About: http://webisa.webdatacommons.org/262051767

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	There have been substantial reductions in the oxygen-sapping organic substances and nutrients, such as phosphate and nitrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	icpdr.org