A man often consumed sushi $$twice a day$.$ Let$$s assume he

consumed one tuna sushi roll every day over the period of one year $($sushi$-$grade tuna

contains $0\mathrm{.}69$ mg$/$kg mercury$)$ and that a typical sushi roll contains $2$ ounces of tuna. The

RfD for methylmercury is $0\mathrm{.}0001$ mg$/$kg$-$day. Determine whether this scenario poses a noncarcinogenic health risk.