About: http://webisa.webdatacommons.org/395858836

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	Chemicals that are often used in drilling such as crystalline silica, methanol and hydrochloric acid are known carcinogens that harm the heart, liver, brain and respiratory and immune systems.
http://www.w3.org/ns/prov#wasQuotedFrom	libertyhill.org