About: http://webisa.webdatacommons.org/183210591

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	However, lead is a highly toxic material and in the 1990s there was a concern that this might be a substantial new threat to the environment as the lead leaches out of electronic devices buried in landfills.
http://www.w3.org/ns/prov#wasQuotedFrom	energy.gov