About: http://webisa.webdatacommons.org/19676922

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	For lakes such as Rotorua, run-off from agricultural land has been a major contributor to excessive levels of nitrate in the lake water.
http://www.w3.org/ns/prov#wasQuotedFrom	waikato.ac.nz