About: http://webisa.webdatacommons.org/124299218

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	But in both cases, the substance is not actually floating in the air, but contained within a building material such as paint or siding or insulation.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com