Title: | "Oxygenated VOCs, aqueous chemistry, and potential impacts on residential indoor air composition" |
Author(s): | Duncan SM; Sexton KG; Turpin BJ; |
Address: | "Rutgers University, New Brunswick, NJ, USA. University of North Carolina, Chapel Hill, NC, USA" |
ISSN/ISBN: | 1600-0668 (Electronic) 0905-6947 (Print) 0905-6947 (Linking) |
Abstract: | "Dampness affects a substantial percentage of homes and is associated with increased risk of respiratory ailments; yet, the effects of dampness on indoor chemistry are largely unknown. We hypothesize that the presence of water-soluble gases and their aqueous processing alters the chemical composition of indoor air and thereby affects inhalation and dermal exposures in damp homes. Herein, we use the existing literature and new measurements to examine the plausibility of this hypothesis, summarize existing evidence, and identify key knowledge gaps. While measurements of indoor volatile organic compounds (VOCs) are abundant, measurements of water-soluble organic gases (WSOGs) are not. We found that concentrations of total WSOGs were, on average, 15 times higher inside homes than immediately outside (N = 13). We provide insights into WSOG compounds likely to be present indoors using peer-reviewed literature and insights from atmospheric chemistry. Finally, we discuss types of aqueous chemistry that may occur on indoor surfaces and speculate how this chemistry could affect indoor exposures. Liquid water quantities, identities of water-soluble compounds, the dominant chemistry, and fate of aqueous products are poorly understood. These limitations hamper our ability to determine the effects of aqueous indoor chemistry on dermal and inhalation exposures in damp homes" |
Keywords: | "*Air Pollution, Indoor Gases/*analysis Housing Humidity Volatile Organic Compounds/*chemistry Water/*chemistry Ovoc aqueous chemistry damp homes human exposure interfacial chemistry water-soluble organic compounds;" |
Notes: | "MedlineDuncan, S M Sexton, K G Turpin, B J eng P30 ES010126/ES/NIEHS NIH HHS/ T32 ES019854/ES/NIEHS NIH HHS/ England 2017/08/24 Indoor Air. 2018 Jan; 28(1):198-212. doi: 10.1111/ina.12422. Epub 2017 Sep 20" |