Table 3:

Maximum permissible limits or guideline limits for Cd, Cu and Zn concentrations (µg/g) for fish/shellfish set by different countries and agencies.
Guideline limits WB Cd Cu Zn
Permissible limits set by Malaysian Food Regulation [50] Wet 1.00 30.0 100
International Council for the Exploration of the Sea [51] for status: 'increased contamination' Dry 1.80 NA NA
Maximum permissible levels established by Brazilian Ministry of Health [52] Dry 5.00 150 250
Permissible limit set by Ministry of Public Health, Thailand [53] Dry NA 133 667
Food and Drug Administration of the United States [54] Dry 25.0 NA NA
Wet 3.70 NA NA
Australian Legal Requirements [55] Dry 10.0 350 750
Permissible limit set by the Hong Kong Environmental Protection Department [56] Wet 2.00 NA NA
FAO limits [20] Wet 2.0 10-30 40-100
Dry* 10.0 50-150 200-500

Note: WB: Weight Basis; *: Concentrations in wet weight have been converted into dry weight by multiplying by a factor of 5 [57]; NA: Not Available.