气候变化领域集成服务门户(CCPortal): A model for simultaneous evaluation of NO2, O-3, and PM10, pollution in urban and rural areas: handling incomplete data sets with multivariate curve resolution analysis

CCPortal

DOI	10.5194/acp-22-9111-2022
	A model for simultaneous evaluation of NO2, O-3, and PM10, pollution in urban and rural areas: handling incomplete data sets with multivariate curve resolution analysis
	Gorrochategui, Eva; Hernandez, Isabel; Tauler, Roma
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	9111
结束页码	9127
卷号	22 期号:13 页码:17
英文摘要	A powerful methodology, based on the multivariate curve resolution alternating least squares (MCR-ALS) method with quadrilinearity constraints, is proposed to handle complex and incomplete four-way atmospheric data sets, providing concise results that are easy to interpret. Changes in air quality by nitrogen dioxide (NO2), ozone (O-3), and particulate matter (PM10) in eight sampling stations located in the Barcelona metropolitan area and other parts of Catalonia during the COVID-19 lockdown period (2020) with respect to previous years (2018 and 2019), are investigated using such methodology. The MCR-ALS simultaneous analysis of the three contaminants among the eight stations and for the 3 years allows the evaluation of potential correlations among the pollutants, even when having missing data blocks. Correlated profiles are shown by NO2 and PM10 due to similar pollution sources (traffic and industry), evidencing a decrease in 2019 and 2020 due to traffic restriction policies and the COVID-19 lockdown period, especially noticeable in the most transited urban areas (i.e., Vall d'Hebron, Granollers and Gracia). The O-3 evidences an opposed interannual trend, showing higher amounts in 2019 and 2020 with respect to 2018 due to the decreased titration effect, more significant in rural areas (Begur) and in the control site (Obserbatori Fabra).
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000824672300001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273333
作者单位	Ecole des Hautes Etudes en Sante Publique (EHESP); Institut National de la Sante et de la Recherche Medicale (Inserm); Universite de Rennes; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Centro de Investigacion y Desarrollo Pascual Vila (CID-CSIC); CSIC - Instituto de Diagnostico Ambiental y Estudios del Agua (IDAEA)
推荐引用方式 GB/T 7714	Gorrochategui, Eva,Hernandez, Isabel,Tauler, Roma. A model for simultaneous evaluation of NO2, O-3, and PM10, pollution in urban and rural areas: handling incomplete data sets with multivariate curve resolution analysis[J],2022,22(13):17.
APA	Gorrochategui, Eva,Hernandez, Isabel,&Tauler, Roma.(2022).A model for simultaneous evaluation of NO2, O-3, and PM10, pollution in urban and rural areas: handling incomplete data sets with multivariate curve resolution analysis.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(13),17.
MLA	Gorrochategui, Eva,et al."A model for simultaneous evaluation of NO2, O-3, and PM10, pollution in urban and rural areas: handling incomplete data sets with multivariate curve resolution analysis".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.13(2022):17.