PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Rufus L Chaney, an agronomist in the ARS Environmental Management and Byproduct Utilization Laboratory in Beltsville, Md., is an international expert on assessing the health and environmental risks posed by trace metals in contaminated soils, manures, biosolids, composts and other soil amendments.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov