{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T11:13:04Z","timestamp":1775819584639,"version":"3.50.1"},"reference-count":38,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2021,3,5]],"date-time":"2021-03-05T00:00:00Z","timestamp":1614902400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014180","name":"Junta de Castilla y Le\u00f3n","doi-asserted-by":"publisher","award":["VA227P20"],"award-info":[{"award-number":["VA227P20"]}],"id":[{"id":"10.13039\/501100014180","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Atmosphere"],"abstract":"<jats:p>Mining activities increase contaminant levels in the environment, so it is crucial to study the particulate matter in these areas to understand the impacts on nearby urban areas and populations. This work was conducted close to the active mine of Aljustrel (Portugal), where black dust deposition is evident. PM10 samples were collected in two periods: 10\u201317 July and 1\u201310 November of 2018. Two different techniques were used: SEM-EDX for the individual characterization of the aerosols and ICP-MS to quantify the elemental concentration of 11 elements (Ca, Na, Fe, Mn, As, Cd, Cu, Sb, Pb, and Zn). In this region, the observed PM10 mass concentration was 20 to 47 \u00b5g m \u22123 (July) and 4 to 23 \u00b5g m\u22123 (November), which is lower than the limit of 50 \u03bcg m\u22123 established in the European Directive. The individual characterization of 2006 particles by SEM-EDX shows oxides (17%) and sulfides (10%), while Na, Si, Fe, S, Al, and Cu are the elements with the most representativeness in all the analyzed particles. The ICP-MS results indicate that the daily elemental concentration in the samples collected in July is higher than November, and only As exceeds the limit established for European legislation.<\/jats:p>","DOI":"10.3390\/atmos12030333","type":"journal-article","created":{"date-parts":[[2021,3,5]],"date-time":"2021-03-05T05:03:15Z","timestamp":1614920595000},"page":"333","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Morphology, Mineralogy, and Chemistry of Atmospheric Aerosols Nearby an Active Mining Area: Aljustrel Mine (SW Portugal)"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0991-4012","authenticated-orcid":false,"given":"Ana","family":"Barroso","sequence":"first","affiliation":[{"name":"Department of Earth Sciences, University of Coimbra, 3004-531 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1423-2668","authenticated-orcid":false,"given":"Sandra","family":"Mogo","sequence":"additional","affiliation":[{"name":"Department of Physics, University of Beira Interior, 6201-001 Covilh\u00e3, Portugal"},{"name":"Institute Dom Luiz (IDL), University of Lisbon, 1250-096 Lisbon, Portugal"},{"name":"Atmospheric Optics Group, University of Valladolid, 47011 Valladolid, Spain"}]},{"given":"M. Manuela V. G.","family":"Silva","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences, University of Coimbra, 3004-531 Coimbra, Portugal"},{"name":"Centre for Earth, Space Research of the University of Coimbra, 3004-531 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4627-9444","authenticated-orcid":false,"given":"Victoria","family":"Cachorro","sequence":"additional","affiliation":[{"name":"Atmospheric Optics Group, University of Valladolid, 47011 Valladolid, Spain"}]},{"given":"\u00c1ngel","family":"de Frutos","sequence":"additional","affiliation":[{"name":"Atmospheric Optics Group, University of Valladolid, 47011 Valladolid, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2021,3,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1016\/j.scitotenv.2012.06.013","article-title":"A review on the importance of metals and metalloids in atmospheric dust and aerosol from mining operations","volume":"433","author":"Csavina","year":"2012","journal-title":"Sci. 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