Formation of secondary aerosol by 222 nm Far-UVC irradiation on SO2

Don’t Forget About the Microbes on Surfaces in Indoor Atmospheric Chemistry

“…222 nm far-UVC light has been proposed as a safer yet effective alternative since limited light can penetrate through epithelial cells because proteins and biomolecules produced by living cells absorb short UV wavelengths (200 to 230 nm). 11 Recent studies showed that 222 nm far-UVC light is effective against microbes during disinfection, 12 but its usage may have some drawbacks (e.g., indoor secondary aerosol formation 13 ) that require further study. The development of other light-based disinfection approaches that carry less health and safety risks will also be helpful.…”