000110823 001__ 110823
000110823 005__ 20230519145616.0
000110823 0247_ $$2doi$$a10.1016/j.scitotenv.2021.148728
000110823 0248_ $$2sideral$$a127477
000110823 037__ $$aART-2021-127477
000110823 041__ $$aeng
000110823 100__ $$aVeld, Marten I.
000110823 245__ $$aCompositional changes of PM2.5 in NE Spain during 2009–2018: a trend analysis of the chemical composition and source apportionment
000110823 260__ $$c2021
000110823 5060_ $$aAccess copy available to the general public$$fUnrestricted
000110823 5203_ $$aIn this work, time-series analyses of the chemical composition and source contributions of PM2.5 from an urban background station in Barcelona (BCN) and a rural background station in Montseny (MSY) in northeastern Spain from 2009 to 2018 were investigated and compared. A multisite positive matrix factorization analysis was used to compare the source contributions between the two stations, while the trends for both the chemical species and source contributions were studied using the Theil–Sen trend estimator. Between 2009 and 2018, both stations showed a statistically significant decrease in PM2.5 concentrations, which was driven by the downward trends of levels of chemical species and anthropogenic source contributions, mainly from heavy oil combustion, mixed combustion, industry, and secondary sulfate. These source contributions showed a continuous decrease over the study period, signifying the continuing success of mitigation strategies, although the trends of heavy oil combustion and secondary sulfate have flattened since 2016. Secondary nitrate also followed a significant decreasing trend in BCN, while secondary organic aerosols (SOA) very slightly decreased in MSY. The observed decreasing trends, in combination with the absence of a trend for the organic aerosols (OA) at both stations, resulted in an increase in the relative proportion of OA in PM2.5 by 12% in BCN and 9% in MSY, mostly from SOA, which increased by 7% in BCN and 4% in MSY. Thus, at the end of the study period, OA accounted for 40% and 50% of the annual mean PM2.5 at BCN and MSY, respectively. This might have relevant implications for air quality policies aiming at abating PM2.5 in the study region and for possible changes in toxicity of PM2.5 due to marked changes in composition and source apportionment.
000110823 536__ $$9info:eu-repo/grantAgreement/ES/AGAUR/2017 SGR41$$9info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2019-108990RB-I00$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CGL2016-78594-R
000110823 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000110823 590__ $$a10.754$$b2021
000110823 592__ $$a1.806$$b2021
000110823 594__ $$a14.1$$b2021
000110823 591__ $$aENVIRONMENTAL SCIENCES$$b26 / 279 = 0.093$$c2021$$dQ1$$eT1
000110823 593__ $$aEnvironmental Chemistry$$c2021$$dQ1
000110823 593__ $$aWaste Management and Disposal$$c2021$$dQ1
000110823 593__ $$aEnvironmental Engineering$$c2021$$dQ1
000110823 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000110823 700__ $$aAlastuey, Andrés
000110823 700__ $$aPandolfi, Marco
000110823 700__ $$aAmato, Fulvio
000110823 700__ $$aPérez, Noemí
000110823 700__ $$aReche, Cristina
000110823 700__ $$aVia, Marta
000110823 700__ $$aMinguillón, María Cruz
000110823 700__ $$0(orcid)0000-0001-8227-5689$$aEscudero, Miguel$$uUniversidad de Zaragoza
000110823 700__ $$aQuerol, Xavier
000110823 7102_ $$12002$$2385$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Física Aplicada
000110823 773__ $$g795 (2021), 148728 [18 pp.]$$pSci. total environ.$$tSCIENCE OF THE TOTAL ENVIRONMENT$$x0048-9697
000110823 8564_ $$s3667613$$uhttps://zaguan.unizar.es/record/110823/files/texto_completo.pdf$$yVersión publicada
000110823 8564_ $$s2368099$$uhttps://zaguan.unizar.es/record/110823/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000110823 909CO $$ooai:zaguan.unizar.es:110823$$particulos$$pdriver
000110823 951__ $$a2023-05-18-16:10:49
000110823 980__ $$aARTICLE