Trial to Capture Emissions of Biogenic Volatile Organic Compounds from Plants Utilizing a Total Ozone Reactivity Analyzer Combined with an Enclosure

DOI Open Access
  • Matsumoto Jun
    Faculty of Human Sciences, Waseda University
  • Kato Shungo
    Faculty of Urban Environmental Science, Tokyo Metropolitan University

Bibliographic Information

Other Title
  • エンクロージャー法／オゾン反応性測定装置を用いた植物由来揮発性有機化合物の放出把握の試み

Abstract

<p>To capture biogenic volatile organic compounds, BVOCs, emitted from plants, the original analyzer for total ozone reactivity RO3 was combined with the branch enclosure, BE, to establish the BE/RO3 measurement system. The detection limit of the RO3 emission factor ERO3 was 3.6×10−7 s−2 (300 s average, S/N=3). The BE/RO3 was utilized to quantify RO3 in the BVOC samples emitted from outside nursery plants for 50 consecutive 50 days. When Q.Serrata was analyzed, diurnal variation patterns with daytime peaks were observed during hot days. Especially, in extremely hot days, the RO3 started to increase in the midmorning due to the high temperature. Relative variations of RO3 roughly agreed with the G93-model prediction. Individual compounds of the BVOCs were also monitored several times and their fractions in RO3 were evaluated. The total contributions of the unmeasured BVOCs to RO3 were found to be significant. The temperature dependence of RO3 in the Q.Serrata samples was evaluated and the temperature factor β was determined to be 0.12 K−1. It was experimentally confirmed that β of the ambient RO3 previously observed in the neighboring forest (0.23 K−1) could be explained as a combination of the BVOCs from isoprene-emitting plants and those from large-β monoterpene-emitting plants.</p>

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Details 詳細情報について

  • CRID
    1390576689850529536
  • DOI
    10.11298/taiki.58.47
  • ISSN
    21854335
    13414178
  • Text Lang
    ja
  • Data Source
    • JaLC
    • KAKEN
  • Abstract License Flag
    Disallowed

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