Description
| - The aim of the presented study was to assess heavy metal load of the brown bear (Ursus arctos) living in the central European Carpathians. Between 2002 and 2004, fifteen bears were examined to evaluate distribution of cadmium, lead, mercury and copper in animals' muscles (diaphragm), spleen, liver and kidney. The highest content of cadmium, lead and mercury was found in kidney (17.4 +/- 5.2 mg*kg-1, 1.16 +/- 0.39 mg*kg-1, 0.39 +/- 0.25 mg*kg-1), whereas the lowest content of the metals was observed in muscles (0.017+/- 0.009 mg*kg-1, 0.299 +/- 0.308 mg*kg-1, 0.013 +/- 0.011 mg*kg-1). Second leading concentration of cadmium, lead and mercury was proved in liver (0.83 +/- 0.24 mg*kg-1, 0.99 +/- 0.61mg*kg-1, 0.11 +/- 0.05 mg*kg-1). Copper distributions and concentrations in bear tissues were the following in descending order: liver (23.9 +/- 6.7 mg*kg-1), kidneys (9.0 +/- 3.3 mg*kg-1), muscles (1.9 +/- 1.6 mg*kg-1) and spleen (1.0 +/- 0.2 mg*kg-1). As compared with heavy metal load observed in bear
- The aim of the presented study was to assess heavy metal load of the brown bear (Ursus arctos) living in the central European Carpathians. Between 2002 and 2004, fifteen bears were examined to evaluate distribution of cadmium, lead, mercury and copper in animals' muscles (diaphragm), spleen, liver and kidney. The highest content of cadmium, lead and mercury was found in kidney (17.4 +/- 5.2 mg*kg-1, 1.16 +/- 0.39 mg*kg-1, 0.39 +/- 0.25 mg*kg-1), whereas the lowest content of the metals was observed in muscles (0.017+/- 0.009 mg*kg-1, 0.299 +/- 0.308 mg*kg-1, 0.013 +/- 0.011 mg*kg-1). Second leading concentration of cadmium, lead and mercury was proved in liver (0.83 +/- 0.24 mg*kg-1, 0.99 +/- 0.61mg*kg-1, 0.11 +/- 0.05 mg*kg-1). Copper distributions and concentrations in bear tissues were the following in descending order: liver (23.9 +/- 6.7 mg*kg-1), kidneys (9.0 +/- 3.3 mg*kg-1), muscles (1.9 +/- 1.6 mg*kg-1) and spleen (1.0 +/- 0.2 mg*kg-1). As compared with heavy metal load observed in bear (en)
- Cílem předkládané práce bylo zhodnotit zatížení medvěda hnědého (Ursus arctos) z centrálních Karpat těžkými kovy.V letech 2002-2004 bylo vyšetřeno 15 medvědů na obsah kadmia, olova, rtuti a mědi a byla vyhodnocena distribuce kovů do svaloviny (bránice), sleziny, jater a ledvin. Nejvyšší koncentrace kadmia, olova a rtuti byly v ledvinách (17,4 +/- 5,2 mg*kg-1, 1,16 +/- 0,39 mg*kg-1, 0,39 +/- 0,25 mg*kg-1), nejnižší ve svalovině (0,017+/- 0,009 mg*kg-1, 0,299 +/- 0,308 mg*kg-1, 0,013 +/- 0,011 mg*kg-1). Druhé nejvyšší koncentrace kadmia, olova a rtuti byly nalezeny játrech (0,83 +/- 0,24 mg*kg-1, 0,99 +/- 0,61mg*kg-1, 0,11 +/- 0,05 mg*kg-1). Distribuce mědi do tkání medvěda byla v sestupném pořadí koncentrace: játra (23,9+/- 6,7 mg*kg-1) , ledviny (9,0 +/- 3,3 mg*kg-1), svalovina (1,9 +/- 1,6 mg*kg-1) a slezina (1,0 +/- 0,2 mg*kg-1). Ve srovnání se zjištěnými koncentracemi těžkých kovů ve tkáních medvědů z období 1988-1990 byly koncentrace kadmia ve svalovině a játrech významně nižší (P < 0,01), u r (cs)
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