산림 대기중 인위적 VOCs와 자연적 VOCs의 농도 비교 연구
Comparison of Anthropogenic and Natural VOC Concentrations in the Forest Ambient Air
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Abstract
The ambient concentrations of benzene, toluene, and α-/β-pinene were measured at the Gumsung mountain site, also the ambient concentrations of VOCs were investigated from forests of Cryptomeria japonica and Pinus koraiensis. The mean concentration of benzene for this study was 62.6±43.9 pptv (Min. 20.4~Max. 151.2 pptv), and that of toluene was 619.8±330.2 pptv (264.8~1,386 pptv) at the site. It was observed that the concentrations of α-pinene and β-pinene were 169.0± 97.7 pptv (72.9~396.1 pptv) and 34.9±27.9 pptv (7.5~95.9 pptv), respectively. The ambient concentrations of aromatic and natural VOCs were found at the pptv level. In this study, the toluene/benzene ratios were 13.9±11.2, but they were a little higher than those found in Korea and approximately 5 times greater than the values in the foreign countries. The α-pinene/toluene ratios ranged between 0.31 and 0.81, and this range was found to be similar to the foreign cases.
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