ASEM has conducted exposure assessments to determine the level of employee exposure to a substance.  Depending on the substance in question a combination of several instruments (particle counter, employee sampling pump, etc.) will be used:

• Mold Sampling
  
• ​Silica
• ​Carbon nanofibers/nanotubes
• Diesel particulates
• Various chemicals per their established NIOSH Sampling Method
• Nuisance dust
• Radon