Page 46 of 46
WORK SHEET FOR EMF FIELD STRENGTHS for This Room:
(Pg 2)
Room: _________________
Date
_______
Time(s) of Day:
____________
RADIO/MICROWAVE RADIATION
The Range of Concern regarding Non-Ionizing Electromagnetic Wave Frequencies: 200kHz - 300 GHz
Power density
measured in microwatt per square meter:
μW/m²
(This can be converted
to “Field Strength’ measured in V/m. Refer to Conversion Table )
Measure each Device, Appliance etc.,
“off” and “on”. Values apply to single RF sources, e.g. GSM, UMTS, WiMAX,
TETRA, Radio, Television, DECT cordless phone technology, WLAN..., and refer to peak measurements. They do not
apply to radar signals. More critical RF sources like pulsed or periodic signals (mobile phone technology, DECT, WLAN,
digital broadcasting...) should be assessed more seriously, especially in the higher ranges, and less critical RF sources like
non-pulsed and non-periodic signals (FM, short, medium, long wave, analog broadcasting...) should be assessed more
generously especially in the lower ranges. Space most frequented (greatest human exposure) is assessed most critically.
No Concern:
Power density
in microwatt per square meter:
< 0.1
μW/m²
Slight Concern:
Power density
in microwatt per square meter:
0.1-10
μW/m²
Severe Concern:
Power density
in microwatt per square meter:
10
– 1000 μW/m²
Extreme Concern:
Power density
in microwatt per square meter:
> 1000
μW/m²
