About: http://webisa.webdatacommons.org/118572877

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 first DBP known chloroform was identified by Rook in 1974 using GC-MS. Soon thereafter, chloroform and other trihalomethanes were found to be ubiquitous in chlorinated drinking water.
http://www.w3.org/ns/prov#wasQuotedFrom	epa.gov