Temperature regulation in the unrestrained rabbit during exposure to 600-MHz radiofrequency radiation

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5164027

Gordon, C J; Long, M D; Fehlner, K S

Six male New Zealand white rabbits were individually exposed to 600-MHz radiofrequency (RF) radiation for 90 min in a waveguide exposure system at an ambient temperature (Ta) of 20 or 30 C. Immediately after exposure, the rabbit was removed from the exposure chamber and its colonic and ear skin temperatures were quickly measured. The whole-body specific absorption rate (SAR) required to increase colonic and ear skin temperature was determined. At a Ta of 20 C, the threshold SAR for elevating colonic and ear skin temperature was 0.64 and 0.26 W/kg, respectively. At a Ta of 30 C, the threshold SARs were slightly less than at 20 C, with values of 0.26 W/kg for elevating colonic temperature and 0.19 W/kg for elevating ear skin temperature. The relationship between heat load and elevation in deep body temperature shown in the study at 600 MHz is similar to past studies that employed much-higher frequencies of RF radiation (2450-2884 MHz).

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Health Effects Research Lab.
• OSTI ID: 5164027
• Report Number(s): PB-88-170956/XAB; EPA-600/J-86/447
• 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
CONTROL
ELECTROMAGNETIC RADIATION
LABORATORY ANIMALS
MAMMALS
MEDIUM TEMPERATURE
PHYSIOLOGY
RABBITS
RADIATION EFFECTS
RADIATIONS
RADIOWAVE RADIATION
TEMPERATURE CONTROL
THERMOREGULATION
VERTEBRATES