p	o
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/ssn/Property
http://purl.org/dc/terms/source	http://www.disit.org/km4city/schema#Air_quality_monitoring_station
http://www.disit.org/km4city/schema#value_unit	"µg/m³"