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ултраљубичасто (УВ) зрачења
Radiant energy in the range of about 100-380 nanometers (nm). For practical applications, the UV band is broken down further as follows: Ozone-producing - 180-220 nm; Bactericidal (germicidal) - 220-300; Erythemal (skin reddening) - 280-320; "Black" light - 320-400. The International Commission on Illumination (CIE) defines the UV band as UV-A (315-400 nm); UV-B (280-315 nm) and UV-C (100-280 mm).
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A body of relatively still fresh or salt water of considerable size, localized in a basin that is surrounded by land. Lakes are inland and not part of ...