Browsing UNEP Knowledge Repository by Subject "RADIATION LEVELS"

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    • Radiofrequency and Microwaves - Environmental Health Criteria 16 

      United Nations Environment Programme; World Health Organization (1981)
      Microwave and radiofrequency (RE) radiation constitute part of the whole electromagnetic spectrum. This document is concerned with frequencies lying between 105 and 3 × 1011 Hz (100 kHz and 300 GHz). The term radiofrequency ...

    • Ultraviolet Radiation - Environmental Health Criteria 14 

      United Nations Environment Programme; World Health Organization (1979)
      Exposure to ultraviolet radiation (UVR) occurs from both natural and artificial sources. The sun is the principal natural source. The known effects of UVR on man may be beneficial or detrimental, depending on a number of ...