TY - CHAP M1 - Book, Section TI - Nonionizing Radiation A1 - Frank, Arthur L. A2 - Wallace, Robert B. PY - 2017 T2 - Maxcy-Rosenau-Last Public Health and Preventive Medicine, 15e AB - The term nonionizing radiation refers to several forms of electromagnetic radiation of wavelengths longer than those of ionizing radiation. As wavelength lengthens, the energy value of electromagnetic radiation decreases, and all nonionizing forms of radiation have less energy than cosmic, gamma, and x-radiation. In order of increasing wavelength, nonionizing radiation includes ultraviolet (UV) radiation, visible light, infrared radiation, microwave radiation, and radiofrequency radiation. The latter two are often treated as a single category. The energy, frequency, and wavelength range for electromagnetic forces are shown in Table 36-1. All forms of electromagnetic radiation have the same velocity of 3 × 1010 cm/s in a vacuum. SN - PB - McGraw-Hill Medical CY - New York, NY Y2 - 2024/03/29 UR - accessbiomedicalscience.mhmedical.com/content.aspx?aid=1141970771 ER -