论文总字数：27516字
目 录
摘要............................................................................................................1
Abstract.......................................................................................................2
1 引言........................................................................................................3
1.1 碳气溶胶................................................................................................................................3
1.2 国内外研究进展....................................................................................................................4
1.3 研究内容及意义....................................................................................................................5
2 实验与方法............................................................................................5
2.1实验方法.................................................................................................................................5
2.2实验仪器.................................................................................................................................6
3 结果与讨论............................................................................................7
3.1 气象和环境背景....................................................................................................................7
3.2 各功能区ECOC及碳组分浓度特征...................................................................................9
3.2.1 不同季节各功能区ECOC浓度特征............................................................................9
3.2.2 不同季节各功能区碳组分浓度特征...........................................................................11
3.2.3 冬、夏ECOC浓度及碳组分对比..............................................................................14
3.2.3.1 冬、夏ECOC浓度对比.......................................................................................14
3.2.3.2 冬、夏碳组分对比................................................................................................14
3.3 不同城市各功能区ECOC浓度特征.................................................................................15
4 总结......................................................................................................16
参考文献..................................................................................................17
已发表论文..............................................................................................21
致谢..........................................................................................................22
江北新区碳气溶胶的排放源特征的观测及评估
曹琪敏
, China
Abstract: In recent years, the fog and haze events caused by the continuous increase and a sharp rise in the short term in aerosol concentration have caused a great impact on the economic production and human health. To study the composition, pollution characteristics and sources of carbonaceous aerosols in different functional zones of Jiangbei District in winter and summer, the study conducted experiments of aerosol sampling in the five functional areas of Jiangbei District during the period from January 8 to January 22, 2016 and from July 2 to July 22, 2016. In the meantime, the meteorological parameters during the observation were also collected and the EC and OC chemical analysis experiment were conducted in the laboratory. The results show that: (1) The average concentrations of EC and OC in the agricultural areas, water traffic areas, commercial areas, highway traffic areas and industrial areas in Jiangbei District in winter were 4.1±2.7 and 16.1±6.4μg/m3, 3.5±2.7 and 12.3±5.9μg/m3, 2.8±1.2 and 13.6±3.5μg/m3, 3.7±1.6 and 12.9±2.6μg/m3, 4.5±2.1 and 12.7±4.0μg/m3, respectively and that in summer were 1.6±1.2 and 10.3±2.2μg/m3, 2.7±0.8 and 7.8±1.6μg/m3, 1.6±0.7 and 11.4±1.7μg/m3, 1.9±1.4 and 7.4±2.8μg/m3, 2.2±1.7 and 7.2±3.1μg/m3, respectively. (2) The contributions of OC and SOC in agricultural source were greater than any other source in winter and the contributions of EC and POC in industrial source were the greatest. EC accounted for the greatest proportion in PM2.5 in highway traffic area and OC accounted for the highest in the commercial areas. The contributions of SOC in agricultural areas were great in summer; The contributions of OC and POC in commercial areas were great; The contributions of EC in water traffic areas were great. (3) The overall TC concentration in each functional area in summer was higher than that in winter; the maximum concentration of EC and POC in winter were greater than that in summer; The concentrations of OC and SOC in agricultural areas both in winter and in summer were at a high level.
Key words: carbonaceous aerosol; functional area; organic carbon; element carbon; carbon component
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