About: http://webisa.webdatacommons.org/408788182

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	Furthermore, lead is now understood to be toxic, especially to children, at levels previously thought to be safe (60).
http://www.w3.org/ns/prov#wasQuotedFrom	who.int