CALORADIANCE — the electromagnetic radiation emitted by a body due to its internal energy.
Natural sources of T. and. are the Sun (see. Solar radiation ), atmosphere of Earth, soil, water; artificial — heating and lighting fixtures (see. Lighting , Heating ), and in hot workshops (see) — furnaces, heated metal etc. Existence in the environment of surfaces, temperature to-rykh differs from the dostoyanny body temperature of the person, can lead to emergence at it the discomfortable thermal state I caused by an overheat or overcooling (see Cooling of an organism, Overheating of an organism, the Thermal shock). From size T. and. heat exchange of the person with the environment depends (see. Thermal control ).
See also Infrared radiation .
Bibliography: Galanin N. F. Radiant energy and its hygienic value, L., 1969; Provincial Yu.D. and Korenevskaya E. I. Hygienic bases of conditioning of a microclimate of residential and public buildings, M., 1978.
Yu. D. Gubernsky, D. I. Ismailova.