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宜兴市臭氧和挥发性有机物的浓度特征研究
引用本文:王大春,陈璞珑,黄图南,束蕾,王体健.宜兴市臭氧和挥发性有机物的浓度特征研究[J].环境监控与预警,2017,9(3):56-61.
作者姓名:王大春  陈璞珑  黄图南  束蕾  王体健
作者单位:1. 宜兴市环境监测站,江苏 宜兴,214206;2. 南京大学大气科学学院,江苏 南京,210023;3. 南京大学环境规划设计研究院有限公司,江苏 南京,210093
基金项目:国家自然科学基金资助项目(91544230)
摘    要:于2016年对宜兴市大气挥发性有机物(VOCs)和臭氧(O_3)的变化特征进行了分析。结果表明,宜兴市O3年均值为62.92μg/m~3,其中冬季值最低(31.19μg/m~3),夏季值最高(94.96μg/m~3)。φ(VOCs)为(11.00~42.45)×10~(-9),其中丙酮(12.7%)、乙酸乙酯(8.8%)和丙烯(3.3%)等在VOCs中占比位于前3位。各站点φ(甲苯)/φ(苯)2,全年的φ(甲苯)/φ(苯)φ(乙苯)/φ(苯)φ(间、对二甲苯)/φ(苯)。指出VOCs主要来源为有机溶剂和道路交通,并受到一定的外来输送影响。各站点φ(VOCs)/φ(NOx)为0.94~2.44,O3处于VOCs敏感区。

关 键 词:宜兴  挥发性有机物  臭氧
收稿时间:2017/4/5 0:00:00
修稿时间:2016/4/25 0:00:00

Study on Concentration Characteristics of O3 and VOCs in Yixing
WANG Da chun,CHEN Pu long,HUANG Tu nan,SHU Lei,WANG Ti jian.Study on Concentration Characteristics of O3 and VOCs in Yixing[J].Environmental Monitoring and Forewarning,2017,9(3):56-61.
Authors:WANG Da chun  CHEN Pu long  HUANG Tu nan  SHU Lei  WANG Ti jian
Abstract:In 2016, VOC samples were collected and analyzed in Yixing City, meanwhile, the real-time monitoring of ozone was carried out.The results show that the ozone concentration in Yixing is relatively high and it has obvious seasonal variation.In 2016, the annual concentration of O3 was 62.92 μg/m3 in Yixing, where there were the lowest O3 concentration (31.19 μg/m3) in winter and the highest O3 concentration (94.96 μg/m3) in summer.The concentration of VOCs was between (11.00~42.45)×10-9,acetone(12.7%), acetate(8.8%) and ethyl propylene(3.3%) made a great contribution to the total VOCs.The ratio of Toluene/Benzene of each site was greater than 2, which indicated that the main source of VOCs was organic solvent and road traffic.The annual ratios of Toluene/Benzene,Ethylbenzene/Benzene and Xylene/Benzene ranked in a descending order, which showed the concentration of VOCs in Yixing was affected by the external transportation.The ratio of VOCs to NOx was between 0.94~2.44, Yixing was in the VOCs sensitive area, which suggested that reduction of VOCs may lead to reduction of O3 level.
Keywords:Yixing  Volatile organic compounds  O3
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