About: http://webisa.webdatacommons.org/144402014

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	Trends are overall increases or decreases in a measurement such as concentration during a specified period.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov