演題概要

オーラルセッション

第3日　5月13日（水）　16:10～16:30　C会場（1101/02）

3C-O15-1610　　PDF

北米西部の山火事で発生する揮発性有機化合物の地球イメージング

(¹横市大院生命ナノ・ ²阪大院理・ ³米国立海洋大気庁)
^o関本奏子^1,2・ Coggon, Matthew³・ Gkatzelis, Georgios³・ Warneke, Carsten³

Biomass burning in wildfires is a large source of volatile organic compounds (VOCs) and other trace species to the atmosphere. Reactions involving these VOCs produce secondary organic aerosols, which are important air pollutants and radiative forcing agents. NOAA and NASA led the FIREX-AQ project to study emissions of trace gases and aerosols from western US wildfires, in which “global-scale imaging” was performed using airplanes. We measured VOCs in plumes of various wildfires using proton-transfer-reaction mass spectrometer (PTR-MS) to examine VOC composition and emission rates, as well as aging chemistry of VOCs primarily emitted from the wildfires.