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Mortality in Rats Exposed to CW Microwave Radiation at 0.95, 2.45, 4.54, and 7.44 GHz.
Final rept. 1 Jul-31 Dec 73,
STANFORD RESEARCH INST MENLO PARK CALIF
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Dose-response lethality data have been obtained for rats exposed frontally to CW microwave radiation in the frequency range 0.9 to 8 GHz. Approximately 1400 male rats of the Sprague-Dawley strain have been exposed groups to four separate frequencies 0.95, 2.45, 4.54, and 7.44 GHz. Power density levels have ranged from approximately 0.2 Wsq cm to 12 Wsq cm, and lethal exposure durations from approximately 10 sec to 300 sec. Gross and histologic evaluation of selected tissues from some 20 animals has been obtained. The cause of death has been established as congestion, hemorrhage, and obstruction of nasal passages andor congestion, hemorrhage, and often edema of the lungs. The lethality data have been subjected to a probit analysis, yielding LD50 curves for each of the four frequencies, and the LD50 values have been empirically fitted with a mathematical model. Modified author abatract
APPROVED FOR PUBLIC RELEASE