소나무 잎을 PAS로 이용하여 대기 중 PCDD/Fs 농도 추정
Estimation of PCDD/Fs Concentrations in Ambient Air Using Pine Needles as a Passive Air Sampler (PAS)
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참고문헌
키워드
초록
Objective: This study was carried out to use pine needles as a passive air sampler (PAS) for atmosphericpolychlorinared dibenzo-p-dioxins/furans (PCDD/Fs). Methods: PCDD/Fs concentrations in ambient air (Ca, pg/m3) and deposited pine needles (Cp, pg/g dry) wereanalyzed simultaneously from June 1 to December 31. Air samples were taken using two low volume PUF activeair samplers with an overall average air volume of approximately 1,200 Sm3. Pine needles were collected theend 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) andLog(Cp/Ca). The average PCDD/Fs sampling rates from air to pine needles were 0.045(0.018-0.185 m3/day-gdry). Conclusion: It was found that pine needles can be used as PAS for atmospheric PCDD/Fs, and they areespecially suitable for long time PAS compared to PUF disk PAS.
Abstract
Objective: This study was carried out to use pine needles as a passive air sampler (PAS) for atmosphericpolychlorinared dibenzo-p-dioxins/furans (PCDD/Fs). Methods: PCDD/Fs concentrations in ambient air (Ca, pg/m3) and deposited pine needles (Cp, pg/g dry) wereanalyzed simultaneously from June 1 to December 31. Air samples were taken using two low volume PUF activeair samplers with an overall average air volume of approximately 1,200 Sm3. Pine needles were collected theend 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) andLog(Cp/Ca). The average PCDD/Fs sampling rates from air to pine needles were 0.045(0.018-0.185 m3/day-gdry). Conclusion: It was found that pine needles can be used as PAS for atmospheric PCDD/Fs, and they areespecially suitable for long time PAS compared to PUF disk PAS.
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