日本全国の淡水域に生息するギンブナ<I>(Carassius auratus (gibelio) langsdorfii )</I> 中のヘキサブロモシクロドデカン蓄積量調査 -濃度レベル,地域分布及び産卵期の卵への移行-

書誌事項

タイトル別名
  • Nationwide Study of Hexabromocyclododecanes in Crucian Carp <I>(Carassius auratus (gibelio) langsdorfii )</I> in Japan: Accumulation Levels, Spatial Distributions and Maternal Transfer
  • 日本全国の淡水域に生息するギンブナ(Carassius auratus (gibelio) langsdorfii)中のヘキサブロモシクロドデカン蓄積量調査 : 濃度レベル,地域分布及び産卵期の卵への移行
  • ニホン ゼンコク ノ タンスイイキ ニ セイソク スル ギンブナ(Carassius auratus (gibelio) langsdorfii)ナカ ノ ヘキサブロモシクロドデカン チクセキリョウ チョウサ : ノウド レベル,チイキ ブンプ オヨビ サンランキ ノ タマゴ エ ノ イコウ
  • Nationwide Study of Hexabromocyclododecanes in Crucian Carp (Carassius auratus (gibelio) langsdorfii ) in Japan: Accumulation Levels, Spatial Distributions and Maternal Transfer

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抄録

Hexabromocyclododecanes (HBCDs), widely used as additive brominated flame retardants, were determined in muscle of crucian carp (Carassius auratus (gibelio) langsdorfii) taken from 14 freshwater areas throughout Japan during 2003-2005; these sampling sites comprised 10 rivers and 4 ponds and were categorized into 4 groups based on local circumstances; large cities, small cities, agricultural areas and remote areas. HBCDs were detected in all samples analyzed, and total HBCDs ranged from 0.068 to 150 (average: 12, median: 0.37) ng/g wet wt. and 5.0 to 15000 (average: 1200, median: 29) ng/g lipid wt. The higher levels of HBCDs were found in urban areas. α -HBCD was the predominant isomer of HBCDs except for 5 rivers in urban areas where γ -HBCD was abundant. Minor isomers of technical HBCD, δ - and ε -HBCD were not found. To estimate maternal transfer rates of HBCDs, samples (male and female) were taken at the Murasaki River in the spawning season and analyzed their muscles and eggs. Maternal transfer rates of α -, β - and γ -HBCD were 11, 20 and 14%, respectively, which were slightly lower than those of dioxins and organochlorine pesticides.

収録刊行物

  • 環境化学

    環境化学 22 (1), 25-32, 2012

    一般社団法人 日本環境化学会

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