About: http://webisa.webdatacommons.org/148465348

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	Researchers have also investigated a number of metals and chemicals including vinyl chloride, petroleum products, lead, arsenic, mercury, and pesticides.
http://www.w3.org/ns/prov#wasQuotedFrom	stjoeschelsea.org