...
首页> 外文期刊>Atmospheric chemistry and physics >Field measurements of trace gases and aerosols emitted by peat fires in Central Kalimantan, Indonesia, during the 2015 El Ni?o
【24h】

Field measurements of trace gases and aerosols emitted by peat fires in Central Kalimantan, Indonesia, during the 2015 El Ni?o

机译:在2015年El Ni的泥炭火灾中,泥炭火灾发出的痕迹气体和气溶胶的田间测量

获取原文
获取原文并翻译 | 示例
           

摘要

Peat fires in Southeast Asia have become a major annual source of trace gases and particles to the regional- global atmosphere. The assessment of their influence on atmospheric chemistry, climate, air quality, and health has been uncertain partly due to a lack of field measurements of the smoke characteristics. During the strong 2015 El Ni?o event we deployed a mobile smoke sampling team in the Indonesian province of Central Kalimantan on the island of Borneo and made the first, or rare, field measurements of trace gases, aerosol optical properties, and aerosol mass emissions for authentic peat fires burning at various depths in different peat types. This paper reports the trace gas and aerosol measurements obtained by Fourier transform infrared spectroscopy, whole air sampling, photoacoustic extinctiometers (405 and 870 nm), and a small subset of the data from analyses of particulate filters. The trace gas measurements provide emission factors (EFs; grams of a compound per kilogram biomass burned) for up to ~90 gases, including CO_2, CO, CH_4, non-methane hydrocarbons up to C_(10), 15 oxygenated organic compounds, NH_3, HCN, NO_x , OCS, HCl, etc. The modified combustion efficiency (MCE) of the smoke sources ranged from 0.693 to 0.835 with an average of 0.772±0.053 (n=35), indicating essentially pure smoldering combustion, and the emissions were not initially strongly lofted. The major trace gas emissions by mass (EF as g kg~(-1)) were carbon dioxide (1564±77), carbon monoxide (291±49), methane (9.51±4.74), hydrogen cyanide (5.75±1.60), acetic acid (3.89±1.65), ammonia (2.86±1.00), methanol (2.14±1.22), ethane (1.52±0.66), dihydrogen (1.22±1.01), propylene (1.07±0.53), propane (0.989±0.644), ethylene (0.961±0.528), benzene (0.954±0.394), formaldehyde (0.867±0.479), hydroxyacetone (0.860±0.433), furan (0.772±0.035), acetaldehyde (0.697±0.460), and acetone (0.691±0.356). These field data support significant revision of the EFs for CO_2 (-8 %), CH_4
机译:东南亚的泥炭火灾已成为区域 - 全球气氛的主要痕量气体和颗粒的主要来源。由于缺乏烟雾特性的缺失的现场测量,对其对大气化学,气候,空气质量和健康影响的影响的评估已经不确定。在强大的2015年EL NI?o活动期间,我们在婆罗洲岛上部署了印度尼西亚省中央卡马丹省的移动烟斗​​采样队,并制作了痕量气体,气溶胶光学性质和气溶胶批量排放的第一或罕见的现场测量对于正宗的泥炭火灾,在不同的泥炭类型中以各种深度燃烧。本文报道了通过傅里叶变换红外光谱,整个空气采样,光声灭菌器(405和870nm)获得的痕量气体和气溶胶测量,以及来自分析颗粒过滤器的数据的一小部分。痕量气体测量提供排放因子(EFS;克克每千克生物量燃烧的化合物),最高可达〜90个气体,包括CO_2,CO,CH_4,非甲烷烃,高达C_(10),15个氧化有机化合物,NH_3 ,HCN,NO_X,OCS,HCl等。烟雾源的改性燃烧效率(MCE)的范围为0.693至0.835,平均值为0.772±0.053(n = 35),表明基本上纯净的闷烧燃烧,排放量最初没有强烈倾斜。质量的主要痕量气体排放(EF为G kg〜(-1))是二氧化碳(1564±77),一氧化碳(291±49),甲烷(9.51±4.74),氰化氢(5.75±1.60),乙酸(3.89±1.65),氨(2.86±1.00),甲醇(2.14±1.22),乙烷(1.52±0.66),二氢(1.22±1.01),丙烯(1.07±0.53),丙烷(0.989±0.644),乙烯(0.961±0.528),苯(0.954±0.394),甲醛(0.867±0.479),羟基丙酮(0.860±0.433),呋喃(0.772±0.035),乙醛(0.697±0.460)和丙酮(0.691±0.356)。这些现场数据支持CO_2(-8%),CH_4的EFS的重大修订

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号