標題：Variations of surface ozone (O₃) pollution and its relationship with meteorological factors in Xinyang City during 2015~2019

作者：Wei Yan, Ziyun Jiang, Feng Zhou, Jia Ning, Minghua Liu

來源出版物：The International Society for Optical Engineering

DOI：10.1117/12.2627336

出版年：2022

文獻類型：Article

語種：English

摘要：With the rapid development of the economy, surface ozone (O₃) has become one of the most critical pollutants which disturb urban air quality improvement and standard management. It is important to clarify the variation characteristics of urban surface O₃ concentration and its influence factors for scientifically formulating early warning of O₃ pollution and prevention and control schemes. In this paper, based on datasets of surface O₃ concentration and meteorological data of Xinyang City during 2015~2019, the variation characteristics of surface O₃ concentration and the influence of meteorological factors on it were analysed by using statistical analysis and path analysis. The results show that the annual mean O₃ concentration of Xinyang City fluctuated “declining-rising-declining” from 2015 to 2019, and the annual average probability in exceedance of the Chinese grade I and II ambient air quality standards were 41.7% and 10.7%, respectively. The monthly variation of O₃ concentration presented a significant M-type fluctuation, with the peak values appearing in May and September, respectively. The meteorological factors had different degrees of influence on O₃ concentration, with the influence degree in order air temperature > sunshine duration > atmospheric pressure > relative humidity > precipitation > wind speed. The effects of air temperature and relative humidity on O₃ were mainly reflected by direct effects, while that of sunshine duration, precipitation, and atmospheric pressure were mainly reflected through indirect effects.

關(guān)鍵詞：surface ozone (O₃); meteorological factors; path analysis; Xinyang

論文連接：https://doi.org/10.1117/12.2627336