カワウ卵におけるダイオキシン類(PCDD/Fs, Co-PCBs)レベルと地域比較  [in Japanese] Comparison of Residue Levels of Polychlorinated Dibenzo-p-dioxins,Polychlorinated Dibenzofurans and Coplanar PCBs in Eggs of Common Cormorants, Phalacrocorax carbo Collected from Two Colonies of Japan  [in Japanese]

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Author(s)

    • 井関 直政 ISEKI Naomasa
    • 横浜国立大学大学院環境情報研究院 Graduate School of Environment and Information Sciences, Yokohama National University
    • 益永 茂樹 MASUNAGA Shigeki
    • 横浜国立大学大学院環境情報研究院 Graduate School of Environment and Information Sciences, Yokohama National University
    • 中西 準子 NAKANISHI Junko
    • 横浜国立大学大学院環境情報研究院 Graduate School of Environment and Information Sciences, Yokohama National University

Abstract

Polychlorinated dibenzo-<i>p</i>-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and coplanar PCBs (Co-PCBs) concentrations in cormorant eggs collected from two colonies in Japan were compared. Among PCDD/Fs, the 2,3,7,8-substituted congeners dominated approximately about 90% of the total concentrations in both colonies. Concentrations of PCDD/Fs found in eggs collected from Tokyo area (average concentration=1900pg·g<sup>-1</sup> fat) were significantly greater than the eggs from Aomori (1000pg·g<sup>-1</sup> fat). PCDFs were found at higher level in eggs from Tokyo. In addition, Co-PCBs in egg from Tokyo were also higher (9300ng·g<sup>-1</sup> fat) than in eggs from Aomori (2800ng·g<sup>-1</sup> fat). Besides, toxic equivalents (TEQ) of PCDD/Fs and Co-PCBs in eggs were higher by 2.1 fold at Tokyo (3600pgTEQ·g<sup>-1</sup> fat) than Aomori (1700pgTEQ·g<sup>-1</sup> fat). The main contributors to the toxicity were 1,2,3,7,8-PeCDD (8, 15%), 2,3,4,7,8-PeCDF (14, 11%), CB81 (15, 11%), CB77 (17, 14%), CB126 (36, 39%) in both locations (Tokyo and Aomori), respectively.

Journal

  • Journal of Japan Society on Water Environment

    Journal of Japan Society on Water Environment 24(7), 447-453, 2001-07-10

    Japan Society on Water Environment

References:  24

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008005206
  • NII NACSIS-CAT ID (NCID)
    AN10372439
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09168958
  • NDL Article ID
    5839405
  • NDL Source Classification
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL Call No.
    Z16-1045
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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