RT Report T1 Radiofrequency and Microwaves: Environmental Health Criteria 16 A1 United Nations Environment Programme, A1 World Health Organization, K1 microwave K1 radio waves K1 environmental health K1 radiation K1 radiation effect K1 radiation monitoring K1 radiation protection K1 radiation level SN 92 4 154076 1 YR 1981 FD 1981 LK https://wedocs.unep.org/handle/20.500.11822/29298 UL https://wedocs.unep.org/handle/20.500.11822/29298 NO Microwave and radiofrequency (RE) radiation constitute part of the whole electromagnetic spectrum. This document is concernedwith frequencies lying between 105 and 3 × 1011 Hz (100 kHz and 300 GHz). The term radiofrequency refers to the range 100 kHz-300 MHz (3 km to 1 m wavelength in air) and microwaves to the frequency range of 300 MHz-300 GHz (1 m to 1 mm wavelengthin air). DS UN Environment Document Repository RD Sep 16, 2026