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Concentrations of Formic Acid, Acetic Acid, and Ammonia in Newly Constructed Houses.


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 ?g m-3 (outdoor air) for formic acid; 166 (living room), 151 (bedroom), and 51 ?g m-3 (outdoor air) for acetic acid; and 73 (living room), 76 (bedroom), and 21 ?g 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).

SUBMITTER: Suzuki N 

PROVIDER: S-EPMC7143630 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Concentrations of Formic Acid, Acetic Acid, and Ammonia in Newly Constructed Houses.

Suzuki Norimichi N   Nakaoka Hiroko H   Eguchi Akifumi A   Hanazato Masamichi M   Nakayama Yoshitake Y   Tsumura Kayo K   Takaguchi Kohki K   Takaya Kazunari K   Todaka Emiko E   Mori Chisato C  

International journal of environmental research and public health 20200316 6


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 μg m<sup>-3</sup> (outdoor air) for formic acid; 166 (living room), 151 (bedroom  ...[more]

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