About: http://webisa.webdatacommons.org/5360818

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	To assess the condition of rivers and streams, environmental scientists generally measure variables such as temperature, acidity and nutrient concentrations.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com