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Identifying risk sources of air contamination by polycyclic aromatic hydrocarbons

J. Huzlik, F. Bozek, A. Pawelczyk, R. Licbinsky, M. Naplavova, M. Pondelicek,

. 2017 ; 183 (-) : 139-146. [pub] 20170511

Jazyk angličtina Země Velká Británie

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc18016586

This article is directed to determining concentrations of polycyclic aromatic hydrocarbons (PAHs), which are sorbed to solid particles in the air. Pollution sources were identified on the basis of the ratio of benzo[ghi]perylene (BghiPe) to benzo[a]pyrene (BaP). Because various important information is lost by determining the simple ratio of concentrations, least squares linear regression (classic ordinary least squares regression), reduced major axis, orthogonal regression, and Kendall-Theil robust diagnostics were utilized for identification. Statistical evaluation using all aforementioned methods demonstrated different ratios of the monitored PAHs in the intervals examined during warmer and colder periods. Analogous outputs were provided by comparing gradients of the emission factors acquired from the measured concentrations of BghiPe and BaP in motor vehicle exhaust gases. Based on these outputs, it was possible plausibly to state that the influence of burning organic fuels in heating stoves is prevalent in colder periods whereas in warmer periods transport was the exclusive source because other sources of PAH emissions were not found in the examined locations.

Citace poskytuje Crossref.org

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$a This article is directed to determining concentrations of polycyclic aromatic hydrocarbons (PAHs), which are sorbed to solid particles in the air. Pollution sources were identified on the basis of the ratio of benzo[ghi]perylene (BghiPe) to benzo[a]pyrene (BaP). Because various important information is lost by determining the simple ratio of concentrations, least squares linear regression (classic ordinary least squares regression), reduced major axis, orthogonal regression, and Kendall-Theil robust diagnostics were utilized for identification. Statistical evaluation using all aforementioned methods demonstrated different ratios of the monitored PAHs in the intervals examined during warmer and colder periods. Analogous outputs were provided by comparing gradients of the emission factors acquired from the measured concentrations of BghiPe and BaP in motor vehicle exhaust gases. Based on these outputs, it was possible plausibly to state that the influence of burning organic fuels in heating stoves is prevalent in colder periods whereas in warmer periods transport was the exclusive source because other sources of PAH emissions were not found in the examined locations.
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$a Bozek, Frantisek $u University of Defence, 65 Kounicova, 662 10, Brno, Czech Republic. Electronic address: frantisek.bozek@unob.cz.
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$a Pawelczyk, Adam $u Wroclaw University of Technology, Faculty of Chemistry, 4/6 Norwida St., 50-373, Wrocław, Poland. Electronic address: adam.pawelczyk@pwr.wroc.pl.
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$a Licbinsky, Roman $u Transport Research Centre, 33a Lisenska, 636 00, Brno, Czech Republic. Electronic address: roman.licbinsky@cdv.cz.
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