2010 Fiscal Year Final Research Report
Intake estimation of organophosphate flame retardants on school children
| Project/Area Number |
21710068
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Risk sciences of radiation/Chemicals
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| Research Institution | Saga University |
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Principal Investigator |
UENO Daisuke Saga University, 農学部, 講師 (60423604)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 有機リン系難燃剤 / PFRs / ダスト / 小学校 / シックハウス(シックスクール)症候群 / 摂取量 / 低減法 / ガスクロマトグラフィー質量分析計(GC / MS) |
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| Research Abstract |
In order to quantify oral intake of organophosphate flame retardants (PFRs), housedust samples collected from elementary school in Saga city, Japan were employed for chemical analysis. PFRs were detected from all the housedust samples analyzed. Among the PFRs detected, tris butoxyethyl phosphate (T(BxEt)P) was the predominate compound and concentration range was 3600-1900000ng/g dry weight. PFRs concentrations in housedust were compared between those from elementary school and private house. Significant higher concentrations were found in housedust samples from elementary school. Among the housedust samples from elementary school, the highest concentration of total PFRs was found in "school A". Percent contributions of individual compounds to total PFRs concentrations in housedust sample from school A showed higher contribution of (T(BxEt)P), and those were from 50-99%. It is known that (T(BxEt)P) has been used for the products of floor wax. Higher contribution of (T(BxEt)P) in housedust from elementary school would reflect the frequent use of floor wax containing this chemical. In order to evaluate the adverse effect of PFRs, intake amount of PFRs through housedust was estimated. By comparing to tolerable daily intake (TDI) of PFRs, intake amount of T(BxEt)P by children through housedust could be exceeded 19 times higher than TDI.
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[Journal Article] Spatial distribution of hexabromocyclododecanes (HBCDs), polybrominated diphenyl ethers (PBDEs) and organochlorines in bivalves from Japanese coastal waters.2010
Author(s)
Ueno, D., Isobe, T., Ramu, K., Tanabe, S., Alaee, M., Marvin, C., Inoue, K., Someya, T., Miyajima, T., Kodama, H., Nakata, H.
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Journal Title
Chemosphere 78
Pages: 1213-1219
Peer Reviewed
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[Presentation] 日本人母乳および脂肪組織中人工香料の蓄積現状と取り込み経路の推定2009
Author(s)
上野大介, 井上興一, 染谷孝, 龍田典子, 宮島徹, 兒玉宏樹, 市場正良, 国末達也, 尹浩信, 丸尾圭志, 中田晴彦
Organizer
第18回環境化学討論会
Place of Presentation
つくば
Year and Date
2009-06-09
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[Book] Interdisciplinary Studies on Environmental Chemistry-Environmental Research in Asia(Synthetic musk fragrances in human breast milk and adipose tissue from Japan)(Obayashi, Y., Isobe, T., Subramanian, A., Suzuki, S., Tanabe, S., ed.)(Tokyo)2009
Author(s)
Ueno, D., Moribe, M., Inoue, K., Someya, T., Ryuda, N., Ichiba, M., Miyajima, T., Kunisue, T., In, H., Maruo, K., Nakata, H.
Total Pages
247-252
Publisher
Terrapub
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[Book] Interdisciplinary Studies on Environmental Chemistry-Environmental Research in Asia(Bioaccumulation of Dioxins in the Benthic Fish from Hiroshima Bay)(Obayashi, Y., Isobe, T., Subramanian, A., Suzuki, S.and Tanabe, S., ed.)(Tokyo)2009
Author(s)
Tanaka, H., Kono, K., Ueno, D.
Total Pages
47-57
Publisher
Terrapub
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