气候变化领域集成服务门户(CCPortal): Exploratory analysis of carbonaceous PM2.5 species in urban environments: Relationship with meteorological variables and satellite data

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DOI	10.1016/j.atmosenv.2020.117987
	Exploratory analysis of carbonaceous PM2.5 species in urban environments: Relationship with meteorological variables and satellite data
	Amarillo A.; Carreras H.; Krisna T.; Mignola M.; Tavera Busso I.; Wendisch M.
发表日期	2021
ISSN	13522310
卷号	245
英文摘要	The carbonaceous chemical composition and mass concentration of particles with an aerodynamic diameter less than 2.5 μm (PM2.5), were analyzed, as well as their relationship with satellite data and meteorological variables. PM2.5 ground samples were collected at nine sampling sites with different land use in the metropolitan area of Córdoba city, during autumn and winter in 2018, and concentrations of organic carbon (OC) and elemental carbon (EC) were measured. The aerosol optical depth (AOD) was retrieved from the MODIS sensor, Aqua and Terra satellites. The AOD was validated using ground-based sun photometer data. Furthermore, the PM2.5 mass concentration and composition were simulated using multiple linear regression models, with the measured AOD and meteorological parameters as input variables. The data showed that PM2.5 mass concentrations varied in space throughout the city, indeed at four sampling sites, they exceeded the World Health Organization (WHO) daily guidelines. The OC and EC mass concentrations were moderate and low, respectively, in comparison with other cities in the world. PM2.5 concentrations were negatively associated with average planetary boundary layer (PBLav), dew point (DP) and AOD from Aqua satellite (AODa). The columnar average AODav did not correlate significantly with the ground-based PM2.5 measurements, however AODa was retained in a model to explain PM2.5 having a negative effect on particles. An effective carbon ratio (ECR) was calculated to estimate the radiative forcing of PM2.5 in a local scale. The results suggested an overall local radiative heating effect due to PM2.5. © 2020 Elsevier Ltd
英文关键词	AOD; Carbonaceous composition; Córdoba; MAIAC; MODIS; PM2.5
语种	英语
scopus关键词	Atmospheric radiation; Boundary layers; Chemical analysis; Land use; Linear regression; Organic carbon; Aerodynamic diameters; Aerosol optical depths; Chemical compositions; Meteorological parameters; Meteorological variables; Multiple linear regression models; Planetary boundary layers; World Health Organization; Satellites; aerosol; Aqua (satellite); boundary layer; chemical composition; concentration (composition); elemental carbon; metropolitan area; MODIS; optical depth; organic carbon; particulate matter; radiative forcing; satellite data; Terra (satellite); Argentina; Cordoba [Andalucia]; Cordoba [Argentina]; Cordoba [Cordoba (PRV)]; Satellites
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/144772
作者单位	Multidisciplinary Institute for Plant Biology – National Scientific and Technical Research Council, 299 Vélez Sarsfield Av, Córdoba, 5000, Argentina; Faculty of Exact, Physical and Natural Sciences – National University of Córdoba, 1611 Vélez Sarsfield Av, Córdoba, X5016 GCA, Argentina; Leipzig Institute for Meteorology (LIM) - Faculty of Physics and Earth Sciences, University of Leipzig, Stephanstr. 3, Leipzig, 04103, Germany
推荐引用方式 GB/T 7714	Amarillo A.,Carreras H.,Krisna T.,et al. Exploratory analysis of carbonaceous PM2.5 species in urban environments: Relationship with meteorological variables and satellite data[J],2021,245.
APA	Amarillo A.,Carreras H.,Krisna T.,Mignola M.,Tavera Busso I.,&Wendisch M..(2021).Exploratory analysis of carbonaceous PM2.5 species in urban environments: Relationship with meteorological variables and satellite data.Atmospheric Environment,245.
MLA	Amarillo A.,et al."Exploratory analysis of carbonaceous PM2.5 species in urban environments: Relationship with meteorological variables and satellite data".Atmospheric Environment 245(2021).