1. TEOM 1400a Ambient Particulate Monitor manufactured by Rupprecht & atashnick, 25 Corporate Circle, Albany, NY 12203 USA
2. GBAM-1020 Beta Attenuation Ambient Particulate Mass Monitor manufactured by Pac Will Environmental, P.O. Box 9124, Hamilton, Ont., Canada L8H 758
3. DataRAM Portable Real-time Aerosol Monitor, manufactured by MIE, 7 Oak Park Bedford, MA 01730
4. PIXE International Corp., P.O. Box 7744, Tallahassee, FL 32316, USA
5. Aerosol study in the town of Genova with a PIXE analysis