Comparison of Different Far-UVC Sources with Regards to Intensity Stability, Estimated Antimicrobial Efficiency and Potential Human Hazard in Comparison to a Conventional UVC Lamp

Опубликована: Ноя. 19, 2024

The recently much noticed Far-UVC spectral range offers the possibility of inactivating pathogens without necessarily posing a major danger to humans. Unfortunately, there are various sources that differ significantly in their longer wavelength UVC emission and, subsequently, risk potential. Therefore, simple assessment method for is presented here. In addition, temporal intensity stability was examined order reduce possible errors irradiation measurements. For this purpose, four and conventional Hg lamp were each spectrally measured about 100 h mathematically evaluated antimicrobial effect hazard potential using available standard data. two filtered KrCl lamps found be most stable after warm-up time 30 min. With regard effect, radiation efficiencies all (Far-) more or less similar. However, calculated differences human eyes skin than one magnitude. safest, followed by an unfiltered lamp, LED finally, lamp. When experimenting with these sources, irradiance should checked once. If could applied presence humans, better choice any other sources.

Язык: Английский

Wavelength-Specific Inactivation Mechanisms and Efficacy of Germicidal UVC for Airborne Human Coronavirus

Journal of Hazardous Materials, Год журнала: 2024, Номер 484, С. 136666 - 136666

Опубликована: Ноя. 28, 2024

Язык: Английский