Document Detail

Estimated dietary exposure of Canadians to perchlorate through the consumption of fruits and vegetables available in Ottawa markets.
MedLine Citation:
PMID:  19743859     Owner:  NLM     Status:  MEDLINE    
There has been increasing concern over the contamination of drinking water and food with perchlorate. Studies have reported perchlorate in a variety of foods, including lettuce, milk, fruits, and juices. In this study, 150 food samples were analyzed by ion chromatography tandem mass spectrometry (IC-MS/MS) to determine the concentrations of perchlorate in imported and domestic fruits and vegetables available from retail outlets in Ottawa, Canada. Perchlorate was found in most of the tested food types with concentrations appearing to vary by commodity and country of origin. Levels ranged from nondetectable to 536 microg/kg, with Guatemalan cantaloupes (156 +/- 232 microg/kg), United States spinach (133 +/- 24.9 microg/kg), Chilean green grapes (45.5 +/- 13.3 microg/kg), and United States Romaine lettuce (29.1 +/- 10.5 microg/kg) having the highest concentrations. Dietary exposure to perchlorate from analyzed fruits and vegetables was estimated to be approximately 36.6 and 41.1 ng/kg bw/day for toddlers (1-4 yrs) and children (5-11yrs), respectively.
Zhongwen Wang; Don Forsyth; Benjamin P-Y Lau; Luc Pelletier; Roni Bronson; Dean Gaertner
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  57     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-10-07     Completed Date:  2010-01-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9250-5     Citation Subset:  IM    
Food Research Division, Banting Research Center 2203C, Health Canada, Ottawa, Ontario, Canada.
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MeSH Terms
Child, Preschool
Chromatography, High Pressure Liquid / methods
Environmental Exposure*
Food Contamination / analysis*
Fruit / chemistry*
Perchloric Acid / analysis*
Tandem Mass Spectrometry
United States
United States Food and Drug Administration
Vegetables / chemistry*
Reg. No./Substance:
7601-90-3/Perchloric Acid

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

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