Aren't UVA and UVB the low energy / non-ionizing parts of the UV spectrum?
"UV-A and UV-B are technically non-ionizing, but all UV wavelengths can cause photochemical reactions that to some extent mimic ionization. For example, ultraviolet light, even in the non-ionizing range, can produce free radicals that induce cellular damage and can cause skin cancer."
https://radiation.ncdhhs.gov/NonIonizing/UVRad.htm#:~:text=U....