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Main Title Comparative Thermoregulatory Response to Passive Heat Loading by Exposure to Radiofrequency Radiation.
Author Gordon, C. J. ; Ali, J. S. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1987
Report Number EPA/600/J-87/265;
Stock Number PB88-171160
Additional Subjects Ambient temperature ; Microwaves ; Reprints ; Allometric function ; Temperature regulation ; Tail vasodilation ; Specific absorption rate
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NTIS  PB88-171160 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract Colonic and tail skin temperature of the unrestrained Fischer rat were measured immediately after a 90 min exposure to 600 MHz radiofrequency radiation in a waveguide-type system. Ambient temperature (Ta) was maintained at either 20, 28, or 35 C. The specific absorption rate (SAR) in dimensions of W/kg was controlled at a constant level through a feedback control circuit. The SAR needed to elevate colonic and tail skin temperature decreased with increasing Ta. For example, a 0.5 C elevation in colonic temperature occurred at SAR's of 4.3, 0.9, and 0.5 W/kg when Ta was maintained at 20, 28, and 35 C, respectively. Data from the present study were combined with data from earlier studies to assess the impact of varying Ta on the thermogenic effect of RF radiation in different species. In species ranging in mass from 0.02 to 3.2 kg, a double logarithmic plot of body mass versus SAR needed to elevate colonic temperature by 0.5 C was linear and inverse with a high goodness of fit (r(2) = -0.94). The highly correlated allometric relationship shows that, as body mass decreases, the relative impact of Ta on the thermogenic effect of RF radiation increases.
Supplementary Notes Pub. in Comparative Biochemistry and Physiology, v88A n1 p107-112 1987.
NTIS Title Notes Journal article.
Title Annotations Reprint: Comparative Thermoregulatory Response to Passive Heat Loading by Exposure to Radiofrequency Radiation.
PUB Date Free Form 1987
Category Codes 57V; 57S
NTIS Prices PC A02/MF A01
Primary Description 600/11
Document Type NT
Cataloging Source NTIS/MT
Control Number 812722880
Origin NTIS
Type CAT