Accession Number : AD0761638

Title :   Inhalation of Radioiodine from Fallout: Hazards and Countermeasures.

Descriptive Note : Final rept.,

Corporate Author : ENVIRONMENTAL SCIENCE ASSOCIATES BURLINGAME CALIF

Personal Author(s) : Cole,Richard

Report Date : AUG 1972

Pagination or Media Count : 308

Abstract : The late development of severe damage to the thyroid in most of the Marshallese children in the group on Rongelap Atoll most heavily exposed to fallout from the 1954 CASTLE BRAVO nuclear test has raised questions about the importance of radioiodine intake in sheltered opulations in the civil-defense context. As a first step in investigation of this problem, an evaluation was made of the nature and extent of the intake of radioiodine in the Marshall Islands, with emphasis on the possibility that inhalation was a major route of entry. The, on the basis of the literature on fallout phenomenology, an estimate of the extent and rate of volatilization of iodine from siliceous fallout particles was made. It was found that under certain circumstances significant thyroid doses could be the result of inhalation intake and that the use of blocking iodide as a countermeasure was indicated. The effectiveness and the possible side effects of blocking iodide are discussed, and recommendations for administration are made, together with cost estimates. (Modified author abstract)

Descriptors :   (*IODINE, *FALLOUT), (*RADIATION HAZARDS, IODINE), (*RADIOACTIVE ISOTOPES, IODINE), RESPIRATION, THYROID GLAND, IODIDES, COUNTERMEASURES

Subject Categories : Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE