Influence of calcium on the uptake of ingested strontium-Reference-Cited by-同舟云学术

Influence of calcium on the uptake of ingested strontium

Published:2003-08-01 Issue:4 Volume:68 Page:185-188
ISSN:0932-3902
Container-title:Kerntechnik
language:en
Short-container-title:

Author:

Höllriegl V.¹,Roth P.¹,Werner E.¹,Schramel P.²,Wendler I.²,Felgenhauer N.³,Zilker T.³

Affiliation:

1. Institute of Radiation Protection, GSF National Research Center for Environment and Health , Ingolstädter Landstrasse 1 , Neuherberg , Germany

2. Institute of Ecological Chemistry, GSF National Research Center for Environment and Health , Ingolstädter Landstrasse 1 , Neuherberg , Germany

3. Department of Toxicology of the II. Medical Clinic of Technical University Munich , München , Germany

Abstract

Abstract Radioactive isotopes of strontium, mainly 90Sr, released into the environment due to nuclear accidents may contribute significantly to the internal radiation exposure of members of the public after ingestion of strontium with contaminated foodstuffs. The committed radiation dose is significantly dependent on the fraction of the ingested activity that crossed the gut wall (f1 value). The directive 96/29/EURATOM has adopted f1 values of 0.3 for adults. This study was aimed to investigate how far the calcium content of foodstuffs influences the uptake of ingested strontium. For aqueous solutions without calcium containing 1 mg strontium, f1 values of 0.62 ± 0.13 (mean ± SD) were obtained. However, the uptake of 1 mg Sr from milk, and respectively from solutions with calcium was lower than from aqueous solution (f1: = 0.32 ± 0.06, respectively f1: = 0.31 ± 0.06). The data obtained show a significant reduction of the uptake of ingested strontium from milk in comparison to aqueous solution. The calcium content of milk could explain this reduction.

Publisher

Walter de Gruyter GmbH

Subject

Safety, Risk, Reliability and Quality,General Materials Science,Nuclear Energy and Engineering,Nuclear and High Energy Physics,Radiation

Link

https://www.degruyter.com/document/doi/10.1515/kern-2003-0076/pdf

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