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Indoor Air

Title:		Volatile organic compound emissions during HOMEChem
Author(s):		Arata C; Misztal PK; Tian Y; Lunderberg DM; Kristensen K; Novoselac A; Vance ME; Farmer DK; Nazaroff WW; Goldstein AH;
Address:		"Department of Chemistry, University of California, Berkeley, California, USA. Department of Environmental Science, Policy and Management, University of California, Berkeley, California, USA. Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas, USA. Baseline Environmental Consulting, Emeryville, California, USA. Department of Biological and Chemical Engineering, Aarhus University, Aarhus, Denmark. Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA. Department of Chemistry, Colorado State University, Fort Collins, Colorado, USA. Department of Civil and Environmental Engineering, University of California, Berkeley, California, USA"
Journal Title:		Indoor Air
Year:		2021
Volume:		20210717
Issue:		6
Page Number:		2099 - 2117
DOI:		10.1111/ina.12906
ISSN/ISBN:		1600-0668 (Electronic) 0905-6947 (Linking)
Abstract:		"Quantifying speciated concentrations and emissions of volatile organic compounds (VOCs) is critical to understanding the processes that control indoor VOC dynamics, airborne chemistry, and human exposures. Here, we present source strength profiles from the HOMEChem study, quantifying speciated VOC emissions from scripted experiments (with multiple replicates) of cooking, cleaning, and human occupancy and from unperturbed baseline measurements of the building and its contents. Measurements using a proton transfer reaction time-of-flight mass spectrometer were combined with tracer-based determinations of air-change rates to enable mass-balance-based calculations of speciated, time-resolved VOC source strengths. The building and its contents were the dominant emission source into the house, with large emissions of acetic acid, methanol, and formic acid. Cooking emissions were greater than cleaning emissions and were dominated by ethanol. Bleach cleaning generated high emissions of chlorinated compounds, whereas natural product cleaning emitted predominantly terpenoids. Occupancy experiments showed large emissions of siloxanes from personal care products in the morning, with much lower emissions in the afternoon. From these results, VOC emissions were simulated for a hypothetical 24-h period, showing that emissions from the house and its contents make up nearly half of total indoor VOC emissions"
Keywords:		"*Air Pollutants/analysis *Air Pollution, Indoor/analysis Cooking Environmental Monitoring Humans *Volatile Organic Compounds/analysis cleaning occupancy personal care products proton transfer reaction residential emissions;"
Notes:		"MedlineArata, Caleb Misztal, Pawel K Tian, Yilin Lunderberg, David M Kristensen, Kasper Novoselac, Atila Vance, Marina E Farmer, Delphine K Nazaroff, William W Goldstein, Allen H eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2021/07/18 Indoor Air. 2021 Nov; 31(6):2099-2117. doi: 10.1111/ina.12906. Epub 2021 Jul 17"