Preliminary study on brominated dioxins/furans and hydroxylated/methoxylated PBDEs in Baltic cod (Gadus morhua) liver. Comparison to the levels of analogue chlorinated co-occurring pollutants

Mar Pollut Bull. 2015 Jul 15;96(1-2):165-75. doi: 10.1016/j.marpolbul.2015.05.032. Epub 2015 May 19.

Abstract

Low pg levels of PBDD/Fs in 0.8-38.9 pg g(-1) (fat) range (mean 14.2 pg g(-1)) observed in the tested cod liver samples were significantly lower than levels of their chlorinated analogues (25.1-95.9 range, 37.7 mean pg g(-1) fat). Brominated furans dominated the congener profile. Elevated levels of OH-/MeO-BDE were however observed with mean concentrations at 2769±1319 and 5441±2918 pg g(-1) (fat) respectively. The observed congener profiles with the predominance of 6-OH-BDE 47 and the relatively high proportion between the native and hydroxylated compounds indicate on natural origin of those compounds or at least presence of various exposure sources. A large fraction of studied samples did not comply with the currently standing EU regulations concerning PCBs and chlorinated dioxins (11%), especially as regards non-dioxin like PCBs (88%).

Keywords: Baltic cod; Brominated dioxins/furans; Hydroxylated; Methoxylated; PBDE; PCB.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Baltic States
  • Dioxins / analysis
  • Dioxins / metabolism*
  • Environmental Monitoring*
  • Furans / metabolism*
  • Gadus morhua / metabolism*
  • Halogenated Diphenyl Ethers / analysis
  • Halogenated Diphenyl Ethers / metabolism*
  • Halogenation
  • Hydroxylation
  • Liver / chemistry
  • Liver / metabolism
  • Polybrominated Biphenyls
  • Polychlorinated Biphenyls / analysis
  • Polychlorinated Biphenyls / metabolism
  • Water Pollutants, Chemical / metabolism*

Substances

  • 6-OH-BDE-47
  • Dioxins
  • Furans
  • Halogenated Diphenyl Ethers
  • Polybrominated Biphenyls
  • Water Pollutants, Chemical
  • Polychlorinated Biphenyls