Effect of Deep-Frying Fish on Risk from Mercury
2003
The U.S. Environmental Protection Agency (EPA) and many states have issued advisories to limit or avoid the consumption of certain fish or fish from certain waters, particularly by pregnant women and young children or even women of childbearing age. Typically, risk is calculated by multiplying contaminant concentrations in fish tissue, frequency of meals, and meal size, compared to some criterion, usually the U.S. EPA reference dose (RfD). Site-specific data on mercury concentrations, meal size, and consumption frequency by fishermen were used to determine how frying fish affected risk estimates. In consumption studies fishermen typically estimate the size of portions as they appear on the plate (i.e., cooked), yet assessors calculate risk based on contaminant levels in uncooked fish. Largemouth bass (Micropterus salmoides, n = 39) were collected from the contaminated L Lake on the Savannah River Site, South Carolina. Fillets from the opposite sides of the same fish were divided and randomly assigned to a...
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