Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD028488 |
Ground-Based Field Measurements of PM2.5 Emission Factors From Flaming and Smoldering Combustion in Eucalypt Forests | |
Reisen, F.1; Meyer, C. P.1; Weston, C. J.2; Volkova, L.2 | |
2018-08-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:15页码:8301-8314 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | In fire-prone areas such as southern Australia and parts of the United States, prescribed burning is a common fire management tool to reduce fuel load for wildfire suppression purposes. The burns are typically undertaken during calm and stable conditions when the burn extent and duration can be carefully controlled. This often coincides with poor atmospheric ventilation, leading to a buildup of smoke, which can impact air quality and human health. The low intensity of these burns also means that the plume is less buoyant and the main impact on local populations is due to emissions during the slow and prolonged smoldering combustion of heavy fuels. This study presents emission measurements of PM2.5 at prescribed burns in eucalypt forests of southern Australia using a smoke collection method suitable for both flaming combustion of fine fuels and residual smoldering combustion of heavy fuels and logs. The median PM2.5 emission factors (EFs) measured were 16.9-g/kg fuel during flaming combustion and 38.8-g/kg fuel during smoldering combustion. The correlation between PM2.5 EFs and modified combustion efficiency highlights two distinct trends at low modified combustion efficiency, attributed to the distinct combustion processes of glowing char combustion and pyrolysis. Hence, two distinct relationships were developed that best fitted the measurements and that can be used to extrapolate measured EFs to a wider range of fuel and burning conditions. The results from this study addressed a gap in our knowledge of particle emissions during burns in eucalypt forests under different burning conditions and help to better forecast and manage air quality impacts from prescribed burns on nearby communities. |
英文关键词 | particles residual smouldering combustion modified combustion efficiency coarse woody debris litter |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443566900028 |
WOS关键词 | BIOMASS-BURNING EMISSIONS ; WILDLAND FIRE EMISSIONS ; SOUTH-EASTERN AUSTRALIA ; PARTICLE EMISSIONS ; PRESCRIBED FIRES ; TRACE GASES ; PARTICULATE MATTER ; UNITED-STATES ; AIR-QUALITY ; PEAT FIRES |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33819 |
专题 | 气候变化 |
作者单位 | 1.CSIRO Oceans & Atmosphere, Climate Sci Ctr, Aspendaie, Vic, Australia; 2.Univ Melbourne, Sch Ecosyst & Forest Sci, Fac Sci, Creswick, Vic, Australia |
推荐引用方式 GB/T 7714 | Reisen, F.,Meyer, C. P.,Weston, C. J.,et al. Ground-Based Field Measurements of PM2.5 Emission Factors From Flaming and Smoldering Combustion in Eucalypt Forests[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(15):8301-8314. |
APA | Reisen, F.,Meyer, C. P.,Weston, C. J.,&Volkova, L..(2018).Ground-Based Field Measurements of PM2.5 Emission Factors From Flaming and Smoldering Combustion in Eucalypt Forests.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(15),8301-8314. |
MLA | Reisen, F.,et al."Ground-Based Field Measurements of PM2.5 Emission Factors From Flaming and Smoldering Combustion in Eucalypt Forests".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.15(2018):8301-8314. |
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