PL
Przebadano 12 gatunków mrożonych ryb na zawartość ołowiu, kadmu, niklu, cynku, miedzi i chromu. Zawartość metali (oprócz kadmu) była niższa od przewidywanych normami poziomów tych pierwiastków dla ryb.
EN
Concentrations of lead, cadmium, nickel, zinc, copper and chromium in chilled fresh-water and sea fish were determined by atomic absorption spectrometry (AAS). The following average values related to wet weight were found. For fresh-water fish: lead - from 0,111 mg/kg (burbot) to 0,144 mg/kg (bream); cadmium - from 0,016 mg/kg (carp) to 0,068 mg/kg (bream); nickel - from 0,126 mg/kg (carp) to 0,189 mg/kg (burbot); zinc - from 5,68 mg/kg (burbot) to 9,28 mg/kg (carp); copper - from 0,67 mg/kg (bream) to 0,83 mg/kg (carp); and chromium - from 0,413 mg/kg (burbot) to 0,570 mg/kg (carp). For sea fish: lead - from 0,112 mg/kg (mackerel) to 0,191 mg/kg (cod); cadmium - from 0,031 mg/kg (mackerel) to 0,136 mg/kg (Theragra chalcogramma L); nickel - from 0,136 mg/kg (herring) to 0,266 mg/kg (cod); zinc - from 3,80 mg/kg (Norway haddock) to 15,15 mg/kg (herring); copper - from 0,33 mg/kg (Norway haddock) to 1,35 mg/kg (herring); and chromium - from 0,198 mg/kg (mackerel) to 0,435 mg/kg (flounder). Our results are comparable with the literature data. In 75% of all fish samples, cadmium contents were above the limit admissible in Poland. Lead, zinc and copper levels in the fish samples were within the limits admissible in Poland.