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Size specific distr...
Size specific distribution of the atmospheric particulate PCDD/Fs, dl-PCBs and PAHs on a seasonal scale : Implications for cancer risks from inhalation
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- Degrendele, Céline (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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- Okonski, Krzysztof (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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- Melymuk, Lisa (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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- Landlová, Linda (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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- Kukucka, Petr, 1982- (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic,MTM
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- Cupr, Pavel (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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- Klánová, Jana (author)
- RECETOX (Research Centre for Toxic Compounds in the Environment), Faculty of Science, Masaryk University, Brno, Czech Republic
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(creator_code:org_t)
- Elsevier, 2014
- 2014
- English.
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In: Atmospheric Environment. - : Elsevier. - 1352-2310 .- 1873-2844. ; 98, s. 410-416
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Persistent organic pollutants; Particle-bound; Size distribution; Seasonal variation; Human risk assessment
- Enviromental Science
- Miljövetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
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