About: http://webisa.webdatacommons.org/323163178

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	When pollution hits this level people are advised to reduce physical exertion, particularly outdoors, especially if you experience symptoms such as sore eyes, cough or sore throat.
http://www.w3.org/ns/prov#wasQuotedFrom	chowgals.com