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Title

Source apportionment of atmospheric PM2.5-bound polycyclic aromatic hydrocarbons by a PMF receptor model. Assessment of potential risk for human health

AuthorsCallén Romero, Mª Soledad ; Iturmendi, Amaia ; López Sebastián, José Manuel
KeywordsPAH
PM2.5
PMF
BaP-TEQ
Risk assessment
Issue Date28-Aug-2014
PublisherElsevier
CitationEnvironmental Pollution 195: 167-170 (2014)
AbstractOne year sampling (2011-2012) campaign of airborne PM2.5-bound PAH was performed in Zaragoza, Spain. A source apportionment of total PAH by Positive Matrix Factorization (PMF) was applied in order to quantify potential PAH pollution sources. Four sources were apportioned: coal combustion, vehicular emissions, stationary emissions and unburned/evaporative emissions. Although Directive 2004/107/EC was fulfilled regarding benzo(a)pyrene (BaP), episodes exceeding the limit value of PM2.5 according to Directive 2008/50/EC were found. These episodes of high negative potential for human health were studied, obtaining a different pattern for the exceedances of PM2.5 and the lower assessment threshold of BaP (LATBaP). In both cases, stationary emissions contributed majority to total PAH. Lifetime cancer risk exceeded the unit risk recommended by the World Health Organization for those episodes exceeding the LATBaP and the PM2.5 exceedances for the warm season. For the cold season, the risk was higher for the LATBaP than for the PM2.5 exceedances. 2014 Elsevier Ltd. All rights reserved.
Description5 figures, 2 table, 11 págs.--Available online
Publisher version (URL)http://dx.doi.org/10.1016/j.envpol.2014.08.025
URIhttp://hdl.handle.net/10261/107542
DOI10.1016/j.envpol.2014.08.025
ISSN0269-7491
Appears in Collections:(ICB) Artículos
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