GM calculator
for a geometric mean size of a given particle size distribution
...If you need modifications, please let us know through the support page. For more detail, please see and cite our following paper:
Yamamoto, N., Nazaroff, W.W., Peccia, J. (2014). Assessing the aerodynamic diameters of taxon-specific fungal bioaerosols by quantitative PCR and next-generation DNA sequencing, Journal of Aerosol Science 78, 1-10.