PCDD/Fs and PCBs in Baltic herring during the 1990s.
Baltic herring samples caught from the Baltic Sea during the spring periods of 1993-1994 and 1999 were analysed for polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF), and polychlorinated biphenyls (PCB). For analyses, 1570 individual herring were combined to 120 pools. Correlations between concentrations of congeners 1,2,3,7,8-PeCDD, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, and 2,3,4,6,7,8-HxCDF, and age of herring were the strongest (r>0.8) followed by correlations between PCB congeners PCB 105, 118, 126, 156, 169 and 180 (r>0.7), and age of herring. Due to higher fat percentage in herring in the Gulf of Bothnia the concentrations of PCDD/Fs and PCBs on fresh weight (fw) basis were higher than in herring in the Gulf of Finland. The concentrations of WHO(PCDD/F)-TEQs ranged from 1 to 27 pg/g fw, depending on the age and catchment area of herring, and concentrations of WHO(PCB)-TEQs reached 32 pg/g fw. Between the two studied time points no clear downward trend in concentrations was observed.
Kiviranta
Hannu
H
Department of Environmental Health, National Public Health Institute, P.O. Box 95, FIN-70701 Kuopio, Finland. hannu.kiviranta@ktl.fi
Vartiainen
Terttu
T
Parmanne
Raimo
R
Hallikainen
Anja
A
Koistinen
Jaana
J
D000273:Adipose Tissue / Q000378:metabolism; D000375:Aging / Q000378:metabolism*; D000818:Animals; D001572:Benzofurans / Q000493:pharmacokinetics; D000072338:Dibenzofurans, Polychlorinated; D005387:Finland; D005399:Fishes / Q000378:metabolism*; D009792:Oceans and Seas; D011078:Polychlorinated Biphenyls / Q000493:pharmacokinetics; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000493:pharmacokinetics; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics*
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls