Source specificity and atmospheric processing of airborne PAHs: Implications for source apportionment

Galarneau, Elisabeth

doi:10.1016/j.atmosenv.2008.07.025

Cited by 430 publications

(217 citation statements)

References 78 publications

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“…Although the use of diagnostic ratios has been criticized by a variety of authors and notwithstanding the known uncertainties, it was used in this paper only as an indicative way to give insight about sources (Katsoyiannis et al, 2007;Galerneau, 2008;Katsoyiannis et al, 2011;Katsoyiannis and Breivik, 2014).…”

Section: Diagnostic Ratio Chartsmentioning

confidence: 99%

Occurrence, distribution, sources and toxic potential of polycyclic aromatic hydrocarbons (PAHs) in surface soils from the Kumasi Metropolis, Ghana

Bortey-Sam

Ikenaka

Nakayama

et al. 2014

Science of The Total Environment

101

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As a developing country, the economic and population growth rates in Ghana over the past few years have seen tremendous increase. The growing rate of industrialization is gradually leading to contamination and deterioration of the environment and pollution is likely to reach disturbing levels. Surface soil samples were collected randomly from 36 communities in the Kumasi metropolis, Ghana, to determine the concentrations, distribution, sources and toxic potential of emission of polycyclic aromatic hydrocarbons (PAHs) since no such comprehensive study has been conducted. The mean concentration of total PAHs in the surface soils in each community ranged from 14.78 at Ahinsan to 2084 ng/g dry weight at Adum with an average of 442.5 ± 527.2 ng/g dry weight. Diagnostic ratios and chemical mass balance models of the results showed that PAHs in surface soil samples from the study area were mainly from fuel combustion.Carcinogenic potency of PAHs load from the city centre was approximately 150 times higher as compared to a pristine site, Kwame Nkrumah University of Science and Technology's Botanical Garden. BaP, a human carcinogen, contributed 70% of the total PAHs toxicity level from the city centre of Kumasi.

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Section: Diagnostic Ratio Chartsmentioning

confidence: 99%

Occurrence, distribution, sources and toxic potential of polycyclic aromatic hydrocarbons (PAHs) in surface soils from the Kumasi Metropolis, Ghana

Bortey-Sam

Ikenaka

Nakayama

et al. 2014

Science of The Total Environment

101

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Section: Source Identification (Factor Analysis)mentioning

confidence: 99%

“…Nevertheless, some limitations and weakness of PAHs source identification using these tools have been pointed out recently (Galarneau 2008;Dvorská et al 2011;Katsoyiannis et al 2011). The validity of such methods is based on two main assumptions: source specificity and species conservation (Galarneau 2008). In this study, the results have been critically interpreted in view of these assumptions: (1) Only particle-phase PAHs have been considered to minimize the differences in gasparticle phase distributions and chemical and photolytic reactivities; (2) as high temperature and solar radiation favor the volatilization and oxidation of PAHs, summer samples were not considered; the other three seasons are characterized by relatively low temperature (average <15°C); (3) a preliminary data analysis including diagnostic ratios, micrometeorology, emission inventory, and gaseous pollutants has been performed to help the interpretation of the most probable sources.…”

Section: Source Identification (Factor Analysis)mentioning

confidence: 99%

GC-MS analyses and chemometric processing to discriminate the local and long-distance sources of PAHs associated to atmospheric PM2.5

Masiol

Centanni

Hofer

et al. 2012

Environ Sci Pollut Res

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Purpose This study presents a procedure to differentiate the local and remote sources of particulate-bound polycyclic aromatic hydrocarbons (PAHs). Methods Data were collected during an extended PM 2.5 sampling campaign (2009)(2010) carried out for 1 year in Venice-Mestre, Italy, at three stations with different emissive scenarios: urban, industrial, and semirural background. Diagnostic ratios and factor analysis were initially applied to point out the most probable sources. In a second step, the areal distribution of the identified sources was studied by applying the discriminant analysis on factor scores. Third, samples collected in days with similar atmospheric circulation patterns were grouped using a cluster analysis on wind data. Local contributions to PM 2.5 and PAHs were then assessed by interpreting cluster results with chemical data.Results Results evidenced that significantly lower levels of PM 2.5 and PAHs were found when faster winds changed air masses, whereas in presence of scarce ventilation, locally emitted pollutants were trapped and concentrations increased. This way, an estimation of pollutant loads due to local sources can be derived from data collected in days with similar wind patterns. Long-range contributions were detected by a cluster analysis on the air mass back-trajectories. Results revealed that PM 2.5 concentrations were relatively high when air masses had passed over the Po Valley. However, external sources do not significantly contribute to the PAHs load. Conclusions The proposed procedure can be applied to other environments with minor modifications, and the obtained information can be useful to design local and national air pollution control strategies.

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“…Therefore, it indicates that biomass and coal combustion are important sources for PAHs in this city. Galarneau (2008) indicated that Flu/(Flu + Pyr) value is 0.57 for coal combustion. It can be concluded that for site HJQ, with few human activities and industries, the sources for PAHs are more simple than those for other sites, and coal combustion may be dominated.…”

Section: Diagnostic Ratio Analysismentioning

confidence: 99%

Polycyclic aromatic hydrocarbons (PAHs) in atmospheric PM2.5 and PM10 at a coal-based industrial city: Implication for PAH control at industrial agglomeration regions, China

Wang

Chen

et al. 2014

Atmospheric Research

132

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Source specificity and atmospheric processing of airborne PAHs: Implications for source apportionment

Cited by 430 publications

References 78 publications

Occurrence, distribution, sources and toxic potential of polycyclic aromatic hydrocarbons (PAHs) in surface soils from the Kumasi Metropolis, Ghana

Occurrence, distribution, sources and toxic potential of polycyclic aromatic hydrocarbons (PAHs) in surface soils from the Kumasi Metropolis, Ghana

GC-MS analyses and chemometric processing to discriminate the local and long-distance sources of PAHs associated to atmospheric PM2.5

Polycyclic aromatic hydrocarbons (PAHs) in atmospheric PM2.5 and PM10 at a coal-based industrial city: Implication for PAH control at industrial agglomeration regions, China

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