About: http://webisa.webdatacommons.org/156750356

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	Heavy metal such as lead, cadmium, chromium, and copper is regarded as major pollutants in wastewater.
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com