大连声环境质量的灰色预测研究

根据1999年～2003年大连市区声环境质量的监测数据，采用两次残差修正GM（1，1）对2010年前声环境质量进行预测结果表明，修正后模型均为一级模型，进行中、短期预测精度高。预测结果可为城市噪声污染防治提供科学的依据。     

九龙甸水库水质预测及分析

通过对1996年-2001年间水质监测数据的灰色系统处理,对九龙甸水库水质进了行中长期预测。结果显示九龙甸水库水质在相当长的时期内将保持稳定,能达到规划的地面水Ⅱ类水质功能区要求。     

沈阳市大气污染防治对策

本文根据沈阳市的大气污染现状，分析了大气污染形成的原因和特点及影响大气环境质量的主要因素，确定了大气环境质量目标。并提出了近期和２０００年的大气污染防治对策．     

Transabdominal chorionic villus sampling in the second and third trimesters of pregnancy: Chromosome quality,reporting time,and feto-maternal bleeding

Transabdominal chorionic villus sampling (TA-CVS) was performed in 210 pregnancies from 13 to 38 weeks using a double-needle technique. The sampling success was comparable to first-trimester TA-CVS and the diagnostic success rate was 98.2 per cent for the short-term technique and 99.3 per cent for cultured villi. Two fetuses could not be karyotyped. We found the chromosome quality to be similar to that in the first trimester, comparing the number of G-bands and other chromosome attributes. There were no unintended losses in a group (n = 142) with no sonographic abnormality, except for one death in utero at 38 weeks, 20 weeks after sampling. Chromosomal aberrations were seen in 19 per cent of cases with abnormal sonograms (n = 58). One case of a discordant karyotype was found (false-negative prediction of Down's syndrome by the short-term preparation). There were no cases of fetal demise due to feto-maternal bleeding. It is suggested that double-needle TA-CVS in advanced pregnancies combines the advantages of rapid karyotyping of chromosomes of good quality and low risk for the fetus, and seems to be easier to practise and is probably safer than cordocentesis.     

参窝水库水体自净能力及水质变化规律研究

根据参窝水库近几年的水质监测资料，对参窝水库的水体自净能力及水质变化规律进行了较深入的研究、计算出主要污染物在参窝水库的自净率，分析了参窝水库水质变化规律，为参窝水库的水污染防治提供了科学的依据。     

用浮游及底栖动物评价饮马河水质

根据浮游及底栖动物种群结构和数量分布特点，对秦皇岛市饮马河水质进行了初步评价，评价结果表明，生物监测技术方法可行，简单直观，与化学监测的结果基本一致。饮马河全程水质属于中-重污染。     

海南万泉河水资源保护规划研究

海南万泉河水资源保护规划研究宗子就，荆帆，沙平（北京有色冶金设计研究总院北京１０００３８）谢宁，蔡小平（琼海市环境资源局海南５７１４００）关键词水资源，水质控制目标，保护规划ＡＳＴＡＤＹＯＮＴＨＥＷＡＴＥＲＲＥＳＯＵＲＣＥＰＲＯＴＥＣＴＩＯＮＰＲＯＧ...     

Transboundary air pollution balance in the new integrated European environment

Ten out of the 12 new EU members, used to belong to the so-called “former eastern block”, with a post WWII environmental policy radically different from the tendencies followed in Western Europe. The lack of conservation regulations has resulted in a rather harmful industrialization, regarding natural resources and environmental quality. While air pollution transfer is a phenomenon of transboundary level, there is a particular interest in examining the contribution of the new EU member states to the environmental pressure faced by the older member states and vice versa. The current study utilises the official data for almost 20 years published by the European Monitoring and Evaluation Program concerning the transboundary transfer of NO_x and SO₂ in order to analyse the situation and discuss the present and future environmental policy regarding air pollution.     

多级模糊模式识别方法用于湖泊水质评价

进行模糊综合评估的应用与研究很多，在那些方法中主要应用最大隶属度原则进行最后的评定，但是湖泊水质评价涉及到多样点多项指标等多因素，一般模糊综合评价方法中的最大隶属度原则不能适用。本文利用多级模糊模式识别方法的基本理论，通过多目标优选，给出了更加合理、科学的评价模型；利用该模型我们对武汉市东湖水质监测结果做出了较为合理的评价。     

炼油污水气浮絮凝处理中试

气浮絮凝是炼油污水处理工艺中重要的一步 ,它是确保炼油污水生化处理顺利运行的关键 ,而开发和筛选优良的絮凝剂则又是提高气浮处理效果的保证。采用无机—有机复合絮凝剂进行炼油污水的中试试验 ,通过一系列条件试验 ,确定了复合絮凝剂投药剂量、投药间隔时间和投药方式 ,取得了令人满意的试验效果 ,CODCr的去除率 5 5 % ,石油类去除率 >75 % ,为后续的生化处理提供了合格的水质