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 mg Hg/kg body weight per day. I weigh 68 kg. How often may I eat a can containing 6 ounces (1 lb 5 16 oz) of chunk white tuna so that I do not average more than 0.1 mg Hg/kg body weight per day? If I switch to chunk light tuna, how often may I eat one can?

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Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.