Size of Particle an overview ScienceDirect Topics
Particles of sizes in the range of 1 400 μm can be defined as dusts with particles larger than 100 μm in size settling down near the source of formation The total size range can be divided into three classes larger than 20 μm 20 1 μm and less than 1 μm these can be termed as large particles fines and ultrafines respectively Leonard 1979