About: http://webisa.webdatacommons.org/449479784

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	Ground gas is mainly composed of Methane and Carbon dioxide and presents similar risks to that of landfill gas.
http://www.w3.org/ns/prov#wasQuotedFrom	triton-chemicals.co.uk