About: http://webisa.webdatacommons.org/122304055

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	Unnatural levels of hypoxia, which occur mostly in the summer, are primarily the result of human activities that deliver nutrients such as nitrogen and phosphorus into waterways.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com