深圳西部城区大气O3污染特征及超标成因

Chuan Wang; Shi Yong Xia; Li Ming Cao; Guang He Yu; Xiao Feng Huang

doi:10.19674/j.cnki.issn1000-6923.2020.0156

深圳西部城区大气O₃污染特征及超标成因

Translated title of the contribution: Study on the characteristics and the cause of atmospheric O₃ pollution in western urban of Shenzhen

Chuan Wang, Shi Yong Xia, Li Ming Cao, Guang He Yu^*, Xiao Feng Huang

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

18 Citations (Scopus)

Abstract

Based on the online monitoring data of atmospheric O₃ at University Town that located in the western Shenzhen in the past 5years, combined with the comprehensive observation of atmospheric pollutants, the evolution trend of atmospheric O₃ was obtained. In addition, the variations of meteorological conditions and the precursor's composition of O₃ during the exceeding standard periods were deeply explored in order to grasp the causes. The resultsshow that the increase rate of the maximum 8-hour average mixing ratio of atmospheric O₃ was 1.1×10^-9/a, and the exceed-standard rate was over 6%. High temperature and low humidity meteorological conditions were more likely to promote atmospheric O₃ formation. The increase of VOCs in the O₃ exceeding standard periods (70%~95%) was significantly higher than that of NO_x (28%), and the O₃ high concentration was distributed in the high VOCs and low NO_x region, indicating that the O₃ formation was mainly controlled by VOCs in University Town of Shenzhen. The toluene to benzene ratio (T/B) over 10at night during the O₃ exceeding standard periods suggesting that there may be a large amount of industrial emissions, while the consumption of OVOCs doubled at noon, indicating that OVOCs emitted by industrial activities may contribute significantly to daytime O₃ production.

Translated title of the contribution	Study on the characteristics and the cause of atmospheric O₃ pollution in western urban of Shenzhen
Original language	Chinese (Traditional)
Pages (from-to)	1414-1420
Number of pages	7
Journal	Zhongguo Huanjing Kexue/China Environmental Science
Volume	40
Issue number	4
DOIs	https://doi.org/10.19674/j.cnki.issn1000-6923.2020.0156
Publication status	Published - 20 Apr 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020, Editorial Board of China Environmental Science. All right reserved.

Keywords

Exceed-standard
O
Trend
VOCs

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.19674/j.cnki.issn1000-6923.2020.0156

Cite this

@article{21062db0a4214f618fad4f73324f41da,

title = "深圳西部城区大气O3污染特征及超标成因",

abstract = "Based on the online monitoring data of atmospheric O3 at University Town that located in the western Shenzhen in the past 5years, combined with the comprehensive observation of atmospheric pollutants, the evolution trend of atmospheric O3 was obtained. In addition, the variations of meteorological conditions and the precursor's composition of O3 during the exceeding standard periods were deeply explored in order to grasp the causes. The resultsshow that the increase rate of the maximum 8-hour average mixing ratio of atmospheric O3 was 1.1×10-9/a, and the exceed-standard rate was over 6\%. High temperature and low humidity meteorological conditions were more likely to promote atmospheric O3 formation. The increase of VOCs in the O3 exceeding standard periods (70\%\textasciitilde{}95\%) was significantly higher than that of NOx (28\%), and the O3 high concentration was distributed in the high VOCs and low NOx region, indicating that the O3 formation was mainly controlled by VOCs in University Town of Shenzhen. The toluene to benzene ratio (T/B) over 10at night during the O3 exceeding standard periods suggesting that there may be a large amount of industrial emissions, while the consumption of OVOCs doubled at noon, indicating that OVOCs emitted by industrial activities may contribute significantly to daytime O3 production.",

keywords = "Exceed-standard, O, Trend, VOCs",

author = "Chuan Wang and Xia, \{Shi Yong\} and Cao, \{Li Ming\} and Yu, \{Guang He\} and Huang, \{Xiao Feng\}",

year = "2020",

month = apr,

day = "20",

doi = "10.19674/j.cnki.issn1000-6923.2020.0156",

language = "Chinese (Traditional)",

volume = "40",

pages = "1414--1420",

journal = "Zhongguo Huanjing Kexue/China Environmental Science",

issn = "1000-6923",

publisher = "Tsinghua University",

number = "4",

}

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T1 - 深圳西部城区大气O3污染特征及超标成因

AU - Wang, Chuan

AU - Xia, Shi Yong

AU - Cao, Li Ming

AU - Yu, Guang He

AU - Huang, Xiao Feng

PY - 2020/4/20

Y1 - 2020/4/20

N2 - Based on the online monitoring data of atmospheric O3 at University Town that located in the western Shenzhen in the past 5years, combined with the comprehensive observation of atmospheric pollutants, the evolution trend of atmospheric O3 was obtained. In addition, the variations of meteorological conditions and the precursor's composition of O3 during the exceeding standard periods were deeply explored in order to grasp the causes. The resultsshow that the increase rate of the maximum 8-hour average mixing ratio of atmospheric O3 was 1.1×10-9/a, and the exceed-standard rate was over 6%. High temperature and low humidity meteorological conditions were more likely to promote atmospheric O3 formation. The increase of VOCs in the O3 exceeding standard periods (70%~95%) was significantly higher than that of NOx (28%), and the O3 high concentration was distributed in the high VOCs and low NOx region, indicating that the O3 formation was mainly controlled by VOCs in University Town of Shenzhen. The toluene to benzene ratio (T/B) over 10at night during the O3 exceeding standard periods suggesting that there may be a large amount of industrial emissions, while the consumption of OVOCs doubled at noon, indicating that OVOCs emitted by industrial activities may contribute significantly to daytime O3 production.

AB - Based on the online monitoring data of atmospheric O3 at University Town that located in the western Shenzhen in the past 5years, combined with the comprehensive observation of atmospheric pollutants, the evolution trend of atmospheric O3 was obtained. In addition, the variations of meteorological conditions and the precursor's composition of O3 during the exceeding standard periods were deeply explored in order to grasp the causes. The resultsshow that the increase rate of the maximum 8-hour average mixing ratio of atmospheric O3 was 1.1×10-9/a, and the exceed-standard rate was over 6%. High temperature and low humidity meteorological conditions were more likely to promote atmospheric O3 formation. The increase of VOCs in the O3 exceeding standard periods (70%~95%) was significantly higher than that of NOx (28%), and the O3 high concentration was distributed in the high VOCs and low NOx region, indicating that the O3 formation was mainly controlled by VOCs in University Town of Shenzhen. The toluene to benzene ratio (T/B) over 10at night during the O3 exceeding standard periods suggesting that there may be a large amount of industrial emissions, while the consumption of OVOCs doubled at noon, indicating that OVOCs emitted by industrial activities may contribute significantly to daytime O3 production.

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