廊坊市大气污染特征与污染物排放源研究

发布时间：2018-05-18 22:21

本文选题：大气污染 + 排放清单　；参考：《环境科学学报》2017年02期

【摘要】：通过廊坊市2014年12个监测站点的大气污染物监测数据,分析了廊坊市大气污染的主要特征,包括空气质量水平、大气污染的季节与空间分布.结果发现,虽然与2013年相比2014年空气质量有所改善,但12个站点空气质量超标均十分严重.秋季、冬季与春季PM_(2.5)为主要的空气污染物,夏季O3日最大8 h平均浓度频繁超标,需要引起重视.为实现廊坊市空气质量模拟,制定最优空气质量改善政策,基于污染源普查、环境统计数据,编制了廊坊市主要大气污染物排放清单.工业部门中,电力、热力生产和供应业、黑色金属冶炼及压延加工业是SO_2、NO_x和PM_(2.5)的重要来源.VOCs则主要来自于化学原料和化学制品制造业、黑色金属冶炼及压延加工业、食品制造业.另外,廊坊全市道路扬尘和建筑施工扬尘污染贡献了PM2.5的38.6%,但扬尘的管理十分薄弱.同时结果表明,廊坊市黄标车排放在交通源排放中比重较高.因此,需要对上述重点排放源进行有效控制,从而改善廊坊市空气质量.
[Abstract]:Based on the monitoring data of atmospheric pollutants from 12 monitoring stations in Langfang in 2014, the main characteristics of air pollution in Langfang city were analyzed, including the level of air quality, the season and spatial distribution of air pollution. The results showed that although air quality improved in 2014 compared with 2013, the air quality of 12 stations exceeded the standard seriously. In autumn, winter and spring, PMmatter 2.5) is the main air pollutant. The maximum daily average concentration of O _ 3 in summer frequently exceeds the standard, so attention should be paid to it. In order to realize air quality simulation in Langfang city and make the best air quality improvement policy, based on the general survey of pollution sources and environmental statistics, the emission inventory of main atmospheric pollutants in Langfang city was compiled. In the industrial sector, the electricity, thermal production and supply industries, the ferrous metal smelting and calender processing industries are important sources of SOS _ 2Nox and PMSP _ 2.5). VOCs are mainly from the chemical raw materials and chemical products manufacturing industry, the ferrous metal smelting and calendering industries, and so _ _ _, Food manufacturing In addition, the pollution of road dust and construction dust in Langfang contributed 38.6% of PM2.5, but the management of dust was very weak. At the same time, the results show that Langfang yellow standard vehicle emissions in the traffic source emissions a high proportion. Therefore, it is necessary to effectively control the above key emission sources to improve air quality in Langfang City.
【作者单位】：清华大学地球系统科学系;北京美科思远环境科技有限公司;国家环境分析测试中心;清华大学环境学院;廊坊市环境保护局;
【基金】：中国博士后基金项目(No.2014M560984)~~
【分类号】：X51

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