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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chao, How-Ran Lin, Chun-Wen Chuang, Chun-Yu Hsu, Yi-Chyun Chuang, Kuo Pin Tayo, Lemmuel L. Gou, Yan-You Que, Danielle E. Shy, Cherng-Gueih Tsai, Chih-Chung |
| Description | Country affiliation: Taiwan Author Affiliation: Gou YY ( Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan.); Que DE ( School of Chemical Engineering, Chemistry, Biological Engineering and Material Science and Engineering, Mapúa Institute of Technology, Intramuros, Manila 1002, Philippines.); Chuang CY ( Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu City 300, Taiwan.); Chao HR ( Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan. Electronic address: hrchao@mail.npust.edu.tw.); Shy CG ( Department of Radiology, Pingtung Christian Hospital, Pingtung City, Pingtung 900, Taiwan.); Hsu YC ( Department of Environmental Engineering, Kun Shan University, Yung-Kang Dist., Tainan City 71003, Taiwan.); Lin CW ( Department of Child Care, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan.); Chuang KP ( Graduate Institute of Animal Vaccine Technology, College of Veterinary Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan.); Tsai CC ( Graduate Institute of Science Education and Environmental Education, National Kaohsiung Normal University, Yan-Chou District, Kaohsiung City 824, Taiwan.); Tayo LL ( School of Chemical Engineering, Chemistry, Biological Engineering and Material Science and Engineering, Mapúa Institute of Technology, Intramuros, Manila 1002, Philippines.) |
| Abstract | Elementary school classroom dust is an important source of exposure to polybrominated dibenzo-p-dioxins/furans and diphenyl ethers (PBDD/DF/DEs) for school-age children. Our goal is thus to investigate concentrations of PBDD/DF/DEs in elementary school classroom dust to further assess the impact on school-age children via ingestion. The dust from classrooms, including both normal (NR) and computer classrooms (CR), was collected from six urban and four rural schools. Fourteen PBDEs and twelve PBDD/Fs were measured using high-resolution gas-chromatography/high-resolution mass-spectrometry. The mean levels of Σ PBDEs in NR and CR dust from the urban classrooms were 370 and 2510ng/g and those whose dust from the rural classrooms were 464 and 1780ng/g. The means of ΣPBDD/Fs were 0.0401ng-WHO -TEQ/g (concentration: 4.72ng/g) in urban NR dust, 0.0636ng-WHO -TEQ/g (7.51ng/g) in urban CR dust, 0.0281ng-WHO TEQ/g (3.60ng/g) in rural NR dust, and 0.0474ng-WHO TEQ/g (6.28ng/g) in rural CR dust. The PBDEs pattern in NR dust was quite different from that in CR dust, but the PBDD/Fs patterns in NR and CR dust were similar. A linearly significant correlation coefficient (n=20, r=0.862, p<0.001) was found between ΣPBDEs and ΣPBDD/Fs in NR and CR dust, indicating that the PBDEs and PBDD/Fs in the dust may be from the same sources in the elementary school classrooms. This study assessed the risks (daily intake and cancer and non-cancer risks) of PBDEs and PBDD/Fs for the children from the classroom dust, and the calculated risk values did not exceed the related thresholds. With regard to the exposure scenarios for school-age children in an indoor environment, the results suggest that they might ingest more dust PBDD/DF/DEs in their homes than in the schools. In conclusion, the exposure of Taiwanese elementary school children to PBDD/DF/DEs via indoor dust was with a safe range based on our findings. |
| ISSN | 00489697 |
| Journal | Science of The Total Environment |
| Volume Number | 572 |
| e-ISSN | 18791026 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-12-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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