Evaluation of airborne particles at the Alhambra monument in Granada, Spain

Benjamin Horemans, Carolina Cardell, Laszlo Bencs, Velichka Kontozova-Deutsch, Karolien De Wael, Rene Van Grieken

    Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikel

    Uittreksel

    As a part of an ongoing investigation regarding the air quality at the Alhambra monument (UNESCO World Cultural Heritage), indoor and outdoor atmospheric aerosols (PM(1) and PM(10-1)) and pollutant gases (O(3), NO(2), SO(2) and NH(3)) were studied during summer and winter. Bulk elements, ionic compounds and black carbon (BC) in aerosols were analyzed with X-ray fluorescence spectrometry, ion chromatography and aethalometry/reflectometry, respectively. Natural PM(10-1) aerosols, such as carbonate-rich soil and sea salts, reacted with a typical urban atmosphere, producing a mixture of particulates with diverse chemical composition. The content/formation of secondary inorganic aerosols depended on the air temperature and absolute humidity. Ratios of typical mineral elements (i.e., Ti/Fe and Si/Fe) showed that Saharan dust events contribute to the composition of the observed mineral aerosol content. BC, V and Ni originated from diesel exhaust, while Cu, Cr, Pb and Zn came mainly from non-exhaust vehicular emissions. Weathering phenomena, such as blackening and pigment discoloration, which could arise from gradual aerosol deposition indoors, are discussed. (C) 2011 Elsevier B.V. All rights reserved.
    TaalEngels
    TijdschriftMicrochemical Journal
    Volume99
    Exemplaarnummer2
    Pagina's (van-tot)429-438
    Aantal pagina's10
    ISSN0026-265X
    DOI's
    StatusGepubliceerd - 1-nov-2011

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