推行清洁生产是防治污染的有效方法

概述了清洁生产的重要性，以大庆化工二厂为例，阐述了推行清洁生产收到的显著的经济和环境效益     

对征收噪声超标排污费问题的探讨

企业改革运行机制后，一个生产场所会出现多个企业并存，由此引发复合噪声源厂界的界定及超标排污费的计征等问题。应从广义上界定噪声源厂界并分清各排污单位的噪声污染责任，根据不同情况采取不同的超标排污费收费标准计征。     

绿色机动车—燃料电池汽车

简要叙述了燃料电池汽车的技术特点，主要有：能量转化效率高，ＣＯ２排放量比内燃机汽车低，基本不产生有毒气体，不要充电。在此基础上较详细地介绍了世界各国的燃料电池汽车研究现状，并针对上海市机动车污染严重的现状，提出了发展燃料电池汽车及其相关产业的建议。     

阜蒙县畜禽养殖业污染现状及控制对策

为了了解阜蒙县畜禽养殖业的现状，掌握畜禽养殖业污染特点，对养殖业污染进行了监测，结果表明畜禽养殖造成了对大气和地下水的污染，于是对此提出了控制污染的对策。     

采用门限自回归模型预测环境空气质量

应用汤家豪博士提出的门限自回归模型，以上海市环境空气质量时间序列监测数据和相应的气象数据，建立门限自回归大气污染预测模型，对上海市环境空气质量进行预测预报。结果表明：门限自回归模型计算较为简便且便于计算机自动建模。显著性检验表明门限自回归预报方程高度显著，在实际应用中，采用最新的数据建模和采用分站建立模型的方法可以使预测精度进一步提高。     

网捕凝聚法处理高浓度有机络合铜废水

采用网捕凝聚法对含Cu为1730～3820mg/l、COD为3984～5480mg/l的有机络合铜废水的处理工艺条件进行了研究。经实验室放大试验表明,在严格控制pH7.0～7.5条件下,加入凝聚剂生成絮体晶核来实现网捕凝聚,可使出水中铜为0.2～2.0mg/l,然后采用生物流化床对此废水进行生物降解,可使排放水中铜和COD达到或接近排放标准。     

生物测试法应用于判别除草剂环境污染

在实验室条件下进行了阿特拉津、乙草胺、甲磺隆3种除草剂对玉米根长抑制试验.结果表明,受试玉米对3种除草剂的敏感顺序为甲磺隆＞乙草胺＞阿特拉津.将此结果应用于农药环境污染事故的调查与诊断工作中,对污染因子进行了初步的分析和判定.     

Does foreign direct investment impede forest area in Sub‐Saharan Africa?

Foreign direct investment is an engine of economic growth. However, it may affect environmental quality (improve or deteriorate it), depending on the context. Under a multivariate framework, this paper aims to investigate the relationship between foreign direct investment and deforestation for Sub‐Sahara African countries with economic growth, trade openness and urbanization as additional determinants of deforestation. The analyses reveal that all variables are non‐stationary and cointegrated based on recent panel data techniques. On applying dynamic ordinary least squares, the long‐run results suggest the validity of the pollution haven hypothesis for some countries, and that of the pollution halo hypothesis for other countries. The findings are also mixed across Sub‐Sahara African countries for trade openness and urbanization. The results from this study suggest that Sub‐Sahara African countries should continue attracting foreign direct investment, while a certain number of them should put more emphasis on controlling deforestation associated with foreign direct investment inflows to limit greenhouse gas concentrations in the atmosphere.     

大气污染防治行动对哈尔滨常规大气污染物的影响

自2013年我国实施《大气污染防治行动计划》以来,我国大气中常规污染物的浓度逐年降低,环境空气质量得到了显著改善.哈尔滨市2014年以来,也陆续实施了《清洁空气行动计划》、《大气污染防治专项行动计划（2016─2018）》和《打赢蓝天保卫战三年行动计划》.本文基于哈尔滨市2015—2019年6种常规大气污染物在国控站点的浓度数据,对其污染特征和年际变化规律进行了深入研究.结果表明,PM_2.5、PM₁₀、SO₂、NO₂和CO的浓度呈现显著下降的趋势,而O₃的浓度却呈现上升的趋势.相关性分析表明大部分污染物与温度、湿度、降雨和风速均具有显著的相关性,反映了气象参数对于大气中常规污染物浓度的影响.谐波回归模型的结果表明,污染物的浓度具有明显的季节变化趋势和年际变化趋势,PM_2.5、PM₁₀、SO₂、NO₂和CO的半衰期分别为5.05±0.310、7.81±0.640、6.32±0.312、6.58±0.297和8.13±0.442年,O₃的倍增期为10.0±1.02年.结合哈尔滨近几年实施的大气污染防治行动计划,表明大气污染源的有效控制是常规大气污染物浓度持续下降的主要原因.     

Characterizing the antibiotic resistance genes in a river catchment: Influence of anthropogenic activities

Previous studies on environmental antibiotics resistance genes(ARGs) have focused on the pollution sources such as wastewater treatment plants, aquaculture and livestock farms,etc. Few of them had addressed this issue in a regional scale such as river catchment. Hence,the occurrence and abundances of 23 ARGs were investigated in surface water samples collected from 38 sites which located from the river source to estuary of the Beijiang River.Among them, 11 ARGs were frequently detected in this region and 5 ARGs(sul I, sul II, tet B,tet C, and tet W) were selected for their distribution pattern analysis. The abundances of the selected ARGs were higher in the upstream(8.70 × 10~6 copies/ng DNA) and downstream areas(3.17 × 10~6 copies/ng DNA) than those in the midstream areas(1.23 × 10~6 copies/ng DNA), which was positively correlated to the population density and number of pollution sources. Pollution sources of ARGs along the Beijiang River not only had a great impact on the abundances and diversity, but also on the distribution of specific ARGs in the water samples. Both sul I and sul II were likely originated from aquaculture farms and animal farms,tet W gene was possibly associated with the mining/metal melting industry and the electric waste disposal and tet C gene was commonly found in the area with multiple pollution sources.However, the abundance of tet B was not particularly related to anthropogenic impacts. These findings highlight the influence of pollution sources and density of population on the distribution and dissemination of ARGs at a regional scale.