Overview on the spatial-temporal characteristics of the ozone formation regime in China

Haoxian Lu; Xiaopu Lyu; Hairong Cheng; Zhenhao Ling; Hai Guo

doi:10.1039/c9em00098d

Overview on the spatial-temporal characteristics of the ozone formation regime in China

Haoxian Lu, Xiaopu Lyu, Hairong Cheng, Zhenhao Ling, Hai Guo^*

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

142 Citations (Scopus)

Abstract

Ozone (O₃), a main component in photochemical smog, is a secondary pollutant formed through complex photochemical reactions involving nitrogen oxides (NO_x) and volatile organic compounds (VOCs). In the past few decades, with the rapid economic development, industrialization and urbanization, the mixing ratio of O₃ has increased substantially in China. O₃ non-attainment days have been frequently observed. Despite great efforts made in the past few years, it is still difficult to alleviate O₃ pollution in China, due to its non-linear relationship with the precursors. In view of the severe situation in China, this study presents a comprehensive review on the spatial-temporal variations of the relationship between O₃ and its precursors (i.e. O₃ formation regime), built upon the previous reviews of the spatial-temporal variations of O₃ and its precursor levels. Valuable findings from previous studies are laid out for a better understanding of O₃ pollution, followed by implications for the control of O₃ pollution. This literature review indicates that O₃ formation in most areas of the North China Plain (NCP), Yangtze River Delta (YRD) and Pearl River Delta (PRD) regions is in a VOC-limited regime during the high-O₃ seasons due to dramatic emissions from human activities in cities. Outside these metropolitan areas, a NO_x-limited regime dominates rural/remote areas. From summer to winter, the O₃ formation regime over China shows a tendency to shift to a VOC-limited regime. Furthermore, O₃ formation in China shifted toward increasing sensitivity to VOC emissions before the 12^th Five-Year-Plan. However, after the 12^th Five-Year-Plan, successful reduction of NO_x slowed down this trend. Further effective control of VOCs is expected to achieve sustained O₃ attainment in the future. To timely solve the current O₃ pollution problem, precise control of O₃ precursors is proposed, together with the joint prevention and control of regional air pollution.

Original language	English
Pages (from-to)	916-929
Number of pages	14
Journal	Environmental Science: Processes and Impacts
Volume	21
Issue number	6
Early online date	22 Apr 2019
DOIs	https://doi.org/10.1039/c9em00098d
Publication status	Published - Jun 2019

Scopus Subject Areas

Environmental Chemistry
Public Health, Environmental and Occupational Health
Management, Monitoring, Policy and Law

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

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10.1039/c9em00098d

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@article{d419ffb361314db29bfe425e8fff23b0,

title = "Overview on the spatial-temporal characteristics of the ozone formation regime in China",

abstract = "Ozone (O3), a main component in photochemical smog, is a secondary pollutant formed through complex photochemical reactions involving nitrogen oxides (NOx) and volatile organic compounds (VOCs). In the past few decades, with the rapid economic development, industrialization and urbanization, the mixing ratio of O3 has increased substantially in China. O3 non-attainment days have been frequently observed. Despite great efforts made in the past few years, it is still difficult to alleviate O3 pollution in China, due to its non-linear relationship with the precursors. In view of the severe situation in China, this study presents a comprehensive review on the spatial-temporal variations of the relationship between O3 and its precursors (i.e. O3 formation regime), built upon the previous reviews of the spatial-temporal variations of O3 and its precursor levels. Valuable findings from previous studies are laid out for a better understanding of O3 pollution, followed by implications for the control of O3 pollution. This literature review indicates that O3 formation in most areas of the North China Plain (NCP), Yangtze River Delta (YRD) and Pearl River Delta (PRD) regions is in a VOC-limited regime during the high-O3 seasons due to dramatic emissions from human activities in cities. Outside these metropolitan areas, a NOx-limited regime dominates rural/remote areas. From summer to winter, the O3 formation regime over China shows a tendency to shift to a VOC-limited regime. Furthermore, O3 formation in China shifted toward increasing sensitivity to VOC emissions before the 12th Five-Year-Plan. However, after the 12th Five-Year-Plan, successful reduction of NOx slowed down this trend. Further effective control of VOCs is expected to achieve sustained O3 attainment in the future. To timely solve the current O3 pollution problem, precise control of O3 precursors is proposed, together with the joint prevention and control of regional air pollution.",

author = "Haoxian Lu and Xiaopu Lyu and Hairong Cheng and Zhenhao Ling and Hai Guo",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

month = jun,

doi = "10.1039/c9em00098d",

language = "English",

volume = "21",

pages = "916--929",

journal = "Environmental Science: Processes and Impacts",

issn = "2050-7887",

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T1 - Overview on the spatial-temporal characteristics of the ozone formation regime in China

AU - Lu, Haoxian

AU - Lyu, Xiaopu

AU - Cheng, Hairong

AU - Ling, Zhenhao

AU - Guo, Hai

PY - 2019/6

Y1 - 2019/6

N2 - Ozone (O3), a main component in photochemical smog, is a secondary pollutant formed through complex photochemical reactions involving nitrogen oxides (NOx) and volatile organic compounds (VOCs). In the past few decades, with the rapid economic development, industrialization and urbanization, the mixing ratio of O3 has increased substantially in China. O3 non-attainment days have been frequently observed. Despite great efforts made in the past few years, it is still difficult to alleviate O3 pollution in China, due to its non-linear relationship with the precursors. In view of the severe situation in China, this study presents a comprehensive review on the spatial-temporal variations of the relationship between O3 and its precursors (i.e. O3 formation regime), built upon the previous reviews of the spatial-temporal variations of O3 and its precursor levels. Valuable findings from previous studies are laid out for a better understanding of O3 pollution, followed by implications for the control of O3 pollution. This literature review indicates that O3 formation in most areas of the North China Plain (NCP), Yangtze River Delta (YRD) and Pearl River Delta (PRD) regions is in a VOC-limited regime during the high-O3 seasons due to dramatic emissions from human activities in cities. Outside these metropolitan areas, a NOx-limited regime dominates rural/remote areas. From summer to winter, the O3 formation regime over China shows a tendency to shift to a VOC-limited regime. Furthermore, O3 formation in China shifted toward increasing sensitivity to VOC emissions before the 12th Five-Year-Plan. However, after the 12th Five-Year-Plan, successful reduction of NOx slowed down this trend. Further effective control of VOCs is expected to achieve sustained O3 attainment in the future. To timely solve the current O3 pollution problem, precise control of O3 precursors is proposed, together with the joint prevention and control of regional air pollution.

AB - Ozone (O3), a main component in photochemical smog, is a secondary pollutant formed through complex photochemical reactions involving nitrogen oxides (NOx) and volatile organic compounds (VOCs). In the past few decades, with the rapid economic development, industrialization and urbanization, the mixing ratio of O3 has increased substantially in China. O3 non-attainment days have been frequently observed. Despite great efforts made in the past few years, it is still difficult to alleviate O3 pollution in China, due to its non-linear relationship with the precursors. In view of the severe situation in China, this study presents a comprehensive review on the spatial-temporal variations of the relationship between O3 and its precursors (i.e. O3 formation regime), built upon the previous reviews of the spatial-temporal variations of O3 and its precursor levels. Valuable findings from previous studies are laid out for a better understanding of O3 pollution, followed by implications for the control of O3 pollution. This literature review indicates that O3 formation in most areas of the North China Plain (NCP), Yangtze River Delta (YRD) and Pearl River Delta (PRD) regions is in a VOC-limited regime during the high-O3 seasons due to dramatic emissions from human activities in cities. Outside these metropolitan areas, a NOx-limited regime dominates rural/remote areas. From summer to winter, the O3 formation regime over China shows a tendency to shift to a VOC-limited regime. Furthermore, O3 formation in China shifted toward increasing sensitivity to VOC emissions before the 12th Five-Year-Plan. However, after the 12th Five-Year-Plan, successful reduction of NOx slowed down this trend. Further effective control of VOCs is expected to achieve sustained O3 attainment in the future. To timely solve the current O3 pollution problem, precise control of O3 precursors is proposed, together with the joint prevention and control of regional air pollution.

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DO - 10.1039/c9em00098d

M3 - Review article

C2 - 31089656

AN - SCOPUS:85067551047

SN - 2050-7887

VL - 21

SP - 916

EP - 929

JO - Environmental Science: Processes and Impacts

JF - Environmental Science: Processes and Impacts

IS - 6

ER -

Overview on the spatial-temporal characteristics of the ozone formation regime in China

Abstract

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