About: http://webisa.webdatacommons.org/18414578

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	es, such as chlorine, dissolved heavy metal ions (arsenic, cadmium chromium VI, chromium III, selenium, and mercury), sulfur, iron and the like from the fluid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com