About: http://webisa.webdatacommons.org/393081390

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	Hence, the regulations for controlling sulfur oxides, nitrogen oxides, particulate matter and other pollutants such as mercury and volatile organic compounds are being implemented and strengthened in many countries.
http://www.w3.org/ns/prov#wasQuotedFrom	prlog.org