HNSC 1200 Chapter Notes - Chapter 4: Polybrominated Biphenyl, Polychlorinated Biphenyl, Orange Roughy
13 May 2017
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Document Summary
The cfia regularly tests domestic and imported commercial fish and shellfish, both freshwater and marine, in order to enforce the mercury guideline of 0. 5-1. 0 parts per million (ppm) for total mercury in domestically produced and imported fish. The recommendation is to consume a variety of fish, as this minimizes your exposure to any particular toxin that may accumulate in a particular fish species. Health canada recommends consumers limit their consumption of shark, swordfish, fresh or frozen tuna, orange roughy, escolar and marlin to a maximum of no more than 150g per week (excluding canned light tuna). For children, pregnant women and women of childbearing age, consumption of these fish is more restricted. In addition, the immature or developing organs and systems of children are less able to get rid of mercury. There is also less ability to repair the damage caused by mercury due to their cellular repair mechanisms not being fully developed.
