Reduction in metabolic heat production during exposure to radiofrequency radiation in the rat

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5164015

Gordon, C J

Male Sprague-Dawley rats were maintained at an ambient temperature (Ta) of 10 C and exposed to 600-MHz radiofrequency (RF) radiation while metabolic rate (MR) was measured by indirect calorimetry. RF radiation exposures were made in a waveguide-type system which permitted the continuous control of specific absorption rate (SAR). SAR's of 1 to 5 W/kg led to significant reductions in MR when averaged 30 to 60 min after the initiation of RF radiation exposure. The total decrease in MR during RF radiation exposure accounted for approximately 37% of the total RF heat load. Treatment of the rats to the same SARs at Ta of 10 C resulted in a significant elevation of colonic temperature. Thus, in spite of the decrease in MR, heat gain still exceeded heat loss during RF radiation exposure with a resultant elevation in deep body temperature.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Health Effects Research Lab.
• OSTI ID: 5164015
• Report Number(s): PB-88-171137/XAB; EPA-600/J-87/221
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY TEMPERATURE
ELECTROMAGNETIC RADIATION
FREQUENCY RANGE
LABORATORY ANIMALS
MAMMALS
METABOLISM
MHZ RANGE
MHZ RANGE 100-1000
RADIATION EFFECTS
RADIATIONS
RADIOWAVE RADIATION
RATS
RODENTS
VERTEBRATES