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Size specific distribution of the atmospheric particulate PCDD/Fs, dl-PCBs and PAHs on a seasonal scale: Implications for cancer risks from inhalation
RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic.
RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic.
RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic.
RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic.
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2014 (English)In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 98, p. 410-416Article in journal (Refereed) Published
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Text
Abstract [en]

This study presents the seasonal size distribution of particulate polycyclic aromatic hydrocarbons (PAHs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in the atmosphere. Particles were sampled from October 2009 to October 2010 on a seasonal basis using a cascade impactor collecting six size fractions at a rural and urban site in the Brno area, Czech Republic. Higher concentrations of PAHs, PCDD/Fs and dl-PCBs were observed in cold seasons at both sites, attributed to the seasonality of the gas-particle partitioning, the increase of emissions and the lower boundary mixing layer in winter. All of the compounds showed a strong accumulation in the fine fraction, with, on average, 71% of Sigma PAHs, 73% of Sigma PCDD/Fs and 60% of Sigma dl-PCBs associated with particles <0.95 mu m. The human risk assessment via inhalation was addressed and followed the same pattern as for concentrations, with 41 and 7 times higher risk in winter compared to summer at the rural and urban sites, respectively. More than 70% of cancer risks of PAHs, PCDD/Fs and dl-PCBs was associated with particles <0.95 mu m. Moreover, an overestimation of the cancer risk via inhalation of up to 50% occurred when the size distribution of related compounds was not considered.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 98, p. 410-416
Keywords [en]
Persistent organic pollutants; Particle-bound; Size distribution; Seasonal variation; Human risk assessment
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49774DOI: 10.1016/j.atmosenv.2014.09.001ISI: 000345475000044Scopus ID: 2-s2.0-84907074490OAI: oai:DiVA.org:oru-49774DiVA, id: diva2:918902
Note

Funding Agencies:

Czech Ministry of Education LO1214  LM2011028

EU PITN-GA-2010-264329  226534

Project "Employment of Best Young Scientists for International Cooperation Empowerment" CZ.1.07/2.3.00/30.0037

European Social Fund

State Budget of the Czech Republic

Available from: 2016-04-12 Created: 2016-04-12 Last updated: 2018-06-18Bibliographically approved

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Kukucka, PetrCupr, Pavel

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