Rapid increase in summer surface ozone over the North China Plain during 2013&ndash;2019: a side effect of particulate matters reduction control?

doi:10.5194/acp-2020-385

GSTDTAP > 地球科学

DOI	10.5194/acp-2020-385
	Rapid increase in summer surface ozone over the North China Plain during 2013-2019: a side effect of particulate matters reduction control?
	Xiaodan Ma, Jianping Huang, Tianliang Zhao, Cheng Liu, Kaihui Zhao, Jia Xing, and Wei Xiao
	2020-07-21
发表期刊	Atmospheric Chemistry and Physics
出版年	2020
英文摘要	While the elevated ambient levels of particulate matters with aerodynamic diameter of 2.5 micrometers or less (PM_2.5) are alleviated largely with the implementation of effective emission control measures, an opposite trend with a rapid increase is seen in surface ozone (O₃) in the North China Plain (NCP) region over the past several years. It is critical to determine the real culprit causing such a large increase in surface O₃. In this study, seven-year surface observations and satellite retrieval data are analyzed to determine the long-term change in surface O₃ as well as driving factors. Results indicate that anthropogenic emission control strategies and changes in aerosol concentrations as well as aerosol optical properties such as single-scattering albedo (SSA) are the most important factors driving such a large increase in surface O₃. Numerical simulations with National Center for Atmospheric Research (NCAR) Master Mechanism (MM) model suggest that reduction of O₃ precursor emissions and aerosol radiative effect accounted for 45 % and 23 % of the total change in surface O₃ in summertime during 2013–2019, respectively. Planetary boundary layer (PBL) height with an increase of 0.21 km and surface air temperature with an increase of 2.1 °C contributed 18 % and 12 % to the total change in surface O₃, respectively. The combined effect of these factor was responsible for the rest change. Decrease in SSA or strengthened absorption property of aerosols may offset the impact of AOD reduction on surface O₃ substantially. While the MM model enables quantification of individual factor's percentage contributions, it requires further refinement with aerosol chemistry included in the future investigation. The study indicates an important role of aerosol radiative effect in development of more effective emission control strategies on reduction of ambient levels of O₃ as well as alleviation of national air quality standard exceedance events.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/286740
专题	地球科学
推荐引用方式 GB/T 7714	Xiaodan Ma, Jianping Huang, Tianliang Zhao, Cheng Liu, Kaihui Zhao, Jia Xing, and Wei Xiao. Rapid increase in summer surface ozone over the North China Plain during 2013-2019: a side effect of particulate matters reduction control?[J]. Atmospheric Chemistry and Physics,2020.
APA	Xiaodan Ma, Jianping Huang, Tianliang Zhao, Cheng Liu, Kaihui Zhao, Jia Xing, and Wei Xiao.(2020).Rapid increase in summer surface ozone over the North China Plain during 2013–2019: a side effect of particulate matters reduction control?.Atmospheric Chemistry and Physics.
MLA	Xiaodan Ma, Jianping Huang, Tianliang Zhao, Cheng Liu, Kaihui Zhao, Jia Xing, and Wei Xiao."Rapid increase in summer surface ozone over the North China Plain during 2013–2019: a side effect of particulate matters reduction control?".Atmospheric Chemistry and Physics (2020).