About: http://webisa.webdatacommons.org/125606472

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	Coal ash contains toxic substances such as arsenic, selenium, aluminum and other heavy metals.
http://www.w3.org/ns/prov#wasQuotedFrom	wunc.org