海河干流浮游植物调查及环境影响因子研究

为研究海河干流汛期富营养化状况,于2013年8月对海河干流进行了浮游植物调查和水质监测,并采用冗余分析(RDA),研究了浮游植物群落与环境因子的关系.结果表明,浮游植物共计5门37种(属),优势种为水华微囊藻(Microcystis flos-aquae)、微小色球藻(Chroococcus minutus)、颤藻属(Oscillatoria sp.)、钝顶螺旋藻(Spirulina platensis)和梅尼小环藻(Cyclotella meneghiniana).浮游植物丰度范围为583.00～12 021.00×104 cells·L-1,生物量范围为4.01 ～45.70 mg·L-1,以蓝藻为主,海河干流处于重富营养状态.RDA分析结果表明,硝酸盐氮是显著影响海河干流浮游植物丰度变化的主要环境因子.控制营养盐的输入是防治海河干流蓝藻水华的主要措施.     

石化企业HSE管理平台设计与实现

阐述了石化企业HSE管理平台的设计思想和主要功能,介绍了HSE平台的特点.该平台的建立和运行,将提高企业安全管理的效率,使之更加科学化、系统化、规范化、制度化.     

Quantitative structure-toxicity relationships of organophosphorous pesticides to fish (Cyprinus carpio)

This study was conducted to determine the relationships between 1381 chemical and structural parameters of 43 organophosphorus pesticides (OPs) and their toxicity to fish, Cyprinus carpio, using ChemOffice 8.03 and Dragon 2.1. By multivariate linear regression and intervariable regression analyses, various equations have been derived to calculate the lethal toxicity value, LC(50), for 43 OPs found in fish with different levels of toxicity. Results show that for all selected OPs, especially those of low toxic OPs (LC(50)< 2.5 mM), the equation, LC(50) = 56.259 - 13.071 lg K(ow)+17.510 MATS8P-17.455 Mor24u - 0.085 MW + 1.706 (lg K(ow))(2) + 2.306 (Mor14e)(2) + 6.849 Mor20 m (n = 43, F = 36.815, r = 0.942, r(adj)(2) = 0.862, SE = 2.899, p < 10(-6)), could account for 86.2% of the variability of the toxic effect. The steric and electronic characteristics and the hydrophobicity of OPs, in particular, are among the most important parameters determining the toxicity of OPs to fish. For the OPs with high toxicity, different structural parameters were introduced into the following two equations: LC(50)=3.795-1.195 (H1p)(2)-0.037 U-2.225 MATS3v-19.593 Tcon (n = 16, F = 56.820, r = 0.977, r(adj)(2) = 0.937, SE = 0.143, p < 10(-6)), where LC(50) is less than 2.5 mM, and LC(50) = 0.341-0.561 (HOMA)(2) + 0.231 HOMA (n = 3,r(adj)(2) = 1), where LC(50) is less than 0.3 mM. These results suggest that chemical and structural parameters could be useful in modeling chemical reactivity within homologous series of OP compounds and elucidating possible mechanisms associated with different levels of toxicity to fish.     

Heavy metal contamination of road-deposited sediments in a medium size city of China

The aim of this paper is to determine and compare the environmental factors controlling vertical colonisation of periphyton on Sparganium erectum in a shallow eutrophic turbid lake, Manyas Lake, and an oligo-mesotrophic deep lake, Sapanca Lake, Turkey during the July 1997--November 1998. To investigate the effect of the environmental factors on periphyton colonization on S. erectum, the stem was cut above the rhizomes and subdivided into three equal sections. Multivariate statistical analyses have been applied to clarify relationships between environmental variables and periphyton colonization on S. erectum. Results indicated that physical disturbance and trophic level of the lakes influenced the colonization of the periphyton. Among the measured parameters, low light intensity, total suspended solids, temperature and water level fluctuation were observed as driving factors in Manyas Lake whereas nutrient deficiency was found as key factor in Sapanca Lake. The zonation of the periphyton, density, composition and dominant/subdominant taxa were significantly different in these lakes. However, Oedogonium sp., Mougeotia sp., Cylindrocapsa sp., Cladophora glomerata (Linn.), Aulacoseira italica (Ehr.) Simonsen, Melosira varians C. Agardh, Navicula tripunctata (O.F. Müller) Bory and Fragilaria ulna (Nitzsch) Lange-Bertalot were found as dominant species at all sections of S. erectum both in Manyas Lake and Sapanca Lake. It can be thought that these species have a broad range of tolerance to several physical, chemical and hydrologic disturbances. This is the first study to introduce how much the water quality and hydrologic drivers have affected vertical colonization of periphyton on S. erectum in two lakes with different mixing regimes.     

影响省级环境监测中心站职工积极性因素的调查

调查结果表明，在二十项调查内容中，省环境监测站职工普遍对工作条件类指标（单位的领导水平、良好的工作环境、和睦的人际关系、领导重视和单位的前途）寄予很高的期望。对经济类指标（福利待遇和稳定的经济收入）反映强烈。此外，对能够体现知识分子能力和水平的职称晋级问题也有较高的要求     

Geo-morphological changes of the Wanpingkou tidal system arising from the building of a sailing boat station in Rizhao of China

This paper examines a small tidal system in Wanpingkou, Rizhao of China. The tidal system was originally maintained by a balance of the natural interaction between tidal currents and waves. But this tidal system was diminishing by reclamation processes since the 1980s, especially in 2003 when a sailing boat station was built in the study area. To investigate the stability and development mechanism of the tidal system, its feasibility was evaluated before the sailing boat station was built. The erosion and deposition in and out of the tidal system was analyzed, forecasted and compared with the data from field monitoring. The results show that the tidal system would remain relatively stable, although its adjacent shoreline might change somewhat after the newly built sailing boat station. This change would also affect the coastal water and wetland environment in the study area. Further field monitoring in the area is still necessary.     

政府环境绩效审计研究综述

为了对政府环境绩效审计的有关理论问题有一个系统深入的认识,促进环境绩效审计工作的发展,文章对政府环境绩效审计方式尤其是评价指标体系等方面的国内外研究进展进行了综述,对审计的核心内容、主要方法和实现途径进行了探讨,期望为我国环境绩效审计工作指标体系、核心内容、主要方法和实现途径等工作的开展提供借鉴作用。     

微电解联合物化法处理维生素B12难降解废水的研究

对使用微电解联合物化法处理维生素B12难降解废水进行了分析。通过实验研究了微电解联合物化法处理维生素B12废水的最佳工艺条件。在最佳工艺条件下,维生素B12废水色度去除达88.46%,COD去除率达到71.06%。该处理方法最后将污染物质直接吸附于改性膨润土上,不产生浓缩废水、酸碱废水等更加难以处理的废水,并且不带入有毒有害物质,可以有效降低水中污染物含量,减少后续生物处理设备的污染负荷。     

长江以北沿海经济贝类中的麻痹性贝毒

应用小白鼠检测方法，对我国长江以北沿岸的经济贝类进行了麻痹性贝毒检测。采样时间 １９９７年９月２３日￣１２月８日。从鸭绿江口到长江口共调查２０个站位，检测经济贝类１４种，样品３８份，其中只有１份样品检测出麻痹性贝毒（６．４Ｍｎ／ｇ），其余样品均为未检出。     

PNN破乳剂的合成及其乳化液废水处理

由氨,仲胺与伯胺及表卤代醇合成制备了合成制备了高效破乳剂ＰＮＮ,并用以处理乳化油废水,取得了较好的效果。结果表明,在ＰＨ＝６．０－７．５,投量为１．８８‰３．０‰的条件下,用ＰＮＮ处理ＣＯＤｃｒ为７１８４０ｍｇ／Ｌ、ｉｍｇ ｏ １５５３４ｍｇ／Ｌ、油为１５５３４ｍｇ／Ｌ的某乳化油废水,最佳ＣＯＤｃｒ去除率达９２．７％,最佳油去除率达９９．９％。,浊度去除率达到９９．９％,该药剂破乳后固液分离性能较