Characteristic changes of ozone and its precursors in London during COVID-19 lockdown and the ozone surge reason analysis

被引：22

作者：

Zhang, Chenyue ^{[1
,2
]}

Stevenson, David ^{[1
]}

机构：

[1] Univ Edinburgh, Sch Geosci, Edinburgh EH9 3FF, Scotland

[2] Northwest Univ, Coll Urban & Environm Sci, Xi'an 710127, Shaanxi, Peoples R China

来源：

ATMOSPHERIC ENVIRONMENT | 2022年 / 273卷

关键词：

COVID-19; lockdown; Sensitivity analysis; VOC-Limited regime; POLLUTION;

D O I：

10.1016/j.atmosenv.2022.118980

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The London COVID-19 lockdown reduced emissions from anthropogenic sources, providing unique conditions for air contamination research. This research uses tropospheric ozone (O-3), volatile organic compounds (VOCs) and NOx (NO+NO2) hourly monitoring data at the London Marylebone Road station from 2001 to 2020 to investigate the effects of lockdown on (O-3) and its precursors. Both NOx and VOCs pollution showed a decreasing trend between 2001 and 2021, with a gradual increase in O-3 in contrast. During the COVID-19 lockdown period (from 23rd March to July 4, 2020), there was a surge in O-3 concentration, accompanied by a sharp reduction in NOx concentrations. Because all the monitoring VOCs/NOx results were less than eight during the lockdown, indicating that O-3 formation in urban London was in the VOC-limited regime. The rapid increase in O-3 concentrations caused by the lockdown was closely related to the rapid decrease in NOx emissions.

引用

页数：9

共 45 条

[11]

Defra, 2020, NAT AIR QUAL OBJ EUR

[12]

Defra, 2021, AUT URB RUR NETW AUR

[13]

Defra, 2021, AUT HYDR NETW

[14]

Eea, 2016, CONS REP

[15] A chronology of global air quality [J].

Fowler, David ;

Brimblecombe, Peter ;

Burrows, John ;

Heal, Mathew R. ;

Grennfelt, Peringe ;

Stevenson, David S. ;

Jowett, Alan ;

Nemitz, Eiko ;

Coyle, Mhairi ;

Lui, Xuejun ;

Chang, Yunhua ;

Fuller, Gary W. ;

Sutton, Mark A. ;

Klimont, Zbigniew ;

Unsworth, Mike H. ;

Vieno, Massimo .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2020, 378 (2183)

[16] Tropospheric Ozone Assessment Report: Present-day distribution and trends of tropospheric ozone relevant to climate and global atmospheric chemistry model evaluation [J].

Gaudel, A. ;

Cooper, O. R. ;

Ancellet, G. ;

Barret, B. ;

Boynard, A. ;

Burrows, J. P. ;

Clerbaux, C. ;

Coheur, P. -F. ;

Cuesta, J. ;

Cuevas, E. ;

Doniki, S. ;

Dufour, G. ;

Ebojie, F. ;

Foret, G. ;

Garcia, O. ;

Granados-Munoz, M. J. ;

Hannigan, J. W. ;

Hase, F. ;

Hassler, B. ;

Huang, G. ;

Hurtmans, D. ;

Jaffe, D. ;

Jones, N. ;

Kalabokas, P. ;

Kerridge, B. ;

Kulawik, S. ;

Latter, B. ;

Leblanc, T. ;

Le Flochmoen, E. ;

Lin, W. ;

Liu, J. ;

Liu, X. ;

Mahieu, E. ;

McClure-Begley, A. ;

Neu, J. L. ;

Osman, M. ;

Palm, M. ;

Petetin, H. ;

Petropavlovskikh, I. ;

Querel, R. ;

Rahpoe, N. ;

Rozanov, A. ;

Schultz, M. G. ;

Schwab, J. ;

Siddans, R. ;

Smale, D. ;

Steinbacher, M. ;

Tanimoto, H. ;

Tarasick, D. W. ;

Thouret, V. .

ELEMENTA-SCIENCE OF THE ANTHROPOCENE, 2018, 6

[17] COVID-19 lockdowns highlight a risk of increasing ozone pollution in European urban areas [J].

Grange, Stuart K. ;

Lee, James D. ;

Drysdale, Will S. ;

Lewis, Alastair C. ;

Hueglin, Christoph ;

Emmenegger, Lukas ;

Carslaw, David C. .

ATMOSPHERIC CHEMISTRY AND PHYSICS, 2021, 21 (05) :4169-4185

[18]

Jaganmohan M., 2021, COUNTRIES HIGHEST DI

[19] Ozone flux and ozone deposition in a mountain spruce forest are modulated by sky conditions [J].

Juran, Stanislav ;

Sigut, Ladislav ;

Holub, Petr ;

Fares, Silvano ;

Klem, Karel ;

Grace, John ;

Urban, Otmar .

SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 672 :296-304

[20] State of the UK climate 2018 [J].

Kendon, Mike ;

McCarthy, Mark ;

Jevrejeva, Svetlana ;

Matthews, Andrew ;

Legg, Tim .

INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2019, 39 (S1) :1-55

← 1 2 3 4 5 →