NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Thyroid effects of iodine and iodide in potable waterExperiments are reviewed which examine the comparative toxicological effects of iodide (I) and iodine (I2) when used to disinfect drinking water. References are made to a subchronic study in rats, a comparison of the distribution of radiolabeled I and I2, and a demonstration of thyroxine formation in the gastrointestinal tract. The results of the study of the rats are examined in detail; the findings show that I and I2 have opposite effects on the concentrations of thyroid hormones in blood. Iodide slightly decreases circulating thyroxine, while I2 significantly increases the thyroxine concentrations, decreases triiodothyronine levels, and does not change the weight of the thyroid gland. The related effects of I2 ingestion are set forth in detail and are shown to be unique to I2 contamination. Iodine can counteract the effects of iodide and should therefore be used as a disinfectant in drinking water.
Document ID
19920048704
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bull, Richard J.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Thrall, Karla D.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Sherer, Todd T.
(Washington State University Pullman, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 911401
Meeting Information
Meeting: International Conference on Environmental Systems
Location: San Francisco, CA
Country: United States
Start Date: July 15, 1991
End Date: July 18, 1991
Accession Number
92A31328
Funding Number(s)
CONTRACT_GRANT: NAG9-226
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available