葡萄牙某桉树林中挥发性有机化合物的鉴定与定量研究

K.M. Cooke , S. Hassoun , S.M. Saunders , M.J. Pilling
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引用次数: 7

摘要

在葡萄牙的一片桉树林中开展了一项实地活动,以确定和量化农村地区的环境挥发性有机化合物,重点是异戊二烯及其反应产物。与本研究相结合,还研究了更高分子量的挥发性有机化合物。在该位点共鉴定出53个较高分子量的化合物,其中44个被量化,发现其分子量在0.002至8 ppbv之间。发现的化合物范围表明,挥发性有机化合物既有生物源的,也有人为源的,这表明运输效应在现场很重要。单萜类化合物的日变化是确定的。将环境中单萜烯含量与桉树排放数据进行比较,表明单萜烯的来源除桉树外还有其他来源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Identification and quantification of volatile organic compounds found in a eucalyptus forest during FIELDVOC'94 in Portugal

A field campaign was carried out in a eucalyptus forest in Portugal to identify and quantify ambient VOCs in a rural area, with the emphasis on isoprene and it's reaction products. In conjunction with this study, the higher molecular weight VOCs were also investigated. In total, 53 higher molecular weight compounds were identified at the site, 44 of which were quantified and found to be between 0.002 and 8 ppbv. The range of compounds found suggested that there were both biogenic and anthropogenic sources of VOCs, which indicated that transport effects were of importance at the site. A definite diurnal variation of the monoterpenes was observed. Comparison of the ambient levels of the monoterpenes with emission data from the eucalyptus obtained at the site suggested that there was a source other than the eucalyptus trees for monoterpenes.

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