About: http://webisa.webdatacommons.org/404470562

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	A recent study sponsored by the American Glass Bead Manufacturers??? Association reveals that a growing number of imported glass bead products for highway markings exhibit high concentrations of heavy metals, including arsenic and lead.
http://www.w3.org/ns/prov#wasQuotedFrom	forconstructionpros.com