A prescribed burn was conducted in October 2017 at the University of Michigan Biological
Station located in Pellston, Michigan. Approximately 0.025 km2 of a temperate forest,
primarily composed of red and white pine, red oak, bigtooth aspen, and red maple, were
burned. The resulting smoke was sampled with a combination of real-time trace gas and
aerosol instrumentation aboard the Aerodyne Mobile Laboratory. The resulting data were
segmented into six plume periods, and the gas and particle concentration and composition …

Organic Carbon-Nitrate-Sulfate Particle Type 6.5±0.3%, by number, of the 5,894 total
individual particles measured during the smoke plume periods did not correspond to
biomass burning particles and were instead classified as organic carbon-nitrate-sulfate
(Figure S5). The organic carbon-nitrate-sulfate individual particles measured with the
ATOFMS had prominent organic carbon positive ion markers (m/z 27 (C2H3+ and/or CHN+),
37 (C3H+), and 43 (C2H3O+, CHNO+ and/or C3H7+)), and negative organic nitrogen ion …