Partitioning of dioxins (PCDDs/Fs) in ambient air at urban residential locations

Rahman, Md Mahmudur, Shon, Z-H., Ma, C-J., Brown, R.J.C., Pandey, S.K., Park, C.G., Bae, I.S., Sohn, J.R., Yoon, H-O., & Kim, K-H. (2014) Partitioning of dioxins (PCDDs/Fs) in ambient air at urban residential locations. International Journal of Environmental Science and Technology, 11(7), pp. 1897-1910.

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In this work, 17-polychlorinated dibenzo-pdioxin/furan (PCDD/Fs) isomers were measured in ambient air at four urban sites in Seoul, Korea (from February to June 2009). The concentrations of their summed values RPCDD/Fs) across all four sites ranged from 1,947 (271 WHO05 TEQ) (Jong Ro) to 2,600 (349 WHO05 TEQ) fg/m3 (Yang Jae) with a mean of 2,125 ± 317) fg/m3 (292 WHO05 TEQ fg/m3). The sum values for the two isomer groups of RPCDD and RPCDF were 527 (30 WHO05 TEQ) and 1,598 (263 WHO05 TEQ) fg/m3, respectively. The concentration profile of individual species was dominated by the 2,3,4,7,8-PeCDF isomer, which contributed approximately 36 % of the RPCDD/Fs value. The observed temporal trends in PCDD/F concentrations were characterized by relative enhancement in the winter and spring. The relative contribution of different sources, when assessed by principal component analysis, is explained by the dominance of vehicular emissions along with coal (or gas) burning as the key source of ambient PCDD/Fs in the residential areas studied.

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ID Code: 72040
Item Type: Journal Article
Refereed: Yes
Keywords: PCDD/Fs, Gas/particle partitioning, Residential area, Seasonal variation
DOI: 10.1007/s13762-013-0389-7
ISSN: 1735-1472
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Springer
Deposited On: 22 May 2014 22:30
Last Modified: 25 Jun 2017 23:21

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