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3799248 
Journal Article 
Cadmium, lead, tin, total mercury, and methylmercury in canned tuna commercialised in São Paulo, Brazil 
de Paiva, EL; Morgano, MA; Milani, RF 
2017 
Yes 
Food Additives and Contaminants: Part B: Surveillance
ISSN: 1939-3210
EISSN: 1939-3229 
Taylor and Francis Ltd. 
10 
3 
1-7 
English 
28350272 
WOS:000403925400004 
The objective of this work was to determine levels of inorganic contaminants in 30 samples of five commercial brands of canned tuna, acquired on the local market in Campinas, São Paulo, Brazil, in the year of 2015. Total mercury and methylmercury (MeHg+) were determined by atomic absorption with thermal decomposition and amalgamation; and cadmium, lead, and tin were determined by inductively coupled plasma optical emission spectrometry. Results indicated that 20% of the tuna samples surpassed limits determined by the Brazilian and European Commission legislation for cadmium; for lead, the maximum value found was 59 µg kg(-1) and tin was not detected in any samples. The maximum values found for total Hg and MeHg+ were 261 and 258 µg kg(-1), respectively. As from the results obtained, it was estimated that the consumption of four cans per week (540 g) of tuna canned in water could surpass the provisional tolerable monthly intake for MeHg(+) by 100%. 
cadmium; canned tuna; estimate of ingestion; lead; mercury; methylmercury; risk of exposure; tin 
• Methylmercury
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