How do I set up this problem? I have always enjoyed eating tuna fish. Unfortunat

Question

How do I set up this problem?

I have always enjoyed eating tuna fish. Unfortunately, a study of the mercury content of canned tuna in 2010 found that chunk white tuna contains 0.6 ppm Hg and chunk light tuna contains 0.14 ppm. (S. L. Gerstenberger, A. Martinson, and J. L Kramer, Environ. Toxicol. Chem. 2010, 29, 237.) The U.S. Environmental Protection Agency recommends no more than 0.1 mu g Hg/kg body weight per day. I weigh 68 kg. How often may I eat a can containing 6 ounces (1 lb = 16 oz) of chunk white tuna so that I do not average more than 0.1 mu g Hg/kg body weight per day? If I switch to chunk light tuna, how often may I eat one can?

Explanation / Answer

if chunk white tune contains 0.6 ppm of Hg & if we able to take 6 ounce i..e 170 gm. to satisfy the required intake value

as chunk light tune contains 0.14 ppm of Hg then chunk white tuna contains (0.6/0.14) times more Hg contain i.e.= 4.2857 times

therefore if we able to take 170 gm of chunk white tune per day then if we switch over to chunk light tuna = (170*4.2857)= 728.57 gm

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