About: http://webisa.webdatacommons.org/291641173

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However, UVC photons are blocked in the upper layers of the atmosphere, thus they do not pose a health problem except in those regions where the ozone layer is weakened.
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com