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Health effects ELVs for frequencies from 100 kHz to 6 GHz (Table A1) are limits for energy and power absorbed per unit mass of body tissue generated from exposure to electric and magnetic fields.
Sensory effects ELVs for frequencies from 0,3 to 6 GHz (Table A2) are limits on absorbed energy in a small mass of tissue in the head from exposure to electromagnetic fields.
Health effects ELVs for frequencies above 6 GHz (Table A3) are limits for power density of an electromagnetic wave incident on the body surface.
Health effects ELVs for exposure to electromagnetic fields from 100 kHz to 6 GHz
Health effects ELVs | SAR values averaged over any six-minute period |
---|---|
ELVs related to whole body heat stress expressed as averaged SAR in the body | 0,4 Wkg–1 |
ELVs related to localised heat stress in head and trunk expressed as localised SAR in the body | 10 Wkg–1 |
ELVs related to localised heat stress in the limbs expressed as localised SAR in the limbs | 20 Wkg–1 |
Sensory effects ELVs from 0,3 GHz to 6 GHz
This sensory effects ELVs (Table A2) is related to avoiding auditory effects caused by exposures of the head to pulsed microwave radiation.
Sensory effects ELVs for exposure to electromagnetic fields from 0,3 to 6 GHz
Frequency range | Localised specific energy absorption (SA) |
---|---|
0,3 ≤ f ≤ 6 GHz | 10 mJkg–1 |
Health effects ELVs for exposure to electromagnetic fields from 6 to 300 GHz
Frequency range | Health effects ELVs related to power density |
---|---|
6 ≤ f ≤ 300 GHz | 50 Wm–2 |
The following physical quantities and values are used to specify the action levels (ALs), the magnitude of which are established to ensure by simplified assessment the compliance with the relevant ELVs or at which relevant protection or prevention measures specified in Article 5 must be taken:
ALs(E) for electric field strength E of time varying electric field, as specified in Table B1;
ALs(B) for magnetic flux density B of time varying magnetic field, as specified in Table B1;
ALs(S) for power density of electromagnetic waves, as specified in Table B1;
ALs(IC) for contact current, as specified in Table B2;
ALs(IL) for limb current, as specified in Table B2;
ALs correspond to calculated or measured field values at the workplace in the absence of the worker, as maximum value at the position of the body or specified part of the body.
Action levels (ALs) for exposure to electric and magnetic fields
ALs(E) and ALs(B) are derived from the SAR or power density ELVs (Tables A1 and A3) based on the thresholds related to internal thermal effects caused by exposure to (external) electric and magnetic fields.
ALs for exposure to electric and magnetic fields from 100 kHz to 300 GHz
Frequency range | Electric field strength ALs(E) [Vm–1] (RMS) | Magnetic flux density ALs(B) [μT] (RMS) | Power density ALs(S) [Wm–2] |
---|---|---|---|
100 kHz ≤ f < 1 MHz | 6,1 × 102 | 2,0 × 106/f | — |
1≤ f < 10 MHz | 6,1 × 108/f | 2,0 × 106/f | — |
10 ≤ f < 400 MHz | 61 | 0,2 | — |
400 MHz ≤ f < 2 GHz | 3 × 10–3 f½ | 1,0 × 10–5 f½ | — |
2 ≤ f < 6 GHz | 1,4 × 102 | 4,5 × 10–1 | — |
6 ≤ f ≤ 300 GHz | 1,4 × 102 | 4,5 × 10–1 | 50 |
ALs for steady state contact currents and induced limb currents
Frequency range | Steady state contact current, ALs(IC) [mA] (RMS) | Induced limb current in any limb, ALs(IL) [mA] (RMS) |
---|---|---|
100 kHz ≤ f < 10 MHz | 40 | — |
10 ≤ f ≤ 110 MHz | 40 | 100 |