Far UV-C radiation: An emerging tool for pandemic control

IF 11.4 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Critical Reviews in Environmental Science and Technology Pub Date : 2022-06-10 DOI:10.1080/10643389.2022.2084315

E. R. Blatchley, D. Brenner, H. Claus, Troy E. Cowan, K. Linden, Yijing Liu, T. Mao, Sungjin Park, Patrick J. Piper, R. Simons, D. Sliney

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引用次数: 32

Abstract

Abstract Far UV-C, informally defined as electromagnetic radiation with wavelengths between 200 and 230 nm, has characteristics that are well-suited to control of airborne pathogens. Specifically, Far UV-C has been shown to be highly effective for inactivation of airborne pathogens; yet this same radiation has minimal potential to cause damage to human skin and eye tissues. Critically, unlike UV-B, Far UV-C radiation does not substantially penetrate the dead cell layer of skin (stratum corneum) and does not reach germinative cells in the basal layer. Similarly, Far UV-C radiation does not substantially penetrate through corneal epithelium of the eye, thereby preventing exposure of germinative cells within the eye. The most common source of Far UV-C radiation is the krypton chloride excimer (KrCl*) lamp, which has a primary emission centered at 222 nm. Ozone production from KrCl* lamps is modest, such that control of indoor ozone from these systems can be accomplished easily using conventional ventilation systems. This set of characteristics offers the potential for Far UV-C devices to be used in occupied spaces, thereby allowing for improved effectiveness for inactivation of airborne pathogens, including those that are responsible for COVID-19. Graphical Abstract

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远UV-C辐射：一种新出现的流行病控制工具

摘要远UV-C，非正式定义为波长在200到230之间的电磁辐射 nm具有非常适合于控制空气传播病原体的特性。具体而言，远紫外线-C已被证明对空气传播病原体的灭活非常有效；然而，同样的辐射对人类皮肤和眼睛组织造成损害的可能性很小。至关重要的是，与UV-B不同，远UV-C辐射基本上不会穿透皮肤的死细胞层（角质层），也不会到达基底层的生发细胞。类似地，远UV-C辐射基本上不会穿透眼睛的角膜上皮，从而防止眼睛内的生发细胞暴露。最常见的远UV-C辐射源是氯化氪准分子（KrCl*）灯，其主要发射集中在222 nm。KrCl*灯产生的臭氧量不大，因此使用传统的通风系统可以很容易地控制这些系统产生的室内臭氧。这组特性为远紫外线-C设备在占用空间中使用提供了潜力，从而提高了空气传播病原体灭活的有效性，包括那些导致新冠肺炎的病原体。图形摘要

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来源期刊

Critical Reviews in Environmental Science and Technology 环境科学-环境科学

CiteScore

27.30

自引率

1.60%

发文量

审稿时长

2 months

期刊介绍： Two of the most pressing global challenges of our era involve understanding and addressing the multitude of environmental problems we face. In order to tackle them effectively, it is essential to devise logical strategies and methods for their control. Critical Reviews in Environmental Science and Technology serves as a valuable international platform for the comprehensive assessment of current knowledge across a wide range of environmental science topics. Environmental science is a field that encompasses the intricate and fluid interactions between various scientific disciplines. These include earth and agricultural sciences, chemistry, biology, medicine, and engineering. Furthermore, new disciplines such as environmental toxicology and risk assessment have emerged in response to the increasing complexity of environmental challenges. The purpose of Critical Reviews in Environmental Science and Technology is to provide a space for critical analysis and evaluation of existing knowledge in environmental science. By doing so, it encourages the advancement of our understanding and the development of effective solutions. This journal plays a crucial role in fostering international cooperation and collaboration in addressing the pressing environmental issues of our time.