| Main Title |
An investigation of broadcast radiation intensities at Mt. Wilson, California / |
| Author |
Tell, Richard A. ;
O'Brien., Patrick J.
|
| Other Authors |
|
| CORP Author |
Office of Radiation Programs, Washington, D.C. Environmental Analysis Div. |
| Publisher |
U.S. Environmental Protection Agency, Office of Radiation Programs ; Available from the National Technical Information Service, |
| Year Published |
1977 |
| Report Number |
ORP/EAD-77-2 |
| Stock Number |
PB-275040 |
| OCLC Number |
36647411 |
| Subjects |
Electromagnetic fields--California--Los Angeles
|
| Additional Subjects |
Radio field strength ;
Radiation hazards ;
Measurement ;
Radio stations ;
Television stations ;
California ;
Irradiation ;
Intensity ;
Very high frequencies ;
Ultrahigh frequencies ;
Mount Wilson ;
Los Angeles(California)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA ORP-EAD-77-2 |
|
Headquarters Library/Washington,DC |
06/11/2018 |
| ELBD ARCHIVE |
EPA ORP-EAD-77-2 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-275 040 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 20 pages : illustrations, map ; 28 cm |
| Abstract |
The report describes a series of measurements made to determine radio frequency exposure from television and FM broadcast stations located on Mt. Wilson to areas near the tower bases and within about 2,000 feet. Portable broadband survey instruments and a spectrum analyzer with dipole antennas were employed in these measurements and used in a comparison of indicated radiation levels and assess difficulties or peculiarities of the specific types of equipment. Maximum ground level exposure values were in the 1-7 mW/sq cm range. Intensities of about 0.1 mW/sq m were measured inside the Mt. Wilson Post Office which is located in the immediate vicinity of a large number of towers. It was found that wide ranges in exposure could occur over very small geographic areas revealing the potential for significant uncertainties in predictive modeling. |
| Notes |
"ORP/EAD-77-2." "April 1977." Includes bibliographical references. |
