Main Title |
Genetic and cellular effects of microwave radiations / |
Author |
Dutta, S. K.
|
CORP Author |
Howard Univ., Washington, DC. Dept. of Botany.;Health Effects Research Lab., Research Triangle Park, NC. Experimental Biology Div. |
Publisher |
Health Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1980 |
Report Number |
EPA 600/1-80/027; EPA-R-803561 |
Stock Number |
PB80-202419 |
OCLC Number |
07602996 |
Subjects |
Microwaves--adverse effects
|
Additional Subjects |
Radiation effects ;
Microwaves ;
Saccharomyces cerevisiae ;
Genetics ;
Cells(Biology) ;
Exposure ;
Salmonella typimurium ;
Escherichia coli ;
Lethal dosage ;
Temperature ;
Mutagenesis
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-1-80-027 |
c.1 |
Headquarters Library/Washington,DC |
04/28/2014 |
ELBD ARCHIVE |
EPA 600-1-80-027 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
NTIS |
PB80-202419 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
ix, 32 pages ; 28 cm. |
Abstract |
This research program was initiated with the overall objective of determining genetic and cellular effects from exposure of unicellular organisms to selected frequencies of CW and pulsed microwave radiation which is prevalent in the biosphere. Several tester strains of the bacterium Salmonella typimurium, TA-98, TA-100, TA-1535 and TA-1538; the bacterium Escherichia coli, W3110 (pol A) and p3438 (pol A-, repair deficient); and the yeast Saccharomyces cerevisiae, D3, D4 and D5 were tested for lethal and mutagenic events. Effects of known elevated temperatures were studied to distinguish microwave induced temperature effects from the direct temperature effects. Three kinds of microwave exposure systems were used in these studies: (1) farfield antenna (for 2.45 GHz and 8.5 - 9.5 GHz), (2) waveguide (for 8-10 GHz) and (3) TEM (transverse electric and magnetic mode) transmission lines for 915 MHz radiation. The SAR (specific absorption rate) for various exposures ranged from 0.1 W/kg to 40 W/kg. Pulse repetition rates were 400 Hz and 1000 Hz for pulsed microwave radiations. The studies revealed no increase in mutations or of gene conversions when cells were exposed to microwave radiations, but yeast and bacterial strains showed cellular lethality caused by temperature rises (greater than 10C) at higher power levels. |
Notes |
"Department of Botany, Howard University." "May 1980." "EPA Grant #R803561." Includes bibliographical references (pages 31-32). |