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Deposition of Suspended Fine Particulate Matter in a Library

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    0392517 - ÚCHP 2014 GB eng J - Journal Article
    Smolík, Jiří - Mašková, Ludmila - Zíková, Naděžda - Ondráčková, Lucie - Ondráček, Jakub
    Deposition of Suspended Fine Particulate Matter in a Library.
    Heritage Science. Roč. 1, 3 April (2013). ISSN 2050-7445. E-ISSN 2050-7445
    R&D Projects: GA MK DF11P01OVV020
    Keywords : fine particulate matter * deposition * brownian diffusion
    Subject RIV: CF - Physical ; Theoretical Chemistry

    To analyse deposition of fine particulate matter (PM) on book surfaces we put twelve bunches of cellulose filters on a free shelf of the National Library in Prague, exposed them for three, six, nine, and twelve months to indoor air and analysed them after each period by Scanning Electron Microscopy (SEM) and Ion Chromatography (IC). Results showed that fine particles were deposited predominantly on the surface of the top filter but partly also on the surfaces of inner filters. It indicates fine particles penetrated between filters. The penetration and deposition of particles was also modelled as Brownian diffusion between two parallel filters. The model prediction demonstrated that fine particles penetrate between filters, with the depth of penetration limited by parallel diffusional deposition on filter surfaces. This is in qualitative agreement with SEM and IC investigations. The results show that beside the top part fine PM can deposit onto all available surfaces of books.
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