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Başlık: Deposition of polycyclic aromatic hydrocarbons (PAHs) and their mass transfer coefficients determined at a trafficked site
Yazarlar: Uludağ Üniversitesi/Mühendislik Fakültesi/Çevre Mühendisliği Bölümü.
Taşdemir, Yücel
Esen, Fatma
AAG-9468-2021
AAG-9468-2021
6603118338
10340657500
Anahtar kelimeler: Environmental sciences & ecology
Toxicology
Bursa [Bursa (PRV)]
Bursa [Turkey]
Eurasia
Turkey
Air-water interaction
Atmospheric deposition
Combustion
Concentration (composition)
Gas exchange
Mass transfer
Measurement method
Pah
Traffic congestion
Water-surface sampler
Polychlorinated-biphenyls pcbs
Dry deposition
Lake-michigan
Atmospheric-deposition
Phase deposition
Chesapeake bay
Vapor-phase
Urban site
Green bay
Yayın Tarihi: Ağu-2008
Yayıncı: Springer
Atıf: Taşdemir, Y. ve Esen, F. (2008). ''Deposition of polycyclic aromatic hydrocarbons (PAHs) and their mass transfer coefficients determined at a trafficked site''. Archives of Environmental Contamination and Toxicology, 55(2), 191-198.
Özet: It is difficult to determine the deposition levels of gaseous polycyclic aromatic hydrocarbons (PAHs), as even atmospheric PAHs mainly exist in the gas phase. Gaseous PAH fluxes across the air-water interface were measured in Merinos, Bursa, Turkey. Direct gaseous fluxes of PAHs were measured intermittently for the period August 2004 through May 2005 when there was no precipitation. A modified water surface sampler (WSS), including a filter holder and an XAD-2 resin column, was employed to collect the flux samples. Average gaseous PAH flux into the WSS, determined by analyzing the XAD-2 resin column, was 31,068 +/- 16,035 ng m(-2) d(-1). This flux value was about 90% of the total (gaseous + particulate) PAH flux, which may indicate that gas exchange is a major removal mechanism for atmospheric PAHs in our sampling site. Variations in gas exchange fluxes likely resulted from changes in both meteorological conditions and concentrations whose level depends on many parameters including fuel characteristics and strength, combustion types, and their efficiencies. Vapor phase PAH fluxes were divided by ambient air concentrations measured with a high volume sampler to calculate overall gas phase PAH mass transfer coefficients (MTCs) (K(G)). The calculated average PAH MTC was 0.38 +/- 0.17 cm s(-1). The average MTC is comparable with ones calculated using a similar configuration of a WSS.
URI: https://doi.org/10.1007/s00244-007-9096-z
https://link.springer.com/article/10.1007/s00244-007-9096-z
http://hdl.handle.net/11452/25028
ISSN: 0090-4341
Koleksiyonlarda Görünür:PubMed
Scopus
Web of Science

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