About: http://webisa.webdatacommons.org/218738285

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	The samples have been tested for more than 400 substances, or analytes, such as petroleum hydrocarbons and heavy metals.
http://www.w3.org/ns/prov#wasQuotedFrom	unep.org