地表火灾排放PM2.5中无机元素与森林地表可燃物含水率的关系
Composition of inorganic elements in fine particulate matter emitted during surface fire in relation to moisture content of forest floor combustibles
森林地面可燃物含水率由于环境因素而不断变化,直接影响火灾过程中释放的颗粒物的成分和排放强度。在本研究中,使用室内生物质燃烧分析装置分析了不同含水量(0%、15%和 30%)的草本可燃材料燃烧产生的细颗粒物(PM2.5)的排放特性。采用电感耦合等离子体质谱仪(ICPMS)测定了PM2.5中无机元素(Zn、K、Mg、Ca等 13 种可测元素)的组成。结果表明,PM2.5排放因子随着可燃物含水率的增加而显著增加,范围为(11.63±0.55)～(36.…查看全部>>
The moisture content of combustible material on the forest floor is constantly changing due to environmental factors,which have a direct impact on the composition and emission intensity of particulate matter released during fire.In this study,an indoor biomass combustion analysis device was used to analyze the emission characteristics of fine particulate matter(PM2.5)from combustion of herbaceous combustible materials with different moisture contents(0%,15%,…查看全部>>
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