Collaborative Research: The Secondary Organic Aerosol Formation from the Oxidation of Furan-compounds to Understand the Atmospheric Impacts of Biomass Burning Smoke

该项目正在调查生物质燃烧产生的排放以及这些排放对空气质量和气候的影响。 将进行实验室研究，以量化呋喃化合物的排放量（即，那些含有4-碳，1-氧芳环）从生物质燃烧，并确定这些化合物在大气中的命运。 该项目的结果可以纳入生物质燃烧化学对局部、区域和全球尺度影响的建模中。该项目的具体目标是：n（1）识别呋喃化合物的OH和NO3氧化产生的有机化合物，并量化它们对SOA产率的贡献;（2）确定这种氧化化学反应以及产生的O3和SOA如何随NMOC/NOx比、温度和RH而变化;（3）利用上述结果，对生物质燃烧羽流中这些呋喃化合物的氧化机理进行了详细的研究;以及（4）量化这种新机制如何改变生物质燃烧对大气O3和PM2.5的预测影响。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查进行评估，被认为值得支持的搜索.

This project is investigating emissions from biomass combustion and the implications of these emissions on air quality and climate. Laboratory studies will be conducted to quantify the emissions of furan compounds (i.e., those containing a 4-carbon, 1-oxygen aromatic ring) from biomass burning and to determine the fate of these compounds in the atmosphere. The results of this project can be incorporated into the modeling of the impacts of biomass burning chemistry on local, regional, and global scales.The specific objectives of this project are to:n(1) Identify the organic compounds produced by the OH and NO3 oxidation of furan compounds and quantify their contribution to the SOA yield; (2) Determine how this oxidation chemistry, and the O3 and SOA produced, varies with NMOC/NOx ratio, temperature, and RH; (3) Use the above results to develop a detailed mechanism for the oxidation of these furan compounds in biomass burning plumes; and (4) Quantify how this new mechanism alters the predicted impacts of biomass burning on atmospheric O3 and PM2.5.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.