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Dispersion modeling of selected PAHs in urban air: A new approach combining dispersion model with GIS and passive air sampling

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SÁŇKA Ondřej MELYMUK Lisa Emily ČUPR Pavel DVORSKÁ Alice KLÁNOVÁ Jana

Rok publikování 2014
Druh Článek v odborném periodiku
Časopis / Zdroj Atmospheric Environment
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://www.sciencedirect.com/science/article/pii/S1352231014005238
Doi http://dx.doi.org/10.1016/j.atmosenv.2014.07.002
Obor Znečištění a kontrola vzduchu
Klíčová slova Passive air sampling; Air dispersion modeling; GIS; Polycyclic aromatic hydrocarbons; Emission inventories
Popis This study introduces a new combined air concentration measurement and modeling approach that we propose can be useful in medium and long term air quality assessment. A dispersion study was carried out for four high molecular weight polycyclic aromatic hydrocarbons (PAHs) in an urban area with industrial, traffic and domestic heating sources. A geographic information system (GIS) was used both for processing of input data as well as visualization of the modeling results. The outcomes of the dispersion model were compared to the results of passive air sampling (PAS). Despite discrepancies between measured and modeled concentrations, an approach combining the two techniques is promising for future air quality assessment. Differences between measured and modeled concentrations, in particular when measured values exceed the modeled concentrations, are indicative of undocumented, sporadic pollutant sources. Thus, these differences can also be useful for assessing and refining emission inventories. (C) 2014 Elsevier Ltd. All rights reserved.
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