| 基于硫碳同位素研究南京北郊冬季霾事件中PM2.5来源 |
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| 引用本文： | 陈善莉,韩珣,赵云卿,张海潇,周一鸣,郭安可,郭照冰.基于硫碳同位素研究南京北郊冬季霾事件中PM2.5来源[J].中国环境监测,2018,34(4):60-67. |
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| 作者姓名： | 陈善莉 韩珣 赵云卿 张海潇 周一鸣 郭安可 郭照冰 |
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| 作者单位： | 南京信息工程大学大气物理学院;江苏省大气环境监测与污染控制高技术研究重点实验室;南京信息工程大学环境科学与工程学院 |
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| 摘 要： | 2015年12月27日—2016年1月6日,针对南京北郊地区一次霾事件所采PM_(2.5)样品,测定样品中水溶性离子、硫同位素与碳同位素组分含量。水溶性离子研究结果表明:该次霾事件以二次污染为主且移动源占主要地位。硫同位素分析结果表明:硫酸盐的δ~(34)S(SO_4~(2-))值的范围为4.4‰~6.8‰,平均值为5.7‰±0.7‰(n=11),结合该地潜在硫源可知,此次霾事件中硫酸盐气溶胶主要来源为机动车尾气及煤炭燃烧。PM_(2.5)中的δ~(13)C值变化范围为-28.43‰~-24.94‰,平均值为-26.62‰±1.11‰,说明碳质污染物来源主要为机动车尾气、燃煤。此外,硫、碳同位素具有较好的负相关性,结合潜在硫源、碳源可知,2016年1月1日之前,南京北郊地区大气污染源以汽油车尾气排放为主;1月1日之后大气污染源以柴油车尾气和燃煤排放为主。
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| 关 键 词： | 霾事件 PM2.5 硫同位素 碳同位素 来源 |
| 收稿时间： | 2018/4/18 0:00:00 |
| 修稿时间： | 2018/6/1 0:00:00 |
Investigations on PM2.5 Sources in Winter Haze Event in the Northern Suburb of Nanjing Based on Sulfur and Carbon Isotope |
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| CHEN Shanli,HAN Xun,ZHAO Yunqing,ZHANG Haixiao,ZHOU Yiming,GUO Anke and GUO Zhaobing.Investigations on PM2.5 Sources in Winter Haze Event in the Northern Suburb of Nanjing Based on Sulfur and Carbon Isotope[J].Environmental Monitoring in China,2018,34(4):60-67. |
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| Authors: | CHEN Shanli HAN Xun ZHAO Yunqing ZHANG Haixiao ZHOU Yiming GUO Anke and GUO Zhaobing |
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| Institution: | School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China,Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China and Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | |
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| Keywords: | haze event PM2 5 sulfur isotope carbon isotope source |
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