About: http://webisa.webdatacommons.org/283976480

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	These solid grains normally have an average particle diameter of 2 ??m or less, particularly 0.02 to 1 ??m.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com