Maximum acceptable limits (mg kg"') of some heavy metals. Metal Concentration Referance Cd 0,04 EPA (1995) (safety level in fish tissue) 5 CEFAS (1997); BOE (1991) 10 NHMRC (1987); EEC (1979) Cr 8 EEC (1979) Cu 100 MAFF (1956); BOE (1991) 350 NHMRC (1987) Zn 250 Ministry of Food (1953) 750 NHMRC (1987) Pb 25 BOE (1991) 50 Great Britain-Parliament (1979
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