Document Detail


Consumption of freshwater fish in Kahnawake: risks and benefits.
MedLine Citation:
PMID:  10092436     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Kahnawake is a Mohawk community located on the south shore of the Saint Lawrence River near Montreal. A comprehensive study was conducted in 1996-1997 to address the local concern regarding health risks of contaminant exposure associated with freshwater fish consumption. Forty-two participants, including most of the identified active fishermen (n=33), were interviewed. Walleye, perch, bullhead, and smallmouth bass were the species most consumed. Average daily intake of locally caught fish was 23 g/day. Nutrient and contaminant levels of locally collected fish were analyzed. Fish were good sources of protein, polyunsaturated fatty acids (particularly omega-3 fatty acids), calcium, zinc, and iron. Levels of cadmium, lead, arsenic, polychlorinated biphenyls (PCBs), and other chlorinated pesticides were at least 10 times lower than the guideline levels. Mercury levels of some predatory fish exceeded the guideline of 0.5 microgram/g. Average daily intakes of all contaminants were below the guideline levels by a factor of 10 except for mercury. Average mercury intake rate was about one-third that of the guideline level (200 micrograms/week). Contrary to residents' perception, Kahnawake fish were not particularly contaminated. In view of the nutritional as well as cultural benefits, fishing and fish consumption may be promoted.
Authors:
H M Chan; M Trifonopoulos; A Ing; O Receveur; E Johnson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental research     Volume:  80     ISSN:  0013-9351     ISO Abbreviation:  Environ. Res.     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-04-13     Completed Date:  1999-04-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0147621     Medline TA:  Environ Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S213-S222     Citation Subset:  IM    
Copyright Information:
Copyright 1999 Academic Press.
Affiliation:
School of Dietetics and Human Nutrition, McGill University, Ste-Anne-de-Bellevue, Quebec, H9X 3V9, Canada.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Animals
Environmental Pollutants / analysis*
Female
Fishes*
Food Contamination*
Humans
Indians, North American*
Male
Metals, Heavy / analysis*
Middle Aged
Nutritional Requirements
Public Health*
Quebec
Safety
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Metals, Heavy

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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