Study on Middle and Short Term Forecast and Assessment Technology on Atmosphere Hydrosphere Disasters

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前兆异常与地震相关性研究—— 一个值得广大地震学者重视的问题

简要介绍了前兆异常与地震相关性定量分析方法,并列举了在进行这方面研究中目前存在的薄弱环节和困难,以期引起广大地震分析预报人员的重视。     

环境质量评价模糊集理论与模式研究

探讨了模糊集理论方法对环境质量评价的可行性，以大气环境质量评价为例，叙述了这种方法的研究程序及计算步骤。研究表明，采用模糊集理论方法对大气环境质量进行评价，结果结果合理，方法可行，有一定的参考价值。     

山东日照市东港区震害损失动态初步预测

本文以山东省日照市东港区为例，以其１９９０年基础数据和１９９０年静态震害人员、财产损失预测为基础，以未来５年预测的房屋、人口、财产变化结果为变量，给出了动态震害人员、财产损失预测的方法及其初步预测结果。该方法还可以根据房屋、人口、财产的实际变化情况，实现“滚动式”的震害人员、财产损失预测。     

基于自回归GA-BP神经网络的AQI预测

基于徐州市2013年12月—2018年11月的空气质量指数日均值,建立了时间序列自回归输入的GA-BP神经网络模型用于空气质量指数预测。结果表明,所建立的网络模型能够准确预测徐州市空气质量指数的变化趋势,其中夏季预测相对误差18. 23%,仿真均方根误差(RMSE)为14. 59;冬季预测相对误差9. 14%,仿真RMSE为11. 47。     

Natural abundance of Sb and Sc in pristine groundwaters, Springwater Township, Ontario, Canada, and implications for tracing contamination from landfill leachates

Using ICP-SMS and the clean lab methods and procedures developed for determining trace element concentrations in polar snow and ice, a lower limit of detection (LOD) of 30 pg l(-1) for Sb and 5 pg l(-1) for Sc was achieved, allowing the natural abundances of Sb and Sc to be measured in pristine groundwaters. Water samples were collected from natural flows and wells between Elmvale and Wyevale in Springwater Township, Ontario, Canada. The water in this region is derived from chemical reactions between meteoric fluids and the Quaternary sediments which cover the bedrock (dolomitic limestone) to depths of more than 100 m. The chemical composition of these waters (pH 8) is primarily a reflection of reactions between the percolating fluids with calcite and dolomite. The maximum concentration of Sb was 5.0 ng l(-1), and the average of all samples collected was 2.2 +/- 1.2 ng l(-1) (n = 34). The average concentration of Sc was 8.6 +/- 4.7 ng l(-1) (n = 28). The paucity of published Sb concentration data available for comparison is probably because most of the analytical methods commonly used to date, including GFAAS, HG-AAS, HG-AFS, INAA, and ICP-QMS, have lower limits of detection which are inadequate for reliably determining the natural abundance of Sb in many uncontaminated groundwaters. Also, the measurement of extremely low concentrations of Sb requires extra care to avoid possible contamination. Given the extensive use of Sb in plastics, we show that some of the containers used to collect and store samples, and for handling and preparing samples for chemical analyses, may be important sources of contamination in the laboratory. The Sb and Sc concentrations reported here should serve as reference values for this region, against which contamination by various human impacts in future could be compared.     

中国和美国冷原子吸收分光光度法测汞的比较

我国已加入WTO，国际间的合作日益加强。环境监测部门不仅要了解本国本行业的规范，还应了解世界，了解国外的标准分析方法。对中国和美国的4种冷原子吸收分光光度法测定汞作了比较；提出用冷原子吸收分光光度法测定汞时，应按照不同的样品及不同的要求，选择合适的方法以实现质量控制的要求。     

楚雄市农村能源建设的生态经济效益分析

通过对楚雄市2002年农村能源现状及2002-2010年农村生活用能源建设规划分析,对2005年、2010年能源结构及生态环境效益进行了定量分析。经过8年农村能源建设,完全可以实现能源结构优化。环境、经济效益非常显著。     

可降解塑料生物降解性测试方法研究

通过对３种可陈解塑料生物降解性测试方法进行的实验研究，分析了各种方法的优缺点，对将来开发合理可行的标准测试方法提出了建议。     

生物膜—活性污泥联合工艺在高浓度工业废水处理中的应用

简要介绍了近年来生物膜—活性污泥联合工艺进展 ,列举了该工艺在处理高浓度工业废水中应用的工程实例。总结分析了联合工艺的优点及目前应用中存在的问题