Total mercury and methylmercury in tuna fish and sharks from the South Adriatic Sea

摘要: Total mercury and methylmercury concentrations were measured in tuna fish sharks from the South Adriatic Sea. The highest mean levels of total found Squalus acanthias (6.5 mg/kg w.w.). In other species notably lower (0.46 W.W. for Auxis rochei; 0.38 Prionacee glauca). Twenty-two percent rochei samples exceeded legal Italian limit (0.50 w.w.) as specified by European Commission Directive. No sample glauca 1 wet wt., while all this value. analytical data showed that was present mainly organometallic form with percentages between 69 100%. For examined, estimated weekly intake than Provisional Tolerable Weekly Intake (PTWI) recommended FAO/WHO Expert Committee on Food Additives.