About: http://webisa.webdatacommons.org/32831014

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	Accordingly, other ions cause no adverse effects in amounts commonly known to be present in natural water, for example fluoride, chloride, phosphate, sulfate, and metals such as calcium, magnesium, iron, aluminum, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com