量的定性分析 ,进一步加强环境质量变化原因分析 ,提高环境质量报告书的社会性和可读性 ,开展多种形式的交流活动 ,全面提高年度环境质量报告书的编制水平     

河流水质月报评价项目的选择

以三种评价项目选择法对国控河流断面水质评价的结果进行了比较。结合现阶段我国的经济技术条件选择了适用于河流水质月报的评价项目即pH、溶解氧、高锰酸盐指数、五日生化需氧量、氨氮、石油类、挥发酚、汞和铅等9项。     

EXCEL与底泥数据的分析

以《环境质量报告书》中对底泥监测数据的处理与分析为例，展示了EXCEL的几项强大功能和在实际工作中的使用方法与步骤。     

Internal and External Factors Influencing Time-Related Injury Risk in Continuous Shift Work

Time-related accident risk in shift work may be attributed to internal factors, such as fatigue, level of performance, sleep propensity, and to some external factors, like shift system, physical and social environment. Six hundred and sixty-eight events in the metallurgical industry have been analysed in terms of time of day, time on task, consecutive day of the shift block, day of the week, and season.

The injury rate was similar on all shifts but more severe accidents happened in the nighttime. Somewhat more injuries occurred in the second half of the shift, in the second part of a shift block, and in summer compared with winter. There were fewer injuries at weekends.     

火电厂安全预评价报告常见问题浅析

本文系统分析和讨论了火电厂安全预评价报告在基础参数描述、生产流程示意图绘制、重大危险源辨识等方面存在的问题,并提出了相应的改正措施和建议,以期对火电厂安全预评价报告的编制工作起到一定的指导作用,使其为建设项目的初步设计提供更好的安全对策措施和建议.     

Impacts of Social and Demographic Factors on Residents’ Subjective Well-being in Rural China

Abstract

The objective of social development is to construct a harmonious society. In China, the key to a harmonious society is the happiness of more than 900 million farmers living in the rural areas. This study aimed to measure rural residents’ subjective well-being (SWB) through the day reconstruction method, as well as to analyze SWB’s influencing factors through a variety of statistical methods. The results showed that the average U index was 12.79%, indicating that respondents were unhappy 12.79% of the time. Twenty-seven percent of the population had a U index greater than 0, with the average value being 47%, indicating that these people were unhappy 47% of the time. The study also found that SWB varied according to the characteristics of the respondents. Logistic regression analysis showed that social and demographic factors, including age, education, county, household size, generation number, per capita income, migration status and social networking, which significantly affected rural residents’ SWB. The size of the impact varied with the different factors.     

水质监测领域报表工具的研究与应用

水质报表是水环境监测领域内系统的重要组成部分,为加快水质报表的开发,增强水质报表的可维护性,设计独立于系统并且符合水质报表特性的报表工具。该报表工具分为报表设计器和报表服务器两部分,设计器提供可视化的报表编辑界面,允许用户自己设计报表函数,服务器负责报表的调用和解析并且采用缓存机制提高报表的运行效率,将该报表工具应用于水质环境监测及分析系统以验证其实用性,结果证明,该水质报表工具具有较高的灵活性和可扩展性。