PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Industrial activity such as the burning of fossil fuels, ore processing, medical and municipal waste incineration, the use of dental amalgams, mercury switches and fluorescent light bulbs contribute to the amount of mercury in the environment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wateronline.com