| Sampling Rate Evaluation of Atmospheric PAHs to Pine Needles for Passive Air Sampler |
| PAS를 위한 대기 중 PAHs의 소나무잎 침착율 산정 |
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천만영 |
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한경대학교 |
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| Abstract |
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This study was carried out to use pine needles as passive air sampler (PAS) of atmospheric polycyclic aromatic hydrocarbons (PAHs). PAHs concentrations in ambient air (C_a) and pine needles (C_p) were analyzedsimultaneously from June 1 to December 31 using low volume PUF active air sampler. Furthermore, sampling rates (m3/day-g dry) of PAHs in the air to pine needles were calculated using C_a and C_p. Average samplingrate was 0.16 (0.00068-0.91) m³/day-g dry, which was the greatest in PAHs (Pyr, BkF, BaA, Chry, BbF, and BkF) with molecular weight of 202.26-252.32 and octanol-air partitioning coefficient (logK_oa) of 8.61-11.37. These values were the lowest with respect to PUF disk, XAD-2 resin and semipermeable membrane devices (SPMDs) PAS, demonstrating that pine needles are suitable for long time PAS as a result of very low sampling rates |
| Key Words:
Air, Pine needles, PAHs, Passive air sampler (PAS), Sampling rate |
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