PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The principal contaminants of concern in the groundwater are the VOC chlorinated compounds, including 1,1-DCE, 1,2-DCA, benzene, PCE, TCE, 1,1-DCA, and tetrahydrofuran (THF) -- see 1,4-dioxane discussion in next paragraph.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov