Absence of embryotoxic effects from low-level (nonthermal) exposure of rats to 100 MHz radiofrequency radiation
| Autor: | J M Lary, D L Conover, P H Johnson |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Litter (animal)
Fetus Radio Waves Chemistry Body Weight Public Health Environmental and Occupational Health Specific absorption rate Abnormalities Radiation-Induced Rats Andrology Toxicology Pregnancy Fetal sex Animals Gestation Female Maximum Allowable Concentration Irradiation Radiofrequency radiation |
| Zdroj: | Scandinavian Journal of Work, Environment & Health. 9:120-127 |
| ISSN: | 1795-990X 0355-3140 |
| Popis: | Pregnant Sprague-Dawley rats were exposed to radio-frequency radiation at a frequency of 100 MHz and a power density of 25 mW/cm2 for 6 h 40 min daily on gestation days 6--11. The total exposure time was 40 h. The exposure resulted in a specific absorption rate of 0.4 W/kg. This value corresponds to the maximum permissible level for specific absorption rate in the 1982 American National Standards Institute (ANSI) standard for radiofrequency/microwave exposure. The exposure produced no increase in maternal colonic temperature. Irradiated rats did not differ from sham-irradiated rats with respect to the number of implantations per litter, percentage of implantations dead or resorbed, percentage of fetuses malformed. fetal weight, fetal crown-rump length, or fetal sex ratio. The irradiated fetuses had fewer minor skeletal variations than the controls. These results suggest that radiofrequency/microwave radiation is not teratogenic or embryotoxic for rats at the maximum permissible exposure level of the 1982 ANSI standard. |
| Databáze: | OpenAIRE |
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