About: http://webisa.webdatacommons.org/56675639

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	Around 250 toxic chemicals, including more than 50 known to cause cancer, are left in the air for nonsmokers to inhale.
http://www.w3.org/ns/prov#wasQuotedFrom	laverne.edu