A review of surface ozone source apportionment in China

ABSTRACT

Air pollution caused by particulate matter has significantly improved in China in recent years since the implementation of a series of stringent clean-air regulations. However, surface ozone concentrations have increased, especially in developed city clusters, such as the Beijing–Tianjin–Hebei, Yangtze River Delta, Pearl River Delta, and Sichuan Basin regions. Due to the complexity and nonlinearity of the ozone formation, accurately locating major sources of ozone and its precursors is an important basis for the formulation of cost-effective pollution control strategies. In this paper, the authors systematically summarize the reported results and outcomes of the methods and main conclusions of ozone source apportionment (regions and categories) in China from the published literature, based on observation-based methods and emission-based methods, respectively. The authors aim to provide a comprehensive understanding of ozone pollution and reliable references for the formulation of air pollution prevention policies in China.

GRAPHICAL ABSTRACT

摘要

近年来, 在实施了一系列较为严格的空气污染控制措施后, 中国的PM_2.5污染已得到明显改善, 但近地面臭氧污染问题却日益凸显, 尤其是在一些发达的城市群, 如京津冀, 长三角, 珠三角和四川盆地地区。鉴于臭氧生成的复杂性及其与前体物的非线性关系, 准确定位臭氧及其前体物的来源是制定经济高效的臭氧污染控制策略的重要前提。本文总结了近20年来国内外已发表文章中关于中国臭氧来源 (包括区域和行业来源) 的主要方法 (包括基于观测的方法和基于排放的方法) 和结论, 希望能为中国臭氧污染的全面了解和空气污染防治政策的制定提供可靠的参考。

KEYWORDS:

• Surface ozone
• long-term trends
• ozone source apportionment
• literature review

关键词:

• 近地面臭氧;长期趋势;臭氧来源解析;文献综述

Disclosure statement

No potential conflict of interest was reported by the authors.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

This study was supported by the National Natural Science Foundation of China [grant number 41830109] and the National Key R&D Programs of China [grant number 2017YFB0503901].