Concentrations and gas/particle partitioning of PCBs in Chicago

Taşdemir, Yücel; Vardar, Nedim; Odabaşı, Mustafa; Holsen, Thomas M.

doi:10.1016/j.envpol.2004.02.031

Cited by 95 publications

(50 citation statements)

References 49 publications

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“…Atmospheric PCB concentrations presented in this study (sum of 12 PCBs) were significantly lower than those observed at urban and rural areas of Korea (sum of 20 PCBs, 3 ) (Yeo et al, 2004) and the mixed institutional, residential, and commercial area in Chicago, USA (sum of 20 PCBs, 0.4-8.3 ng/m 3 ) (Tasdemir et al, 2004b). However, the TEQ levels presented in this study were comparable to those observed in north Taiwan (2.23-4.49 fg WHO-TEQ/m 3 ) (Chi et al, 2008) and southern Taiwan near a municipal solid waste incinerator (4.66-8.81 fg WHO-TEQ/m 3 ) (Wang et al, 2010a).…”

Section: Ambient Air Pcdd/f and Pcb Concentrationsmentioning

confidence: 82%

“…It is mainly caused by the larger analytical error due to the lower concentrations of the higher chlorinated congeners. An increase in the gas phase fraction of PCBs during spring (warm season) was observed in this study, it was caused mainly because of the atmospheric variables including temperature, wind speed, and wind direction (Brunciak et al, 2001;Tasdemir et al, 2004b).…”

Section: Gas-particle Partitioning Of Pcdd/fs and Pcbsmentioning

confidence: 91%

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Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

Lin

et al. 2012

Aerosol Air Qual. Res.

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Dry deposition is one of the major routes by which air pollutants enter the ecosystem, and thus this study investigated the dry deposition characteristics of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and biphenyls (PCBs) in the ambient air of industrial, urban, and rural areas in southern Taiwan from November 2010 to May 2011. Average dry deposition fluxes of total PCDD/Fs and PCBs in the ambient air of four sites were 157-544 pg/m 2 -day (8.30-27.5 pg I-TEQ/m 2 -day) and 289-1010 pg/m 2 -day (0.540-1.94 pg WHO-TEQ/m 2 -day), respectively. The results showed that particle phase depositions dominated the dry deposition processes for the removal of PCDD/Fs and PCBs from the atmosphere, and the atmospheric deposition flux in the cold season tended to be higher than that during the warm season. The dry deposition velocity of individual PCDD/Fs (0.031-0.546 cm/s) increased as the number of chlorinated substitutes increased, which were similar to those measured or predicted in other Asian countries. Similar patterns of dry deposition velocities were observed for individual PCBs (0.069-3.38 cm/s), due to the fact that low chlorinated PCBs are predominant in gas phase and have lower deposition velocities.

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Section: Ambient Air Pcdd/f and Pcb Concentrationsmentioning

confidence: 82%

Section: Gas-particle Partitioning Of Pcdd/fs and Pcbsmentioning

confidence: 91%

Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

Lin

et al. 2012

Aerosol Air Qual. Res.

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“…Tasdemir reported the mean concentrations of Σ 50 PCBs ranged between 0.4 and 8.3 ng/m 3 in the ambient air of Chicago [11] . The PCB profiles were shown in Figure 1(b) with the lighter congener PCB-28 dominating the profile patterns.…”

Section: Quality Assurance and Quality Controlmentioning

confidence: 99%

Concentrations, profiles and gas-particle partitioning of PCDD/Fs, PCBs and PBDEs in the ambient air of an E-waste dismantling area, southeast China

et al. 2008

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“…When semi-volatile organic compounds (SOCs), such as PCDD/Fs, PCBs, and PBDEs, are emitted into the air, they can be partitioned between the gas and particulate phases related to their vapor pressures, temperature, and concentrations of total suspended particulates in the atmosphere (Hoff et al, 1996;Lohmann and Jones, 1998;Tasdemir et al, 2004). Gas/particle partitioning is therefore an important factor in understanding the environmental fate of PBDEs and other SOCs.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Concentrations and Dry Deposition of Polybrominated Diphenyl Ethers in Southern Taiwan

Lin

Chang

Liao

et al. 2012

Aerosol Air Qual. Res.

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While polybrominated diphenyl ethers (PBDEs) have been used extensively for decades as flame retardants in a variety of consumer and commercial products, concerns about these substances have risen due to their adverse effects on human health. To the best of our knowledge, no study has reported on the dry deposition flux and velocity of individual PBDEs. This study was undertaken to investigate the dry deposition characteristics of PBDEs in the ambient air of southern Taiwan. The average atmospheric concentrations for total PBDEs (sum of thirty BDEs) ranged from 24.0 ± 1.83 to 102 ± 13.3 pg/Nm 3 . The calculated dry deposition fluxes of total PBDEs were 13.4-60.4 ng/m 2 -day, BDE 209 accounted for over 75% of the total PBDEs. The results showed that particle phase deposition dominated the dry deposition processes for PBDEs, and the same trends have been observed in other semi-volatile organic compounds (SOCs). The dry deposition velocities of individual PBDEs increased along with the number of brominated substitutes, ranging from 0.014 to 0.755 cm/s. Together with the results of the author's previous work, the deposition flux of total PBDEs could reach three orders of magnitude higher than those of PCDD/Fs (157-544 pg/m 2 -day) and PCBs (89-1010 pg/m 2 -day). Since atmosphere deposition is believed to be the main transfer pathway for SOCs entering food chains, its impact on human exposure to PBDEs is of great importance.

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Concentrations and gas/particle partitioning of PCBs in Chicago

Cited by 95 publications

References 49 publications

Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

Atmospheric Dry Deposition of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/Fs) and Polychlorinated Biphenyls (PCBs) in Southern Taiwan

Concentrations, profiles and gas-particle partitioning of PCDD/Fs, PCBs and PBDEs in the ambient air of an E-waste dismantling area, southeast China

Atmospheric Concentrations and Dry Deposition of Polybrominated Diphenyl Ethers in Southern Taiwan

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