Ground-level ozone pollution in China: A synthesis of recent findings on influencing factors and impacts

Tao Wang, Likun Xue, Zhaozhong Feng, Jianing Dai, Yingnan Zhang, Yue Tan

Research output: Journal article publicationReview articleAcademic researchpeer-review


Ozone (O3) in the troposphere is an air pollutant and a greenhouse gas. In mainland China, after the Air Pollution Prevention and Action Plan was implemented in 2013 - and despite substantial decreases in the concentrations of other air pollutants - ambient O3 concentrations paradoxically increased in many urban areas. The worsening urban O3 pollution has fuelled numerous studies in recent years, which have enriched knowledge about O3-related processes and their impacts. In this article, we synthesise the key findings of over 500 articles on O3 over mainland China that were published in the past six years in English-language journals. We focus on recent changes in O3 concentrations, their meteorological and chemical drivers, complex O3 responses to the drastic decrease in human activities during coronavirus disease 2019 lockdowns, several emerging chemical processes, impacts on crops and trees, and the latest government interventions.

Original languageEnglish
Article number063003
JournalEnvironmental Research Letters
Issue number6
Publication statusPublished - May 2022


  • China
  • O
  • ozone
  • ozone control
  • ozone formation and transport
  • ozone impact on crops and forests
  • ozone trend

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)
  • Public Health, Environmental and Occupational Health

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