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Int J Environ Res Public Health

Title:		"Concentrations of Formic Acid, Acetic Acid, and Ammonia in Newly Constructed Houses"
Author(s):		Suzuki N; Nakaoka H; Eguchi A; Hanazato M; Nakayama Y; Tsumura K; Takaguchi K; Takaya K; Todaka E; Mori C;
Address:		"Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan. National Institute of Occupational Safety and Health, 6-21-1 Nagao, Tama-ku, Kawasaki 214-8585, Japan. Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chuo-ku Inohana 1-8-1, Chiba 263-8522, Japan"
Journal Title:		Int J Environ Res Public Health
Year:		2020
Volume:		20200316
Issue:		6
Page Number:		-
DOI:		10.3390/ijerph17061940
ISSN/ISBN:		1660-4601 (Electronic) 1661-7827 (Print) 1660-4601 (Linking)
Abstract:		"Herein, the concentrations of formic acid, acetic acid, and ammonia in samples of indoor air for 47 new houses were measured two weeks after completion. The houses were fabricated with light-gauge steel structures. The measurements were performed in living rooms and bedrooms without furniture and outdoors. Air samples were analyzed using ion chromatography. The mean values were 28 (living room), 30 (bedroom), and 20 mug m(-3) (outdoor air) for formic acid; 166 (living room), 151 (bedroom), and 51 mug m(-3) (outdoor air) for acetic acid; and 73 (living room), 76 (bedroom), and 21 mug m(-3) (outdoor air) for ammonia. The total values of the three substances accounted for 39.4-40.7% of the sum of chemical compound values. The analyzed compounds were indicated by two principal components (PC), PC1 (30.1%) and PC2 (9%), with 39.1% total variance. Formic acid, acetic acid, and ammonia were positively aligned with PC1 and negatively aligned with PC2. Factors such as room temperature, aldehydes, and phthalates were positively aligned with PC1 and negatively aligned with PC2. Furthermore, concentrations of formic acid, acetic acid, and ammonia were significantly and positively correlated with room temperature (p < 0.05)"
Keywords:		"Acetic Acid *Air Pollutants *Air Pollution, Indoor *Ammonia Environmental Monitoring Formates Housing ammonia formic acid indoor air quality newly built houses sum of volatile organic compounds;"
Notes:		"MedlineSuzuki, Norimichi Nakaoka, Hiroko Eguchi, Akifumi Hanazato, Masamichi Nakayama, Yoshitake Tsumura, Kayo Takaguchi, Kohki Takaya, Kazunari Todaka, Emiko Mori, Chisato eng Research Support, Non-U.S. Gov't Switzerland 2020/03/20 Int J Environ Res Public Health. 2020 Mar 16; 17(6):1940. doi: 10.3390/ijerph17061940"