About: http://webisa.webdatacommons.org/157130054

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	Although this material is a small part by weight of the total emissions, it may be significant in terms of a different measure which is the number of particles per unit volume of exhaust.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com