About: http://webisa.webdatacommons.org/214894880

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	The rubber itself is an organic compound, but metals and alloys are added to the tires, and used tires may release lead and other residues that were accumulated during the tire's life on the road.
http://www.w3.org/ns/prov#wasQuotedFrom	gopherforum.com