About: http://webisa.webdatacommons.org/222598964

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	It is estimated that a quarter of the world???s population is exposed to unhealthy concentrations of air pollutants such as particulate matter, sulphur dioxide, and other chemicals.
http://www.w3.org/ns/prov#wasQuotedFrom	who.int