DDT and HCH in Liver Fat of Cormorants

摘要: Eighty cormorants from the area of Ostroda and Mrągowo were used for this study. The analyses carried out between 1993-1996. Each year 10 two-year-old birds shot (5 females 5 males) in two nesting grounds. On average, amount concentrated DDT cormorant liver fat was 4.914 mg/kg y-HCH 0.039 wet mass. average subsequent years varied ranged 2.515 to 7.252 mg/kg; however, differences statistically insignificant. accumulated higher levels than males, on up 8.796 mg/kg. amounts both groups different appeared be Liver concentrations γ -HCH observed period most frequently showed tendency increase, level 0.012 1993 0.106 1995. This value decreased 1996 0.003 Higher γ-HCH recorded originating form area, excluding individuals It shown that males their livers (years 1993, 1994 1996). presented study shows continuous threat analyzed xenobiotic agents water fowl need monitoring respect intoxication by HCH.