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http://dx.doi.org/10.5668/JEHS.2022.48.2.75

Exposure Assessment of Phthalates from House Dust and Organic Films in the Indoor Environment  

Joen, Jeong-In (Department of Nano & Biological Engineering, Seokyeong University)
Lee, Hye-Won (Institute of Risk Assessment, Seokyeong University)
Lee, Seung-Hyun (Department of Environmental & Chemical Engineering, Seokyeong University)
Lee, Jeong-Il (Climate Change Action Center, Korea Testing & Research Institute)
Lee, Cheol-Min (Department of Nano Chemical & Biological Engineering, Seokyeong University)
Publication Information
Journal of Environmental Health Sciences / v.48, no.2, 2022 , pp. 75-85 More about this Journal
Abstract
Background: Various types of semi-volatile organic compounds (SVOCs) exist in the public's living environment. They occur in different forms in terms of their physical and chemical properties and partition coefficients. As a consequence, indoor exposure to SVOCs occurs via various routes, including inhalation of air and airborne particles, skin contact, and dust intake. Objectives: To propose a method for assessing human exposure to the SVOCs occurring in the air of an indoor environment, the concentrations of SVOCs in house dust and organic films measured in a real residential environment were estimated in terms of gas-phase concentration using the partition coefficient. Assessment of inhalation exposure to SVOCs was performed using this method. Methods: Phthalates were collected from samples of house dust and organic films from 110 households in a real residential environment. To perform an exposures assessment of the phthalates present in organic films, gas-phase concentration was calculated using the partition coefficient. The airborne gas-phase concentrations of phthalates from the house dust and organic films were estimated and exposure assessment was performed based on the assumption of inhalation exposure from air. Results: As a result of the exposure assessment for gas-phase phthalates from house dust and organic films, preschool children showed the highest level of inhalation of phthalates, followed by school children, adults, and adolescents. Conclusions: This study includes the limitation of not considering different SVOCs exposure pathways in the health impact assessment, including those of phthalates in the indoor living environment. However, this study has the significance of performing exposure assessment based on exposure to SVOCs present in indoor air that originated from organic films in the indoor residential environment. Therefore, the results of this study should be useful as basic data for exposure and health risk assessments of SVOCs associated with organic films in the indoor environment.
Keywords
Semi-volatile organic compounds; organic films; house dust; exposure assessment;
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