About: http://webisa.webdatacommons.org/364229612

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	although dust is the most insidious industrial health hazard, laws on dust control and ventilation were generally ineffective.
http://www.w3.org/ns/prov#wasQuotedFrom	dol.gov