藻类抗毒性效应研究现状

污染物的毒性大小决定其在环境中的安全浓度，大力开展各类污染物对藻类毒性的研究，了解各种污染物在生态系统的迁移、转化及整体生态效应以及其生态风险评价无疑具有重要的理论意义和应用价值。本文综述了近年来我国在有机污染物对单种藻类和藻类群落的毒性效应的研究成果。     

上海市全面实行排污许可证交易的可行性探讨

排污许可证交易系统应建立在一个完善和有效的排污许可证管理体制基础上。文章认为上海市现有排污许可证体制的经济内涵、产权、初始分配方式、基价体系等方面必须进行改革和完善。与发达国家实行的排污许可证体制相比，上海市实行的排污许可证体制缺乏相应的经济内涵，只是排污许可“执照”体制，上海市的排污许可证交易实际上是排污许可“执照”交易。根据上海市现行排污许可证体制的经济内涵及实施现状来看，近期内全面推行真正意义上的排污许可证交易所必需的条件还未成熟。目前应当继续在黄浦江上游地区进行排污许可证交易，并在各方面进行探索，进一步积累经验。     

排污收费制度与城市污水处理厂的发展

文章分析了排污收费制度、企业点源水污染治理情况和城市污水处理厂的现状，提出运用经济动力，按照“污染者付费”的原则，形成排污交易市场，使污水处理走产业化发展之路。     

分子生物学在生物强化处理环境污染物中的应用

综述了分子生物学的相关技术在生物强化处理环境污染物中的应用，主要包括：通过分子生物技术育种、筛选、构建高效降解污染物微生物菌株；提供更科学、快捷、准确多样的环境监测和环境评价技术手段；探索微生物与环境污染物间的相互关系，及微生物降解污染物的有关基因定位，相关主要技术有：核酸探针检测、DNA-DNA杂交，rRNA和rRNA基因序列分析。质粒指纹图谱分析、聚合酶链式反应（PCR）、低分子量PNA分布图及由PCR技术发展而带动的基因多态性技术，如变性梯度凝胶电泳（DGGE）、随机扩增多态性DNA技术（RAPD）等。     

聚合装置污水现状与预处理对策探讨

对腈纶厂装置的污水现状进行了分析，并结合现有的污水处理流程探讨聚合装置污水处理的方案和对策。     

高斯迭加模式在区域性大气环境影响评价中多源污染的应用

在区域大气环境影响评价中，经常遇到多个污染源复合污染问题。由于其污染特性与单源污染不同，容易造成评价区局部地区严重污染（如出现高浓度环岛）。本文推荐使用高斯迭加模式进行复合污染的计算，并在此基础上绘制污染物等浓度线图，为环保决策部门提供图文并茂的环评资料，同时也就应用高斯迭加模式计算的产生的各种误差进行了探讨。     

Impact of emission reduction on aerosol-radiation interaction during heavy pollution periods over Beijing-Tianjin-Hebei region in China

In December 2015, the Beijing-Tianjin-Hebei (BTH) region experienced several episodes of heavy air pollution. The government immediately issued emergency control measures to reduce the pollution, which provided a good opportunity to explore the impact of emission reduction on aerosol-radiation interaction. In this study, four tests were conducted, including the base1 simulation with emission reduction and aerosol-radiation interaction on, the base2 simulation with emission reduction and aerosol-radiation interaction off, the scenario1 simulation without emission reduction and aerosol-radiation interaction on and the scenario2 simulation without emission reduction and aerosol-radiation interaction off. We find that the aerosol-radiation interaction decreased the downward shortwave radiation and the temperature at 2 m, reduced the planetary boundary layer height (PBLH) in the region, and increased the relative humidity at 2 m, which is favorable for pollution accumulation. Our results revealed that the interaction effect due to emission reductions increased downward shortwave radiation by an average of 0–5 W/m², leading to increase in surface temperature of 0–0.05°C, increase in the daytime mean PBL high of 0–8 m, and decrease in daytime mean relative humidity at 2 m of 0.5%. We found that if there were aerosol-radiation interaction, it would enhance the effectiveness of emission control measures on air pollution control. The enhance of PM_2.5 (particulate matter less than 2.5 µm), PM₁₀ (particulate matter less than 10 µm), and NO₂ (nitrogen dioxide) emission reduction effects reached 7.62%, 6.90%, 11.62%, respectively, over this region.     

关于黑龙江省大气污染物减排指标的分析

总量减排已成为环保工作的重中之重,按照十二五大气污染物减排指标,重点关注了二氧化硫、氮氧化物的排放情况。从全省、区域、行业等多角度展开研究,以期弄清黑龙江省大气环境中两项减排指标的排放现状。     

浅析铁岭市废水排放对辽河水质的影响

通过对铁岭市工业废水及生活污水排放状况的综合分析,评价出铁岭市对辽河上游段水质的影响,为辽河流域污染防治提供依据。     

A comprehensive simulation approach for pollutant bio-transformation in the gravity sewer

A comprehensive pollutant transformation model for sewer systems is established. The model comprises fermentation, sulfate reduction and ammonification processes. Biochemical reactions related to distinct carbon sources are depicted in the model. Pollutant transformation is attributed to different biochemical reaction processes. Presently, several activated sludge models (ASMs) have been developed to describe a few biochemical processes. However, the commonly used ASM neither clearly describe the migratory transformation characteristics of fermentation nor depict the relationship between the carbon source and biochemical reactions. In addition, these models also do not describe both ammonification and the integrated metabolic processes in sewage transportation. In view of these limitations, we developed a new and comprehensive model that introduces anaerobic fermentation into the ASM and simulates the process of sulfate reduction, ammonification, hydrolysis, acidogenesis and methanogenesis in a gravity sewer. The model correctly predicts the transformation of organics including proteins, lipids, polysaccharides, etc. The simulation results show that the degradation of organics easily generates acetic acid in the sewer system and the high yield of acetic acid is closely linked to methanogenic metabolism. Moreover, propionic acid is the crucial substrate for sulfate reduction and ammonification tends to be affected by the concentration of amino acids. Our model provides a promising tool for simulating and predicting outcomes in response to variations in wastewater quality in sewers.