About: http://webisa.webdatacommons.org/363761012

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	Safety hazards associated with air-emission controls Microsoft Academic Search Air-emission controls have been installed in refineries since 1990 to comply with environmental regulations such as Benzene NESHAP and the Clean Air Act.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov