Document Details
PURL
Title:
A REVIEW OF THE MPCs FOR NATURAL THORIUM
Author(s):
Subject Terms:
FUELS AND MATERIALS ENGINEERINGHANFORD SITEISOTOPESMETABOLISMPERMISSIBLE LIMITSREACTOR TECHNOLOGYTHORIUMTOXICOLOGY
Document Location:
DOE Public Reading Room - Hanford Battelle P.O. Box 999 MS H2-53 Richland WA 99352 (509)372-7443
Document Type:
REPORT
Publication Date:
1955 Nov 21
Declassification Status:
Declassified
Document Pages:
15
Accession Number:
RL-1-362908
Document Number(s):
HW-40105
Originating Research Org.:
GE - HAPO
OpenNet Entry Date:
2004 Feb 24
OpenNet Modified Date:
2015 Jun 19
Description/Abstract:
AVAILABLE DATA ON AIR MPC'S AND METABOLISM OF TH HAVE BEEN REVIEWED. SINCE CHEMICAL TOXICITY OF TH IS LOW BY ANY ROUTE OF ADMINISTRATION, PERMISSIBLE LEVELS ARE LIMITED BY RADIATION EFFECTS. BODY DEPOSITION FROM INTRAMUSCULAR OR ORAL ADMINISTRATION IS PREDOMINANTLY IN BONE. MAXIMUM PERMISSABLE LEVELS ARE: 0.01 MICRO CURIES IN THE BODY FOR SOL COMPOUNDS OR 0.002 MICRO CURIES IN THE LUNG FOR INSOL COMPOUNDS; 5X10 MINUS 7 MICRO CURIES/CC FOR WATER; AND 3X10 MINUS 13 MICRO CURIES/CC FOR AIR. LIMITS ARE DERIVED FOR THE KEY DAUGHTER PRODUCTS WHICH MAY OCCUR IN QUANTITIES IN EXCESS OF THE RADIOACTIVE EQUILIBRIUM AMOUNTS IN ANY SAMPLE.