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KMID : 1156220150410020116
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Journal of Environmental Health Sciences
2015 Volume.41 No. 2 p.116 ~ p.125
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Estimation of PCDD/Fs Concentrations in Ambient Air Using Pine Needles as a Passive Air Sampler (PAS)
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Chun Man-Young
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Abstract
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Objective: This study was carried out to use pine needles as a passive air sampler (PAS) for atmospheric polychlorinared dibenzo-p-dioxins/furans (PCDD/Fs).
Methods: PCDD/Fs concentrations in ambient air (Ca, pg/m3) and deposited pine needles (Cp, pg/g dry) were analyzed simultaneously from June 1 to December 31. Air samples were taken using two low volume PUF active air samplers with an overall average air volume of approximately 1,200 Sm3. Pine needles were collected the end of December near the air sampler. PCDD/Fs was analyzed by HRGC/HRMs.
Results: A good correlation was shown (R2=0.6357, p=0.0001) between Ca and Cp, but a better correlation (R2=0.7372, p<0.0001) existed between the logarithm of octanol-air partitioning coefficient (LogKoa) and Log(Cp/Ca). The average PCDD/Fs sampling rates from air to pine needles were 0.045(0.018-0.185 m3/day-g dry).
Conclusion: It was found that pine needles can be used as PAS for atmospheric PCDD/Fs, and they are especially suitable for long time PAS compared to PUF disk PAS.
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KEYWORD
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Air , logKoa-log(Cp/Ca) , Passive air sampler (PAS) , PCDD/Fs , Pine needles
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