气候变化领域集成服务门户(CCPortal): An analysis of the effects of weather and air pollution on tropospheric ozone using a generalized additive model in Western China: Lanzhou, Gansu

CCPortal

DOI	10.1016/j.atmosenv.2020.117342
	An analysis of the effects of weather and air pollution on tropospheric ozone using a generalized additive model in Western China: Lanzhou, Gansu
	Ma Y.; Ma B.; Jiao H.; Zhang Y.; Xin J.; Yu Z.
发表日期	2020
ISSN	1352-2310
卷号	224
英文摘要	In recent years, near-surface ozone (O3) concentrations have been increasing, which aggravates O3 pollution. Due to the environmental threat it poses to human health, O3 pollution has become a hot topic among researchers. In this paper, we used a generalized additive model (GAM) to evaluate the complex nonlinear relationships between O3 concentration and the factors influencing O3 concentration from 2013 to 2017 in Lanzhou in Western China. We considered factors such as long-term trend, seasonality at a quarterly interval, and the weekend effect. The results showed that O3 concentration in Lanzhou was affected by many factors, and these influencing factors were correlated with each other. In the single-factor model, the adjusted coefficient of determination (R2) was 0.594, and the total deviance explained of O3 concentration was 62.3%. We detected significantly nonlinear relationships between O3 concentration and the influencing factors like air temperature, sunshine hours, wind speed, relative humidity, and the concentrations of NO2 and PM2.5. In particular, air temperature was the main driving factor for O3 concentration, which explained 24.2% of the variance (F = 350.84). In addition, we built a double-factor model to investigate the interactive influences of these influencing factors on O3 concentration variation. In the fitted double-factor model, R2 was 0.636 and the total deviance explained was 68.1%, both of which were higher (i.e., better performance) than that in the single-factor model. Among these studied influencing factors, the interaction between air temperature and air pollutants showed the greatest influence on O3 concentration variation. The results of this study can be used to assist local environmental authorities to take proactive measures for O3 pollution control in Lanzhou, Gansu. © 2020 Elsevier Ltd
关键词	Generalized additive model (GAM)Influencing factor Interaction Meteorological factor O3 concentration
语种	英语
scopus关键词	Additives; Atmospheric temperature; Health risks; Ozone; Pollution control; Wind; Coefficient of determination; Concentration variation; Environmental Authority; Generalized additive model; Influencing factor; Interaction; Meteorological factors; Non-linear relationships; Air pollution; nitrogen oxide; ozone; air temperature; atmospheric modeling; atmospheric pollution; concentration (composition); meteorology; model; ozone; pollution control; seasonality; troposphere; air pollution; air temperature; Article; China; concentration (parameter); humidity; particulate matter; priority journal; seasonal variation; troposphere; weather; wind speed; China; Gansu; Lanzhou
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249305
作者单位	College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China; Institute of Atmospheric Sciences, Chinese Academy of Sciences, Beijing, 10081, China
推荐引用方式 GB/T 7714	Ma Y.,Ma B.,Jiao H.,et al. An analysis of the effects of weather and air pollution on tropospheric ozone using a generalized additive model in Western China: Lanzhou, Gansu[J],2020,224.
APA	Ma Y.,Ma B.,Jiao H.,Zhang Y.,Xin J.,&Yu Z..(2020).An analysis of the effects of weather and air pollution on tropospheric ozone using a generalized additive model in Western China: Lanzhou, Gansu.ATMOSPHERIC ENVIRONMENT,224.
MLA	Ma Y.,et al."An analysis of the effects of weather and air pollution on tropospheric ozone using a generalized additive model in Western China: Lanzhou, Gansu".ATMOSPHERIC ENVIRONMENT 224(2020).