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Determination of Atmospheric PCB Level Variations in Continuously Collected Samples

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Abstract

Polychlorinated biphenyls (PCBs) were measured in ambient air samples (n = 48) that were collected for a 2- to 3-day period in each season (winter, spring, summer, fall) of 2013. The samples were collected on the Campus of Uludag University, which is in a semirural region. The samples were collected using a high-volume air sampler. The gas and particle phase concentrations of 87 PCB congeners (Σ87PCB) were measured in these samples. The average gas and particle phase concentrations of the Σ87PCB were calculated to be 293 ± 257 and 52 ± 56 ng/m3, respectively. However, the results of short-term measurements showed that the variation among the measurements in the gas phase was up to 39-fold and up to 84-fold in the particle phase. These results demonstrated that the ambient air PCB concentrations were not stable and changed dramatically on a daily basis. Therefore, it was clear that a small number of samples could not be representative of the entire region. Furthermore, the obtained concentrations showed differences that depended on the meteorological conditions and long distance transportation. The sampling indicated that PCB homologues with 3 or 4 chlorines were dominant.

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Acknowledgments

This work was supported by The Commission of Scientific Research Projects of the Uludag University with Project Number: OUAP (M) 2012/22.

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Correspondence to Yücel Tasdemir.

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Sakin, A.E., Tasdemir, Y. Determination of Atmospheric PCB Level Variations in Continuously Collected Samples. Arch Environ Contam Toxicol 71, 235–245 (2016). https://doi.org/10.1007/s00244-016-0291-7

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  • DOI: https://doi.org/10.1007/s00244-016-0291-7

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