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Distribution and exposure assessment of phthalic acid esters (PAEs) in indoor dust of Shanghai / 上海预防医学
Article in Zh | WPRIM | ID: wpr-923969
Responsible library: WPRO
ABSTRACT
Objective To characterize the distribution and assess the exposure to phthalic acid esters (PAEs) in the indoor dust of Shanghai City. Methods Samples were collected from 33 sampling sites, including homes, hotels, offices and public places, in Shanghai in 2018, 2019, and 2020. The samples were pretreated by 100 sieves, extracted and concentrated, and then analyzed by gas chromatography-mass spectrometry in selected ion mode (SIM). Results Results on the characteristics of PAEs in indoor dust in different places showed that concentrations of PAEs were in a range of <0.01-2 464 mg·kg-1.The average concentration of 16 PAEs was 613 mg·kg-1. Bis(2-ethylhexyl) phthalate (DEHP), di-iso-butyl phthalate (DiBP), di-n-butyl phthalate (DBP) and di-n-octyl phthalate (DnOP) were the main components of PAEs in indoor dust, accounting for approximately 99.5% of 16 PAEs. The intake of DEHP, DBP, DEP and BBP was lower than the tolerable daily intake (TDI) and reference doses (RfD) set by EU CSTEE and U.S. EPA. Conclusion Average daily dose (ADD) via indoor dust is estimated, and the order of intake through different pathways is hand-oral intake>skin contact>respiratory inhalation. Exposure risk of PAEs in children is greater than that in adults.
Key words
Full text: 1 Index: WPRIM Type of study: Risk_factors_studies Language: Zh Journal: Shanghai Journal of Preventive Medicine Year: 2022 Type: Article
Full text: 1 Index: WPRIM Type of study: Risk_factors_studies Language: Zh Journal: Shanghai Journal of Preventive Medicine Year: 2022 Type: Article