| Title: | Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan |
| Author(s): | Matsunaga SN; Chatani S; Nakatsuka S; Kusumoto D; Kubota K; Utsumi Y; Enoki T; Tani A; Hiura T; |
| Address: | "Auto Oil and New Fuels Department, Japan Petroleum Energy Center, 4-3-9 Toranomon, Minato-Ku, Tokyo 105-0001, Japan. s-matsunaga@pecj.or.jp" |
| DOI: | 10.1016/j.chemosphere.2012.01.040 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Reactive volatile organic compounds (VOCs) are known to affect atmospheric chemistry. Biogenic VOCs (BVOCs) have a significant impact on regional air quality due to their large emission rates and high reactivities. Diterpenes (most particularly, kaur-16-ene) were detected in all of the 205 enclosure air samples collected over multiple seasons at two different sites from Cryptomeria japonica and Chamaecyparis obtusa trees, the dominant coniferous trees in Japan,. The emission rate of kaur-16-ene, was determined to be from 0.01 to 7.1 mug dwg(-1) h(-1) (average: 0.61 mug dwg(-1) h(-1)) employing branch enclosure measurements using adsorbent sampling followed by solid phase-liquid extraction techniques. The emission rate was comparable to that of monoterpenes, which is known major BVOC emissions, collected from the same branches. In addition, total emission of kaur-16-ene at 30 degrees C was estimated to exceed that of total anthropogenic VOC emissions" |
| Keywords: | Chamaecyparis/*chemistry Cryptomeria/*chemistry Diterpenes/*analysis/chemistry/isolation & purification Japan Trees/*chemistry Volatile Organic Compounds/*analysis/chemistry/isolation & purification Volatilization; |
| Notes: | "MedlineMatsunaga, Sou N Chatani, Satoru Nakatsuka, Seiji Kusumoto, Dai Kubota, Katsuyoshi Utsumi, Yasuhiro Enoki, Tsutomu Tani, Akira Hiura, Tsutom eng Research Support, Non-U.S. Gov't England 2012/02/22 Chemosphere. 2012 May; 87(8):886-93. doi: 10.1016/j.chemosphere.2012.01.040. Epub 2012 Feb 17" |
