|
dal sito Studio Rilevazioni
Ambientali
Traduzione
in Italiano  (selezionare English to Italian)
Limiti ed unità di misura (V/m²
volt/metro, W/cm²
watt/centimetroquadro, ecc.)
Comparing Standards
for general public RF exposure levels
(900 and 1800
MHz are the two main existing UK mobile phone bands)
Prepared
by Alasdair Philips, Technical Director, Powerwatch, June 2000
Multiple signals should
be added together, as the square root of the sum of squares of the individual
signals.
Figures in bold
in the table below are the main units given in the guidance.
Near-field levels
next to a working mobile phone handset vary enormously depending on the antenna
design but can
often exceed the electric field and power density levels set in the general
exposure standards
|
General Public
Levels
|
Frequency
MHz
|
E
field
V/m
|
Power
W/m²
|
Power
µW/cm²
|
|
Broadband ‘natural’
background
|
300
- 3000
|
<
0.00003
|
<
0.00000001
|
<
0.000001
|
|
Average US (EPA
1980)----->
City Dweller max (FCC 1999)----->
|
approx
30 - 300000
|
<
0.13
< 2
|
<
0.00005
< 0.01
|
<
0.005
< 1
|
|
Dr Cherry (NZ)
proposal for now
|
300
- 300000
|
0.28
|
0.0002
|
0.02
|
|
City of Salzburg,
Austria, 1998
|
300
- 300000
|
0.62
|
0.001
|
0.1
|
|
Typical max in
public areas near base station masts (can be much higher)
|
900
& 1800
|
2
|
0.01
|
1
|
|
EU & UK EMC
Regulations equipment
suscept test level (domestic & comm.)
|
30
- 2000
|
3
|
not
specified
|
not
specified
|
|
Swiss Ordinance
ORNI ( for base
stations ) From 1st.Feb.2000
|
900
1800
|
4
6
|
not
specified
|
not
specified
|
|
Toronto Health
Board
2000, proposal based on SC6/100
|
900
1800
|
5
6
|
0.06
0.1
|
6
10
|
|
Russia 1988 (general
public)
|
300
- 300000
|
6
|
0.1
|
10
|
|
Italy, Decree
381 (1999)
|
30
- 30000
|
6
|
0.1
|
10
|
|
Poland (non-stationary
people)
(stationary people)
|
300
- 300000
|
19
6
|
1
0.1
|
100
10
|
|
Two USA research
bases (1995)
|
30
- 100000
|
19
|
1
|
100
|
|
Australia 1988
(under review)
|
900
/ 1800
|
27
|
2
|
200
|
|
ICNIRP, 1998 (recognised
by WHO)
CENELEC, 1995 (EU)
|
900
1800
|
41
58
|
4.5
9
|
450
900
|
|
Canadian Safety
Code 6
(SC6) 1993
|
900
1800
|
47
61
|
6
10
|
600
1000
|
|
FCC OET65:1997-01
(USA)
based on ANSI/IEEE C95.1-1992
|
900
1800
|
47
61
|
6
10
|
600
1000
|
|
NRPB, 1993
(Current UK Investigation Levels)
|
900
1800
|
112
194
|
33
100
|
3300
10000
|
|
** Typical, close
to handset antenna
|
900
& 1800
|
50
- 300
|
2
- 50
|
200
- 5000
|
|
