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PRAĆENJE ONEČIŠĆENJA MESA I RIBE KLORIRANIM UGLJIKOVODICIMA U REPUBLICI HRVATSKOJ
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Dubravka Kipčić,1
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Jelena Vukušić
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Blaženka Šebečić 2
1 Hrvatski zavod za javno zdravstvo, Rockefellerova 7,
10000 Zagreb
2 Farmaceutsko-biokemijski fakultet, Zagreb
SUMMARY
Between 1992 and 1996, 466 samples of fatty tissues from cattle, pigs, poultry and fish were analysed for chlorinated hydrocarbons.
Of the compounds involved, there were hexachlorbenzene (HCB), alfa-hexachlorocyclohexane (HCH), lindane, DDT and metabolites, and total polychlorinated biphenyls. Gas liquid chromatography was the method used. Samples were divided into two groups, one being Croatia’s meat imports, the other farm meats from the northern Croatia and fish from the Adriatic Sea.
Levels of contamination with the compounds studied were considerably lower in domestic than imported meats. The differences were most noticeable in lindane and DDT levels in beef, and in that of DDT in pork. There was an average lindane level in domestic beef of 0.004 mg/kg, this being 0.020 mg/kg in imported beef. DDT averages were 0.013 mg/kg in domestic and 0.059 mg/kg in imported beef. While the pork of domestic origin had an average of 0.014 mg/kg DDT, this was 0.041 mg/kg in the imported pork. Differences were significant also for lindane in poultry, the average level was 0.012 mg/kg in domestic and 0.034 mg/kg in imported poultry. For HCB and alpha-HCH, there was a statistically significant difference in beef. In domestic samples there was an average level of 0.001 mg/kg of HCB and 0.001 mg/kg of alpha-HCH; however, imported beef had an a verage of 0.004mg/kg HCB and 0.002 mg/kg of alpha-HCH. For HCB difference was also significant in poultry, with domestic and imported poultry displaying respective averages of 0.001 mg/kg and 0.003 mg/kg.
As regards the contamination of fish with polychlorinated biphenyls, this was considerably higher in fish of domestic origin (average level of 0.046 mg/kg) than in the imported fish (average level of 0.006 mg/kg). Conversely, the contamination of fish with chlorinated pesticides was similar in both sample groups.
No single sample of meat showed chlorinated hydrocarbon levels above their maximum allowances. However, this limit was exceeded in 1 sample of domestic and imported fish each.
Meat and fish of domestic origin display a trend of noticeable decline in contamination with chlorinated hydrocarbons compared with the meat and fish of the same origin and the position of some 10 years ago analysed in the same laboratory.
A comparison with imported meat allows of the conclusion that the domestic meats’ chlorinated hydrocarbon contamination levels are more than satisfactory. Although the imported meat complies with our current food safety regulations, its contamination with the above compounds is significantly higher than in our meats. This, however, is not true for fish which, in view of the degree of the limited openness of our sea, its size and warmth resembles the imported, mostly ocean, fish in terms of pollution levels.
Finally, the intake of chlorinated hydrocarbons via domestic meat and.004 mg/kg of HCB and 0.002 mg/kg of alpha-HCH. For fish is leveled with that in the highly developed European countries.
Key words: chlorinated pesticides,fatty tissues
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Summary
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