Document Detail

Comparison of the post-Chernobyl 137Cs contamination of mushrooms from eastern Europe, Sweden, and North America.
MedLine Citation:
PMID:  8439144     Owner:  NLM     Status:  MEDLINE    
A comparison was made of 134Cs and 137Cs contamination in fungi from eastern Europe and eastern North America. Mean activities of 25 Ukrainian, 6 Swedish, and 10 North American collections were 4,660, 9,750, and 205 Bq/kg (dry weight), respectively. Additional measurements were made on samples from the Moscow, southern Belarus, and Yugoslavia/Bulgaria regions. Activity values were found to vary by several orders of magnitude within all geographic areas, even for the same mushroom species. Significantly higher specific activities were observed in mycorrhizal species than in saprophytic and parasitic fungi. Unfortunately, many of the European mycorrhizal species considered as prized edibles contained unacceptably high levels of 137Cs (> 1,000 Bq/kg [dry weight]) and should be used sparingly as food. By contrast, no mushrooms collected in Ontario or northern Michigan exceeded 1,000 Bq of 137Cs per kg (dry weight). The excessive 137Cs contamination was evident in mushrooms from areas that had substantial fallout from the 1986 accident in reactor 4 at the Chernobyl nuclear power station. However, observations suggest that about 20% of the 137Cs in eastern Europe (Moscow area, Belarus, and Ukraine) is of non-Chernobyl origin.
M L Smith; H W Taylor; H D Sharma
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Applied and environmental microbiology     Volume:  59     ISSN:  0099-2240     ISO Abbreviation:  Appl. Environ. Microbiol.     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-03-24     Completed Date:  1993-03-24     Revised Date:  2010-09-13    
Medline Journal Info:
Nlm Unique ID:  7605801     Medline TA:  Appl Environ Microbiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  134-9     Citation Subset:  IM    
Department of Botany and Biotechnology Laboratory, University of British Columbia, Vancouver, Canada.
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MeSH Terms
Air Pollution, Radioactive / analysis*
Basidiomycota / chemistry*,  radiation effects
Cesium / metabolism
Cesium Radioisotopes / analysis*,  metabolism
Europe, Eastern
Food Contamination, Radioactive / analysis*
Reg. No./Substance:
0/Cesium Radioisotopes; 7440-46-2/Cesium

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

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