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Marine fish food in the United States and methylmercury risk.

Authors
  • Chen, David Y
  • Williams, Vereda J
Type
Published Article
Journal
International journal of environmental health research
Publication Date
Apr 01, 2009
Volume
19
Issue
2
Pages
109–124
Identifiers
DOI: 10.1080/09603120802415800
PMID: 19370462
Source
Medline
License
Unknown

Abstract

This paper takes a market-oriented approach to study potential exposure of methylmercury (MeHg) risk to human health from US domestic commercial ocean fish landings (consumption). Information is assembled on MeHg concentration levels of marine species. Landings were examined for 1995-2005. Confined to this seafood source, trends of landings indicating high concentration species (above 0.7 ppm, tilefish, shark, king mackerel and swordfish) were significantly decreased. People bought stable amount of medium MeHg level species (0.3-0.7 ppm, grouper, Spanish mackerel) but less amount of low concentration level species (below 0.3 ppm, catfish, tuna and southern flounder). Based on estimated prices of species and quantities taken it is found that consumers, one crucial link of the entire MeHg risk assessment process, had exhibited awareness of potential MeHg risk in fish and demonstrated in household fish consumption. Information assembled in this paper is insufficient to draw further inference on specific population cohorts more susceptible to potential exposure of MeHg risk. This inquiry may be extended to imported fish in the US for comparison.

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