Determination of Emission Factors of Pollutants From Biomass Burning of African Fuels in Laboratory Measurements
Determination of Emission Factors of Pollutants From Biomass Burning of African Fuels in Laboratory Measurements
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DOI：
10.1029/2021jd034731
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发表时间：
2021-10-27
影响因子：
4.4
通讯作者：
Bililign, Solomon
中科院分区：
文献类型：
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作者：
Pokhrel, Rudra P.;Gordon, Janica;Bililign, Solomon
生物质燃烧 (BB) 是影响当地、区域和全球气候、空气质量和公共卫生的主要污染物来源。然而，燃烧条件和燃料类型对污染物排放因子的影响仍不清楚。在这里，我们介绍了对六种不同的撒哈拉以南非洲生物质燃料在各种燃烧条件（从阴燃到燃烧）下燃烧的污染物排放因子（EF）的实验室研究结果。我们发现颗粒物 (PM) 和一氧化碳 (CO) EF (g (kg wood)(-1)) 对燃烧条件高度敏感，燃烧条件和阴燃条件之间存在一个数量级的变化。一氧化氮 (NO) EF 显示出燃料类型依赖性，氮含量较高的燃料的 NO EF 较高。虽然 CO 通常不能代表 PM2.5 排放量，但在这项工作中发现了七种含水量（干基）木材燃料燃烧产生的 CO 和 PM 排放量之间的相关性
Biomass burning (BB) is a major source of pollutants that impact local, regional, and global climate, air quality, and public health. However, the influence of burning conditions and fuel type on the emission factors of pollutants is still not well understood. Here, we present the results from a laboratory study of emission factors (EFs) of pollutants from six different sub-Saharan African biomass fuels combusted under a wide range of burning conditions, ranging from smoldering to flaming. We found that particulate matter (PM) and carbon monoxide (CO) EFs (g (kg wood)(-1)) are highly sensitive to the burning conditions, with an order of magnitude variation between flaming and smoldering burning conditions. Nitric oxide (NO) EF shows a fuel type dependence, with higher NO EFs for fuels with larger nitrogen content. While CO is not generally a proxy for PM2.5 emissions, in this work a correlation was found between CO and PM emissions generated by combustion of seven wood fuels with moisture content (dry basis)