Aggravated ozone pollution in the strong free convection boundary layer

被引：65

作者：

Tang, Guiqian ^{[1
,2
,8
]}

Liu, Yuting ^{[1
,8
]}

Huang, Xiao ^{[3
]}

Wang, Yinghong ^{[1
]}

Hu, Bo ^{[1
]}

Zhang, Yucui ^{[4
]}

Song, Tao ^{[1
]}

Li, Xiaolan ^{[5
]}

Wu, Shuang ^{[1
]}

Li, Qihua ^{[6
,7
]}

Kang, Yanyu ^{[6
,7
]}

Zhu, Zhenyu ^{[1
]}

Wang, Meng ^{[1
]}

Wang, Yiming ^{[1
,8
]}

Li, Tingting ^{[1
]}

Li, Xin ^{[1
]}

Wang, Yuesi ^{[1
,2
,8
]}

机构：

[1] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beifing 100029, Peoples R China

[2] Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China

[3] Hebei Normal Univ, HuiHua Coll, Shijiazhuang 050091, Hebei, Peoples R China

[4] Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Key Lab Agr Water Resources, Shijiazhuang 050021, Hebei, Peoples R China

[5] China Meteorol Adm, Inst Atmospher Environm, Shenyang 110166, Liaoning, Peoples R China

[6] Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China

[7] Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China

[8] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2021年 / 788卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Boundary layer; Forced convection; Free convection; Tethered balloon; Turbulence; GROUND-LEVEL OZONE; SURFACE OZONE; AIR-QUALITY; NORTHERN CHINA; EVOLUTION; BUDGET; TEMPERATURE; TRANSPORT; HOUSTON;

D O I：

10.1016/j.scitotenv.2021.147740

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Clarifying the relationship between meteorological factors and ozone can provide scientific support for ozone pollution prediction, but the effects of boundary layer meteorology, especially boundary layer height and turbulence, on ozone pollution are rarely studied. Here, ozone and its related meteorological factors were observed in summer in Shijiazhuang, a city with the most serious ozone pollution on the North China Plain. The forced and free convection boundary layers were classified using ground remote observations. After eliminating the forced convection condition, strong free convection conditions, exhibiting a high boundary layer height, high wind speed, strong turbulence and large-scale free convection velocity, were found to be beneficial for the aggravation of ozone pollution. Combined with the ozone profile detected by a tethered balloon, the ozone chemical budget was calculated using the differences in the column ozone concentrations between the morning and afternoon, and the results confirmed the impact of free convection intensity on ozone pollution. The change in ozone sensitivity from VOCs sensitivity to NOx sensitivity driven by strong free convection was the main reason for the deterioration of ozone pollution. This study clarified the impact of boundary layer meteorology on ozone and its sensitivity and has important practical significance for ozone pollution prevention and early warning. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：7

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