About: http://webisa.webdatacommons.org/197030392

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	Beijing and other northern Chinese cities have experienced severe levels of pollution particularly since January, when Beijing's air quality index regularly exceeded 500, the scale's maximum reading.
http://www.w3.org/ns/prov#wasQuotedFrom	upi.com