| 南京冬季重污染过程中黑碳气溶胶的混合态及粒径分布 |
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| 引用本文： | 蒋磊,汤莉莉,潘良宝,刘丹彤,花艳,张运江,周宏仓,崔玉航.南京冬季重污染过程中黑碳气溶胶的混合态及粒径分布[J].环境科学,2017,38(1):13-21. |
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| 作者姓名： | 蒋磊 汤莉莉 潘良宝 刘丹彤 花艳 张运江 周宏仓 崔玉航 |
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| 作者单位： | 南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044;江苏省环境监测中心, 南京 210036,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044;江苏省环境监测中心, 南京 210036,Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester M139PL, UK,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044,南京信息工程大学环境科学与工程学院, 江苏省大气环境与装备技术协同创新中心, 南京 210044 |
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| 摘 要： | 2013年12月,我国中东部地区暴发持续性重污染过程.本研究利用单颗粒黑碳光度计(SP2),分析这次过程中黑碳气溶胶(BC)的质量浓度、混合态以及粒径分布特征.结果表明,观测期间南京BC质量浓度在1.01~14.05μg·m-3之间,平均为4.39μg·m-3,污染较重时呈现夜间高白天低的日变化特征,污染较轻时则为早晚双峰型;用相对包裹层厚度(Dp/Dc)表示BC混合态特征,污染较轻时日变化为凌晨及午后较高,早晚出行高峰期较低,说明在凌晨及午后BC的老化程度较深,早晚机动车排放高峰时段BC多为近地源排放的新鲜粒子.污染较重时Dp/Dc日变化相对平缓,区域性污染特征更为明显并在高相对湿度下体现出气-固转化的过程;BC质量和数谱的粒径分布均为单峰型,数谱峰值粒径在污染较轻时分布在91 nm左右,污染较重时为100 nm,不同污染程度下质量谱峰值粒径均为210 nm,通过对比全球范围的观测结果可以体现出BC一次源的区域性差异.本研究对深入认识长三角地区大气BC污染特征,具有重要的参考价值.
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| 关 键 词： | 黑碳 南京 单颗粒黑碳光度计(SP2) 混合态 粒径分布 |
| 收稿时间： | 2016/5/16 0:00:00 |
| 修稿时间： | 8/6/2016 12:00:00 AM |
Size Distribution and Mixing State of Black Carbon Aerosol in Nanjing During a Heavy Winter Pollution Event |
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| JIANG Lei,TANG Li-li,PAN Liang-bao,LIU Dan-tong,HUA Yan,ZHANG Yun-jiang,ZHOU Hong-cang and CUI Yu-hang.Size Distribution and Mixing State of Black Carbon Aerosol in Nanjing During a Heavy Winter Pollution Event[J].Chinese Journal of Environmental Science,2017,38(1):13-21. |
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| Authors: | JIANG Lei TANG Li-li PAN Liang-bao LIU Dan-tong HUA Yan ZHANG Yun-jiang ZHOU Hong-cang and CUI Yu-hang |
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| Institution: | Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China;Jiangsu Environmental Monitoring Center, Nanjing 210036, China,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China;Jiangsu Environmental Monitoring Center, Nanjing 210036, China,Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester M139PL, UK,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China and Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET), School of Environmental Science and Engineering, University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | |
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| Keywords: | black carbon Nanjing single particle soot photometer (SP2) mixing state size distribution |
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