Title: Indoor Particulate Matter during HOMEChem: Concentrations, Size Distributions, and Exposures.
Authors: Patel, Sameer; Sankhyan, Sumit; Boedicker, Erin K; DeCarlo, Peter F; Farmer, Delphine K; Goldstein, Allen H; Katz, Erin F; Nazaroff, William W; Tian, Yilin; Vanhanen, Joonas; Vance, Marina E
Published In Environ Sci Technol, (2020 06 16)
Abstract: It is important to improve our understanding of exposure to particulate matter (PM) in residences because of associated health risks. The HOMEChem campaign was conducted to investigate indoor chemistry in a manufactured test house during prescribed everyday activities, such as cooking, cleaning, and opening doors and windows. This paper focuses on measured size distributions of PM (0.001-20 μm), along with estimated exposures and respiratory-tract deposition. Number concentrations were highest for sub-10 nm particles during cooking using a propane-fueled stovetop. During some cooking activities, calculated PM2.5 mass concentrations (assuming a density of 1 g cm-3) exceeded 250 μg m-3, and exposure during the postcooking decay phase exceeded that of the cooking period itself. The modeled PM respiratory deposition for an adult residing in the test house kitchen for 12 h varied from 7 μg on a day with no indoor activities to 68 μg during a simulated day (including breakfast, lunch, and dinner preparation interspersed by cleaning activities) and rose to 149 μg during a simulated Thanksgiving day.
PubMed ID: 32391692
MeSH Terms: Adult; Air Pollutants*/analysis; Air Pollution, Indoor*/analysis; Cooking; Environmental Monitoring; Housing; Humans; Particle Size; Particulate Matter/analysis