About: http://webisa.webdatacommons.org/369292617

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	He points out that ozone, like carbon dioxide, is a trace gas, found in very small amounts in the atmosphere -- 10 parts per million for ozone, 390 ppm for CO2.
http://www.w3.org/ns/prov#wasQuotedFrom	achangeinthewind.com