| Title: | "Occurrence, exposure and risk assessment of semi-volatile organic compounds in Chinese homes" |
| Author(s): | Dong X; Yang C; Zhang R; Tao S; Han W; Wang Y; Xie Q; Chen J; Li X; |
| Address: | "Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China. Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China. Electronic address: lixuehua@dlut.edu.cn" |
| DOI: | 10.1016/j.envpol.2022.119550 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "Indoor semi-volatile organic compounds (SVOCs) can have a significant impact on human health. Previous studies involved the detection of limited classes of indoor SVOCs in different regions of China. However, overall indoor pollution profiles and the associated health risks via multiple exposure pathways remain unclear. High-throughput screening of SVOCs would help clarify the overall indoor pollution status and identify high-risk pollutants. We collected indoor air and dust samples from 35 Chinese homes and investigated the occurrence of a wide range of SVOCs. Ninety-seven SVOCs including phthalate esters (PAEs), polycyclic aromatic hydrocarbons (PAHs), organophosphate esters, alcohols, fatty acids, phenols, etc., were detected in the air (total concentrations: 0.13-48 mug/m(3); median: 3.4 mug/m(3)) and dust (total concentrations: 120-1500 mug/g; median: 490 mug/g) samples. PAEs were the most abundant, accounting for 55.3 +/- 28.6% and 43.4 +/- 16.9% of the total SVOC concentrations in the air and dust samples respectively. Human exposure and health risks of 34 SVOCs with detection frequencies >10% were assessed based on inhalation, ingestion and dermal absorption of SVOCs from air and dust by infants and adults. In the case of indoor SVOCs with log K(oa) < 9, inhalation and dermal contact with air was >90% for adults and >69% for infants. The following five SVOCs in air samples posed significant non-carcinogenic risks and are listed based on their decreasing risk level: dibutyl phthalate > phenanthrene > stearic acid > methyl palmitate > lauryl alcohol. Four PAHs with 2-4 rings posed potential carcinogenic risks, with phenanthrene exceeding the acceptable risk level of 10(-4). The high risks posed by SVOCs were due to inhalation exposure. Therefore, keeping the air concentrations of SVOCs, especially that of PAEs and PAHs under check would greatly benefit human health in indoor environments" |
| Keywords: | "Adult *Air Pollutants/analysis *Air Pollution, Indoor/analysis Dust/analysis Esters Humans Infant *Phenanthrenes *Polycyclic Aromatic Hydrocarbons/analysis Risk Assessment *Volatile Organic Compounds/analysis Dermal absorption Health risk High-throughput;" |
| Notes: | "MedlineDong, Xianbao Yang, Chen Zhang, Ruohan Tao, Siru Han, Wenjing Wang, Yan Xie, Qing Chen, Jingwen Li, Xuehua eng England 2022/06/01 Environ Pollut. 2022 Aug 15; 307:119550. doi: 10.1016/j.envpol.2022.119550. Epub 2022 May 27" |
