| 南京北郊秋季PM2.5碳质组分污染特征及来源分析 |
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| 引用本文： | 徐足飞,曹芳,高嵩,鲍孟盈,石一凡,章炎麟,刘晓妍,范美益,张雯淇,卞航,刘寿东.南京北郊秋季PM2.5碳质组分污染特征及来源分析[J].环境科学,2018,39(7):3033-3041. |
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| 作者姓名： | 徐足飞 曹芳 高嵩 鲍孟盈 石一凡 章炎麟 刘晓妍 范美益 张雯淇 卞航 刘寿东 |
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| 作者单位： | 南京信息工程大学大气环境中心;江苏省电力公司电力科学研究院;南京信息工程大学气象灾害预报预警与评估协同创新中心江苏省农业气象重点实验室 |
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| 基金项目： | 国家重点研发计划项目（2017YFC0212700）；国家自然科学基金青年科学基金项目（41603104）；国家自然科学基金重大研究计划培育项目（91644103）；江苏省自然科学基金青年基金项目（BK20150895） |
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| 摘 要： | 本研究于2015年10~11月在南京北郊分昼夜采集PM_(2.5)样品,采用热光透射法(TOT)和离子色谱法对样品中的有机碳(OC)/元素碳(EC)和左旋葡聚糖(levoglucosan)的质量浓度特征进行分析.观测期间OC和EC的平均浓度分别为(11.3±4.9)μg·m-3和(1.1±0.9)μg·m-3,总碳TC占PM_(2.5)的质量分数为22.9%,OC/EC的平均值为7.4,SOC占OC的质量分数为51.9%.PM_(2.5)、OC、EC和SOC质量浓度都体现出夜晚白天的特征,白天OC和EC的相关性好于夜晚(相关性系数分别为0.86和0.7).通过分析PM_(2.5)、左旋葡聚糖和SOC质量浓度以及后向轨迹和火点数据可知南京北郊在13~16号受到来自河北等地生物质燃烧远距离输送的影响.采样期间K+和左旋葡聚糖与OC、EC和SOC的相关性显著(相关性系数分别为0.78、0.79和0.65),经受体示踪物方法估算采样期间生物质燃烧对OC的贡献为21.9%.
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| 关 键 词： | PM2.5 有机碳(OC) 元素碳(EC) 生物质燃烧 左旋葡聚糖 |
| 收稿时间： | 2017/11/27 0:00:00 |
| 修稿时间： | 2018/1/4 0:00:00 |
Characteristics and Source Analysis of Carbonaceous Components of PM2.5 During Autumn in the Northern Suburb of Nanjing |
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| XU Zu-fei,CAO Fang,GAO Song,BAO Meng-ying,SHI Yi-fan,ZHANG Yan-lin,LIU Xiao-yan,FAN Mei-yi,ZHANG Wen-qi,BIAN Hang and LIU Shou-dong.Characteristics and Source Analysis of Carbonaceous Components of PM2.5 During Autumn in the Northern Suburb of Nanjing[J].Chinese Journal of Environmental Science,2018,39(7):3033-3041. |
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| Authors: | XU Zu-fei CAO Fang GAO Song BAO Meng-ying SHI Yi-fan ZHANG Yan-lin LIU Xiao-yan FAN Mei-yi ZHANG Wen-qi BIAN Hang and LIU Shou-dong |
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| Institution: | Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Electric Power Company Research Institute, Nanjing 210000, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China,Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China and Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | |
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| Keywords: | PM2 5 organic carbon(OC) elemental carbon(EC) biomass burning levoglucosan |
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