Chapter Action levels – thermal effects

England, Wales and Scotland

Table AL3 – ALs for exposure to electromagnetic fields from 100 kHz to 300 GHz

Frequency range	External electric field strength ALs (E) [Vm-¹]	Magnetic flux density ALs (B)[µT]	Power density AL (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 f^1/2	1.0 × 10^-5 f^1/2	-
2 ≤ f < 6 GHz	1.4 × 10²	4.5 × 10^-1	-
6 ≤ f ≤ 300 GHz	1.4 × 10²	4.5 × 10^-1	50
Exposure levels not exceeding the ALs will be compliant with:	Up to 6 GHz: the health effect ELVs in Table ELV4 6 - 300 GHz: the health effect ELV in Table ELV6		The health effect ELV in Table ELV6

Notes on Part 2