干旱区生态环境知识资源中心(Arid): PM chemical characterization at a semi-arid urban environment in Central Mexico

Arid

DOI	10.1016/j.uclim.2023.101723
	PM chemical characterization at a semi-arid urban environment in Central Mexico
	Salcedo, Dara; Alvarez-Ospina, Harry; Olivares-Salazar, Sara E.; Linan-Abanto, Rafael N.; Castro, Telma
通讯作者	Salcedo, D
来源期刊	URBAN CLIMATE
ISSN	2212-0955
出版年	2023
卷号	52
英文摘要	The central part of Mexico, a semi-arid region, hosts many anthropogenic activities that might affect the air quality of the several large cities within; however, the processes that occur in its atmosphere are poorly understood. Here, we investigated the concentration and chemical composition of the particulate matter in the Metropolitan Area of Queretaro for one year, together with meteorological variables and other pollutants data. Seasonal concentrations were determined mainly by meteorology. The secondary components comprised the largest fraction of PM2.5, followed by resuspension and the typical primary combustion sources in an urban area. Regional processing played a very important role in the formation of secondary aerosols. Local oxidation producing nitrate and less oxidized organic aerosols occurred more rapidly at night, although photochemical production in the morning was also observed. These results represent the first report of long-term real-time chemical characterization with high time resolution in the region. In addition, they might be important for better understanding the production of secondary aerosols in other semi-arid urban areas.
英文关键词	ACSM PMF Secondary aerosol Queretaro Bajio
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001109368500001
WOS关键词	POSITIVE MATRIX FACTORIZATION ; AEROSOL MASS-SPECTROMETRY ; PARTICULATE MATTER ; CITY ; DUST ; COMPONENTS ; CAMPAIGN ; SURFACE
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398948
推荐引用方式 GB/T 7714	Salcedo, Dara,Alvarez-Ospina, Harry,Olivares-Salazar, Sara E.,et al. PM chemical characterization at a semi-arid urban environment in Central Mexico[J],2023,52.
APA	Salcedo, Dara,Alvarez-Ospina, Harry,Olivares-Salazar, Sara E.,Linan-Abanto, Rafael N.,&Castro, Telma.(2023).PM chemical characterization at a semi-arid urban environment in Central Mexico.URBAN CLIMATE,52.
MLA	Salcedo, Dara,et al."PM chemical characterization at a semi-arid urban environment in Central Mexico".URBAN CLIMATE 52(2023).