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2013年1月宁波市PM2.5污染的形成过程与传输规律
宁波 模式 过程分析
2015/8/10
为了深入认识宁波市冬季细颗粒物(PM2.5)的污染特征和主要影响因素的作用规律,利用 Models-3/CMAQ 模式系统对 2013 年 1 月宁波
市的 PM2.5污染形成过程进行了模拟分析.结果表明,宁波市 PM2.5的重点污染区主要分布在市区、北部地区及东部沿海,除了受到局地污染源
排放的影响外,对比非污染的情况,大气输入和气溶胶生成作用的增强是引起 PM2.5污染的主导因素,其中水平...
在一台整车排放达到国Ⅲ标准的YC4D140电控单体泵增压中冷柴油机上加装甲醇喷射系统,改成柴油甲醇组合燃烧(DMCC)发动机。使用AVL 415S烟度计和DMS 500快速颗粒物光谱仪研究不同后处理器对DMCC发动机颗粒物(PM)排放的影响。试验结果表明,各工况下单独CDPF、DOC+CDPF基本可以消除发动机产生的干炭烟。DOC+CDPF后处理方式与单独CDPF相比,颗粒物捕集效率明显提高,且前...
目的:探讨北京市大气颗粒物(PM10及PM 2.5)污染对居民循环系统疾病死亡的影响。方法:连续监测2007年至2008年北京市大气中PM 2.5日均浓度,并收集同时期海淀区居民循环系统疾病死亡数据、北京市大气污染物和气象条件资料,应用双向对称性病例交叉研究和条件Logistic回归对数据进行分析,同时调整了性别、年龄及季节等潜在混杂因素的影响。
Workplace Environment and Personal Exposure of PM and PAHs to Workers in Natural Rubber Sheet Factories Contaminated by Wood Burning Smoke
Smoke Polycyclic aromatic hydrocarbon Ribbed smoked sheet Exposure Fine particles
2016/3/29
The workplace environment in factories producing ribbed smoked sheet rubber (RSS), the interiors which are heavily
contaminated by wood burning smoke, was evaluated with a focus on the concentration ...
Evaluation of Proposed Winter PM Concentration Reduction Strategies Using the MM5 and CAMx4 Modelling System - Christchurch, New Zealand, 2005–2013
MM5-CAMx4 PM10 Complex chemical scenario Linear and non-linear reduction Christchurch SLiP-CLiP
2016/3/29
Mesoscale Model (MM5) and Eulerian Comprehensive Air quality Model (CAMx4) were used to
evaluate dispersion of particulate matter (PM) generated by “Total” emissions for Christchurch (New
Zealand) f...
Sampling and Characterization of PM-fractions of Ambient Particulate Matter in Bangkok Utilizing a Cascade Virtual Impactor
environmental measurement cascade virtual impactor aerosol sampling PM-fractions chemical composition
2016/3/30
A cascade virtual impactor was developed and utilized for sampling and measurement of ambient
aerosols in size classes demarcated by particle aerodynamic diameters of 10m, 2.5m an...