Exposure characteristics | Frequency range | Internal electric field (V/m) |
---|---|---|
Occupational exposure | ||
The central nervous system tissue of the head | 1–10 Hz | 0.5/f |
10–25 Hz | 0.05 | |
25–400 Hz | 2 × 10−3 f | |
400 Hz–3 kHz | 0.8 | |
3 kHz–10 MHz | 2.7 × 10−4 f | |
All tissues of head and body | 1 Hz–3 kHz | 0.8 |
3 kHz–10 MHz | 2.7 × 10−4 f | |
General public exposure | ||
The central nervous system tissue of the head | < 1 Hz | 0.1/f |
1–4 Hz | 0.01 | |
4 Hz–1 kHz | 4 × 10−5 f | |
1–100 kHz | 0.4 | |
100 kHz–10 MHz | 1.35 × 10−4 f | |
All tissues of head and body | 1 Hz–3 kHz | 0.4 |
3 kHz–10 MHz | 1.35 × 10−4 f |