About: http://webisa.webdatacommons.org/29788509

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	Industrial wastes, sewage, use of chemical products, oil spills, and other factors are causing natural water sources to become more and more contaminated.
http://www.w3.org/ns/prov#wasQuotedFrom	spahub.com