AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
Abstract View
Single Particle Mass Spectrometry Observations of Long Range Transported Biomass Burning Aerosols in Michigan
JAMY LEE, Brady Anderson, Peter-Philip Booth, Jun Liu, Peng Xian, Kerri Pratt, University of Michigan
Abstract Number: 191 Working Group: Biomass Combustion: Emissions, Chemistry, Air Quality, Climate, and Human Health
Abstract Wildfires are a major source of biomass burning particles released into the atmosphere. Biomass burning particles directly impact climate and cause adverse health effects. In recent years, the area burned in the western United States from forest fires has increased. Biomass burning particles released from these fires can travel long distances and impact air quality far downwind. During September 2018, aerosol time-of-flight mass spectrometry (ATOFMS) was used to measure the size and chemical composition of individual atmospheric particles in real-time in Ann Arbor, Michigan. We utilized the Navy Aerosol Analysis and Prediction System (NAAPS) reanalysis and the NOAA Hazard Mapping System Fire and Smoke Product (HMS) to identify smoke traveling from multiple fires across North America to Michigan. A significant portion of the days when smoke was prominently detected was characterized by biomass burning particles coated with oxidized organic carbon, ammonium, nitrate, and sulfate, yielding insights into the long-range aging of wildfire smoke particles.