Document Detail


Daily intake of manganese by the adult population of Mumbai.
MedLine Citation:
PMID:  10811250     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The daily intake of manganese (Mn) estimated through air, water and duplicate dietary analysis is found to range from 0.67 to 4.99 mg with a mean value of 2.21 mg. Ingestion through food contributed to the predominant fraction of the intake. The turnover rate of Mn through blood is approximately 2 h, based on the mean concentration of Mn in blood of 1.54 microg l(-1). The average concentrations of Mn in water and air were approximately 1.42 microg l(-1) and 37 ng m(-3), respectively. The daily intake of Mn by the adult population of Mumbai is closer to the lower bound of the recommended limit of 2-5 mg. Electro Thermal Atomic Absorption Spectrophotometry (ET-AAS), has been used for the determination of Mn in a variety of environmental and human biological fluids. The detection limit of Mn for a volume injection of 20 microl is 2 pg absolute. The precision of the method is established by analyzing a synthetic mixture containing various elements in different quantities (0.5-10 ppm) and is found to be within +/- 8%. The reliability of estimation is further assessed through the analysis of Standard Reference Materials (SRMs) of soil, hay, milk powder and fish tissue obtained from IAEA.
Authors:
R M Tripathi; S Mahapatra; R Raghunath; V N Sastry; T M Krishnamoorthy
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Science of the total environment     Volume:  250     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-06-16     Completed Date:  2000-06-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  43-50     Citation Subset:  IM    
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India. rmtripa@apsara.barc.ernet.in
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MeSH Terms
Descriptor/Qualifier:
Adult
Environmental Exposure
Environmental Monitoring / methods
Female
Food Contamination*
Humans
India
Male
Manganese / analysis*
Reproducibility of Results
Water Supply
Chemical
Reg. No./Substance:
7439-96-5/Manganese

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


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