What is the limit of organomercury in fish?
The Food and Drug Administration (FDA) has set a maximum permissible level of 1 µg ml-1 (ppm) of methylmercury in seafood. The Environmental Protection Agency (EPA) and FDA have recommended that pregnant women, nursing mothers and young children avoid consumption of fish such as tuna and swordfish which are known to contain relatively high concentrations of methyl mercury.
