Characterizing the Impacts of Biomass Burning to Indoor and Outdoor Environments During Wintertime in Fairbanks, Alaska: An overview of the ALPACA House Measurements

PETER F. DECARLO, Ellis Robinson, Andrew Holen, Judy Wu, Kerri Pratt, Karolina Cysneiros de Carvalho, Brent Williams, Damien Ketcherside, Vanessa Selimovic, Robert J. Yokelson, Lu Hu, Ting Fang, Sukriti Kapur, Kasey Edwards, Manabu Shiraiwa, Kayane Dingilian, Yuhan Yang, Michael Battaglia, Rodney J. Weber, Tianren Wu, Dusan Licina, Jingqiu Mao, William Simpson, Johns Hopkins University

     Abstract Number: 309
     Working Group: Biomass Combustion: Outdoor/Indoor Transport and Indoor Air Quality

Abstract
The Alaskan Layered Pollution And Chemical Analysis (ALPACA) Campaign took place in Fairbanks, AK in January and February of 2022. Cold and dark conditions prevalent Arctic and Sub-arctic cities during winters frequently lead to the build-up of air pollution. The highest levels of outdoor air pollution are frequently driven by home heating, particularly biomass combustion. As a part of the larger ALPACA effort, a residential home in Fairbanks was selected as a measurement site for detailed chemical measurements of outdoor and indoor air pollutants. This presentation will focus on an overview of the house research team results including the characterization of outdoor-to-indoor transport under high pollution levels with extreme temperature gradients (~50C) and the impact of pellet stove usage in the home and other typical residential activities on indoor air quality. The research team used a suite of state-of-the art instrumentation set up in the attached garage inside the house to measure both indoor and outdoor particles and gases. Detailed aerosol and trace gas composition were measured by a suite of instruments including HR-AMS, ATOFMS, SV-TAG, PTR-ToF-MS, WIBS, and cavity ringdown spectroscopy. Health relevant properties of aerosol were investigated using measurements of reactive oxygen species and environmentally persistent free radicals.