RT Journal Article T1 PM10 chemical fingerprints and source assessment guiding air quality improvements by 2030 in Andalusia, southern Spain A1 Pérez Vizcaino, Pablo A1 Sánchez de la Campa Verdona, Ana María A1 Sánchez-Rodas Navarro, Daniel Alejandro A1 Alastuey Urós, José Andrés A1 Querol, X. A1 Rosa Díaz, Jesús de la AB This study focuses on the evaluation of 2021–2023 PM10 concentrations, chemical speciation and source apportionment (with receptor modelling) of samples collected at 21 air quality monitoring stations (urban, urban-industrial, traffic hotspots and rural) from Andalusia (southern Spain). After subtracting the natural dust contribution, 9/21 sites would exceed the annual PM10 limit value of 20 μg m−3 set by the new Ambient Air Quality Directive (EU) 2024/2881. Source apportionment analysis carried out with PMF identified six major sources of PM10: Crustal, Marine, Combustion (biomass burning and traffic mix), Traffic, Regional and Industrial. The main anthropogenic source was Combustion, with the exception of those stations located in cities with a high road traffic density, where Traffic was the dominant anthropogenic source. To comply with the objectives of the Directive (EU) 2024/2881, a reduction of 5–50 % in anthropogenic sources is proposed, based on the sum of their interannual mean concentrations at the nine potentially non-compliance sites. The study evidences the complexity of separating specific source contributions of PM10, highlighting the need to conduct higher time resolution studies to better identify and quantify source contributions and their temporal variations, as well as the need to combine deterministic and receptor modelling for a complete source apportionment, specially of secondary PM contributions. PB Elsevier SN 0269-7491 SN 1873-6424 (electrónico) YR 2026 FD 2026 LK https://hdl.handle.net/10272/28039 UL https://hdl.handle.net/10272/28039 LA eng NO Pérez-Vizcaíno, P., Sánchez de la Campa, A. M., Sánchez-Rodas, D., Alastuey, A., Querol, X., & de la Rosa, J. D. (2026). PM10 chemical fingerprints and source assessment guiding air quality improvements by 2030 in Andalusia, southern Spain. Environmental Pollution, 388, 127347. https://doi.org/10.1016/j.envpol.2025.127347 NO This study has received funding from the RI-URBANS project, belonging to the European Union′s Horizon 2020 research and innovation program (101036245). We would also like to acknowledge Grants PID2021-126986OB-I00 (Ref. PRE2022-105241) and PID2024-157355OB-I00 funded by MCIN/AEI/10.13039/501100011033 and, by "ERDF A way of making Europe", and the Consejería de Universidad, Investigación e Innovación (Ref. DGP_PIDI_2024_01602) of the Regional Government of Andalusia for financial and technical support. Funding for open access charge: University of Huelva/CBUA. DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026