^a Australian National Health and Medical Research Council.

^b Canadian Health Protection Board.

^c As the trioxide.

^a Calculated from the PTWI; 70-kg human.

^b Total Diet Studies for 25-30-year-old males (FDA market basket program); Gunderson et al. (1988) except as otherwise noted.

^c Calculated from data in Hall et al. (1978); for the breakdown of average levels for species, see Tables 6-10-6-18, which detail the distributions of species-average concentrations.

^d EPA RfD = 4 × 10^-4 mg/kg/day = 28 µg/day.

^e Arsenic trioxide; not agreed upon but estimated.

^f Data in parentheses are FDA seafood measurements given in Gunderson et al. (1988).

^g Lowest value is methylmercury, highest total mercury.

^h From the older total diet data of Gartrell et al. (1985).

ⁱ A study coauthor believes this result may be too high because of contamination.