R. Handy, M. J. Jackson, G. Robinson, Purdue University, West Lafayette, IN; M. D. Lafreniere, Ohio University-Chillicothe, Chillicothe, OH

Summary: The accurate measurement of airborne particles in the nanometer range is a challenging task. Several different and novel techniques for monitoring nanoparticles are now available and currently being tested. This paper gives an overview of these techiques and provides the advantages and disadvantages to each.