About: http://webisa.webdatacommons.org/289370714

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 several processes, especially those involving heavy metals such as copper or zinc, it is mandatory to regularly analyze for contaminants in effluent water.
http://www.w3.org/ns/prov#wasQuotedFrom	metalfinishing.com