Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom
Michael F. Link, Rileigh L. Robertson, Andrew Shore, Behrang H. Hamadani, Christina E. Cecelski, Dustin Poppendieck
Abstract
of aerosol mass). We find that GUV222 is enhancing indoor chemistry by at least a factor of two for this restroom. The extent of this enhanced chemistry will likely be different for different indoor spaces and is dependent upon ventilation rates, species and concentrations of precursor VOCs, and surface reactivity. Informed by our measurements of ozone reactivity and background aerosol concentrations, we present a framework for predicting aerosol byproduct formation from GUV222 that can be extended to other indoor spaces. Further research is needed to understand how typical uses of GUV222 could impact air quality in chemically diverse indoor spaces and generate indoor air chemistry byproducts that can affect human health.