减排管控期厦门市大气中挥发性有机物浓度变化特征及来源分析

引用本文: 庄壹, 成春雷, 翁翔, 陈进生, 吕效谱, 李梅, 周振. 减排管控期厦门市大气中挥发性有机物浓度变化特征及来源分析[J]. 分析化学, 2019, 47(6): 890-898. doi: 10.19756/j.issn.0253-3820.181670 shu

Citation: ZHUANG Yi, CHENG Chun-Lei, WENG Xiang, CHEN Jin-Sheng, LYU Xiao-Pu, LI Mei, ZHOU Zhen. Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds During Emission Control Period in Xiamen[J]. Chinese Journal of Analytical Chemistry, 2019, 47(6): 890-898. doi: 10.19756/j.issn.0253-3820.181670 shu

减排管控期厦门市大气中挥发性有机物浓度变化特征及来源分析

庄壹 ^1, ,
成春雷 ^1, ,
翁翔 ^2, ,
陈进生 ^3, ,
吕效谱 ^4, ,
李梅 ^1, ,
周振 ^1,

1.
暨南大学质谱仪器与大气环境研究所, 广州 510632;
2.
广州禾信仪器股份有限公司, 广州 510530;
3.
中国科学院城市环境研究所城市环境与健康重点实验室, 厦门 361021;
4.
香港理工大学土木与环境工程系, 香港
基金项目:
本文系国家重点研发专项（No.2016YFC0208503）、国家自然科学基金项目（Nos.21607056，91544226）和大气重污染成因与治理攻关项目（No.DQGG0107）资助

摘要: 为研究大气减排管控措施对厦门市大气中挥发性有机物（Volatile organic compounds，VOCs）浓度及来源的影响，评估VOCs减排效果，于2017年8月28日至9月13日在厦门市中国科学院城市环境研究所（郊区站）使用VOCs在线监测仪器（AC-GCMS 1000）对金砖会议期间及前后厦门市大气挥发性有机物进行监测和分析。结果表明，金砖会议前、中、后时间段的总挥发性有机物（TVOCs）体积浓度分别为（19.09±9.65）×10^-9（V/V）、（9.39±3.35）×10^-9（V/V）和（14.88±9.68）×10^-9（V/V）。会议期间TVOCs较会议前分别下降51%和37%，其中含氧挥发性有机物（OVOCs）下降比例为90%，芳香烃与烯烃分别下降53%和38%，这3类VOCs均下降超过30%。会议前、中、后时间段总臭氧生成潜势（OFP）分别为162.06、77.14和121.45 μg/m³，二次有机气溶胶生成潜势（SOAP）分别为2.14、1.65和1.93 ng/m³，会议期间OFP与SOAP较会议前分别下降52%和23%，芳香烃和烯烃为生成OFP的关键物种，芳香烃对SOA的生成起主导作用。PMF模型共解析出5个污染源，分别为机动车尾气源、植物排放源、溶剂使用源、油品挥发源和背景源，溶剂使用源为整个监测期间VOCs最大贡献源（32%），其质量浓度较会议前下降76%。本研究结果表明，控制溶剂使用源和机动车尾气排放源，会显著降低主要VOCs物种的浓度，对后续控制O₃生成及潜在SOA的产量有显著效果。本研究为厦门市及其它地区的VOCs污染控制提供了合理有效的参考。

关键词:

English

Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds During Emission Control Period in Xiamen

1.
Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China;
2.
Guangzhou HeXin Instrument Co., LTD., Guangzhou 510530, China;
3.
Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;
4.
School of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Received Date: 23 October 2018
Fund Project:
This work was supported by the National Key Research and Develpment Program of China (No.2016YFC0208503), the National Natural Science Foundation of China (Nos. 21607056, 91544226) and the National Research Program for Key Issues in Air Pollution Control (No. DQGG0107).

Abstract: To investigate the characteristics and source apportionment of volatile organic compounds (VOCs) during the BRICS Conference in Xiamen and evaluate the effects of source control and mitigation policies, a online monitoring instrument (AC-GCMS 1000) was used to monitor VOCs, from August 28, 2017 to September 13 in the institute of Xiamen City, Chinese Academy of Sciences. The results showed that the concentrations of total volatile organic compounds (TVOCs) were (19.09±9.65)×10^-9(V/V), (9.39±3.35)×10^-9(V/V), (14.88±9.68)×10^-9(V/V) before, during and after the conference, respectively. During the BRICS Conference, TVOCs decreased by 51% and 37% compared with that of before and after the conference. Specifically, the oxygen volatile organic compounds (OVOCs), aromatics and alkenes, were decreased by 90%, 53% and 38% respectively. The ozone formation potential (OFP) was the highest before the conference (162.06 μg/m³), followed by that after (121.45 μg/m³) and during (77.14 μg/m³) conference. The same pattern was identified for the secondary organic aerosols potential (SOAP), which was calculated as 2.14, 1.65 and 1.93 mg/m³, respectively. Overall, both OFP and SOAP were decreased by 52% and 23%, respectively. Aromatics and Alkenes were the key contributors of OFP. Aromatics played a leading role in the formation of SOA. Five emission sources of VOCs were identified by PMF model, including vehicle exhaust, biogenic VOCs, solvent utilization, gasoline evaporation and the background VOCs. The solvent utilization source was the largest contributor of VOCs during the Xiamen BRICS Conference (32%), which was decreased by 76% compared with that before the conference. The results of this study show that the mitigation of solvent utilization and vehicle exhaust can significantly reduce the concentrations of major VOCs species, and have a great effect on the subsequent control of O₃ and SOA production. This work suggests an effective direction to control VOCs emission in Xiamen and other areas.

Key words:

Volatile organic compounds
/ Xiamen BRICS conference
/ Change characteristics of concentration
/ Source apportionment
/ Emission reduction control measures

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沈阳化工大学材料科学与工程学院沈阳 110142

减排管控期厦门市大气中挥发性有机物浓度变化特征及来源分析

English

Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds During Emission Control Period in Xiamen

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

减排管控期厦门市大气中挥发性有机物浓度变化特征及来源分析

English

Characteristics and Source Apportionment of Atmospheric Volatile Organic Compounds During Emission Control Period in Xiamen

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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