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A low-pressure mercury-vapor discharge tube floods the inside of a biosafety cabinet with shortwave UV light when not in use, killing microbes on irradiated surfaces. Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms ...
Bug zapper traps may be installed indoors, or outdoors if they are constructed to withstand the effects of weather. However, they are not effective at killing biting insects (female mosquitoes and other insects) outdoors, [4] [5] being much more effective at attracting and killing other harmless and beneficial insects. A study by the University ...
A germicidal lamp (also known as disinfection lamp or sterilizer lamp) is an electric light that produces ultraviolet C (UVC) light. This short-wave ultraviolet light disrupts DNA base pairing, causing formation of pyrimidine dimers, and leads to the inactivation of bacteria, viruses, and protozoans.
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In reflected UV photography the subject is illuminated directly by UV emitting lamps (radiation sources) or by strong sunlight. A UV transmitting filter is placed on the lens, which allows ultraviolet radiation to pass and which absorbs or blocks all light and infrared radiation. UV filters are made from special colored glass and may be coated ...
While these bugs aren’t bioluminescent, they are often mistaken for fireflies, the most famous light-emitting insects! Soldier beetles are known for their heads mimicking a firefly’s colors.
Pyrethrins have shorter environmental persistence than synthetic pyrethroids because their chemical structure is more susceptible to the presence of UV light and changes in pH. [ citation needed ] The use of pyrethrin in products such as natural insecticides and pet shampoo, for its ability to kill fleas, increases the likelihood of toxicity in ...
There are various kinds of UV light, all originating from the sun (or from UV light-emitting devices.). Only one type of UV light is likely to be effective in eradicating coronavirus—UVC.
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