The domestic and international dimensions of methylmercury contamination in Tuna: An analysis of the efficacy of the fish advisory standards of two federal agencies

Abstract

Purpose – This chapter examines the literature on the dangers of methylmercury exposure and the 2004 Food and Drug Administration/Environmental Protection Agency (FDA/EPA) Advisory on fish consumption. It analyzes the extent to which particular groups of people living in the United States are vulnerable to toxic food consumption and the extent to which the advisories put them at risk.

Design/methodology/approach – The authors conducted a review of the literature related to methylmercury. In addition, they used archival information from government documents. They also analyzed the fish advisories and educational information posted on websites of each state's Women, Infants, and Children (WIC) program.

Findings – Methylmercury is a potent neurotoxin that can seriously affect fetal brain growth and development. Although the federal government promotes canned tuna as an inexpensive, beneficial protein source, recent reports indicate that a large proportion of America's favorite fish contains unsafe levels of methylmercury. Populations at risk for overconsumption include minorities and low-income groups, particularly recipients of federal subsidies such as WIC.

Practical implications – The FDA uses a “nuanced” message to offer consumers information about both the risks and benefits of eating fish. However, the advisory is not widely distributed and information on mercury levels in fish is not available at the point of sale. Minority populations are less likely to be aware of fish advisories and to change consumption habits. Thus, the target population remains largely uninformed and possibly misled about the risks and benefits of eating canned tuna.

Social implications – Based on new data, the federal government should recognize mercury as a hazard, update its consumption guidelines, and better monitor the mercury content in canned tuna. Outreach and educational programs should target minority and at-risk groups. The authors recommend an alternative precautionary approach in dealing with the health threats posed by methylmercury in tuna fish.

Citation

Pallo, B. and Barken, M. (2010), "The domestic and international dimensions of methylmercury contamination in Tuna: An analysis of the efficacy of the fish advisory standards of two federal agencies", Taylor, D.E. (Ed.) Environment and Social Justice: An International Perspective (Research in Social Problems and Public Policy, Vol. 18), Emerald Group Publishing Limited, Leeds, pp. 179-210. https://doi.org/10.1108/S0196-1152(2010)0000018008