RAPID: Fast Mobility Particle Size Measurements during the 4th Fire Lab at Missoula Experiment (FLAME IV) Study

该项目将在密苏拉第四火灾实验室(FLAME IV)研究期间实施快速颗粒尺寸分布测量。测量将使用快速移动粒子测量仪(FMPS)进行，该仪器(1)能够测量新鲜烟雾气溶胶的感兴趣的尺寸范围，(2)具有对所有烧伤都有用的快速时间响应，以及(3)能够测量高浓度。这些都是生物质燃烧产生的气溶胶在火焰实验中的特征，特别是持续时间较短(从点火到熄火和阴燃的几分钟到几十分钟)的堆烧实验。这些测量将与其他几个研究人员的测量结果相辅相成，包括冰核和燃烧排放的二次有机气溶胶的演变。这项研究将有助于阐明生物质烟雾的基本物理化学性质，对烟雾气溶胶的健康和气候影响非常重要。该项目是私营部门和学术伙伴之间的独特合作，有可能导致这一领域的进一步发展。更广泛的影响集中在十年前首席调查员和该项目的其他调查人员之间开始的FLAME合作的继续。虽然学生没有得到直接支持，但预计将发展非正式学习机会和与作为FLAME研究一部分工作的学生的合作。此外，到目前为止，首席调查员的研究和工作活动的结果已经成功地融入到他在前岭社区学院的兼职教师职位的课堂中，并成功地融入到区域空气质量会议和附近高等教育机构的研讨会中。该项目将加强区域空气质量研究和教育界之间的合作。

This project will implement fast particle size distributions measurements during the 4th Fire Lab at Missoula Experiment (FLAME IV) Study. The measurements will be made with a Fast Mobility Particle Sizer (FMPS) that is (1) capable of measuring the size range of interest for fresh smoke aerosols, (2) has fast time response that will be useful for all burns, and (3) is capable of measuring high concentrations. These are all characteristics of the aerosol produced by biomass burns in the FLAME experiments, particularly stack burn experiments of relatively short duration (minutes to tens of minutes from ignition to flame out and smoldering). The measurements will be complementary to those of several other investigators that include ice nuclei and evolution of secondary organic aerosols from the burn emissions. The research will help to elucidate fundamental physicochemical properties of biomass smoke, important to health and climate impacts of smoke aerosols.The project is a unique collaboration between private sector and academic partners that has potential to lead to further developments in this arena. Broader impacts center on the continuation of FLAME collaborations begun a decade ago between the principal investigator and the other investigators on the project. Although students are not directly supported, it is anticipated that informal learning opportunities and collaborations with students working as part of the FLAME study will develop. Moreover, results to date from the principal investigator's research and work activities have been successfully integrated into the classroom in his adjunct faculty position at Front Range Community College and into seminars presented at regional air quality meetings and at nearby institutions of higher learning. The project will enhance collaborations within the regional air quality research and education community.