About: http://webisa.webdatacommons.org/310544126

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	While chemicals such as DDT and PCBs have been banned from production for years, many chemical contaminants are still widely used or persist in the environment.
http://www.w3.org/ns/prov#wasQuotedFrom	chesapeakebay.net