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Distribution and fate of polybrominated diphenyl ethers in indoor environments of elementary schools SCIE SCOPUS

Title
Distribution and fate of polybrominated diphenyl ethers in indoor environments of elementary schools
Authors
Wu, QBaek, SYFang, MChang, YS
Date Issued
2010-06
Publisher
"WILEY-BLACKWELL PUBLISHING, INC"
Abstract
P>Polybrominated diphenyl ethers (PBDEs) are considered harmful to human health because of their toxicities and persistence in environments. In the current study, the distribution and fate of PBDEs in classrooms and computer rooms in 17 elementary schools in South Korea have been described. Eight congeners (brominated diphenyl ether-28, -47, -99, -100, -153, -154, -183, and -209) in air, floor dust, and product surface dust were measured. While Sigma(8)PBDEs in the air in classrooms showed considerable variations (0.659-1600 pg/m3, arithmetic mean +/- s.d.: 377 +/- 441 pg/m3), those in computer rooms were somewhat similar (134-220 pg/m3, arithmetic mean +/- s.d.: 169 +/- 40 pg/m3). Sigma(8)PBDEs in floor dust varied over a wide range, from 453 to 45,700 ng/g, for all rooms. Based on congener patterns, two groups were created - CL-1 that is dominated by high-brominated congeners and CL-2 primarily comprising low-brominated congeners - for both air and floor dust of classrooms. Surface dust had low concentrations, ranged from ND to 181, from ND to 128, and from ND to 256 pg/cm2 for desk/chair sets, lockers, and playing tools, respectively. Pearson correlation coefficients were calculated individually for air, floor dust, and surface dust. The results indicate that both surface dust and floor dust may act as a secondary source of PBDEs in indoor environments after emission from facilities. Practical Implications Children have been estimated to have a higher potential exposure to PBDEs than adults. Since children spend most of their day time at school, PBDE distributions in school environments should be a matter of great concern.
Keywords
Polybrominated diphenyl ethers; School; Indoor air; Floor dust; Surface dust; BROMINATED FLAME RETARDANTS; IN-HOUSE DUST; HUMAN EXPOSURE; UNITED-KINGDOM; INHALATION EXPOSURE; OUTDOOR AIR; PBDES; CANADA; OTTAWA; CELLS
URI
https://oasis.postech.ac.kr/handle/2014.oak/25407
DOI
10.1111/J.1600-0668.2010.00652.X
ISSN
0905-6947
Article Type
Article
Citation
INDOOR AIR, vol. 20, no. 3, page. 263 - 270, 2010-06
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장윤석CHANG, YOON-SEOK
Div of Environmental Science & Enginrg
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