Tom's Experience & Accomplishments

Home Inspections

Understanding Radon

  1. 3.2 pCi/L graph Normal repeating diurnal curve
  2. 30 pCi/L graph Ventilation at end of test
  3. 7.9 pCi/L graph and 0.9 pci/L after mitigation
  4. 3.8 pCi/L graph House ventilated
  5. 144 pCi/L graph and 4.3 pCi/L after mitigation
  6. 108+pCi/L graph Build up and Ventilation
  7. 102 pCi/L graph School room
  8. 900 pCi/L graph in Bedroom air from radon in well water
  9. 2.0 pCi/L graph in bedroom directly below 900 pCi/L bedroom
  10. 1.8 pCi/L graph with heat on; 4.9 pCi/L in the summer
  11. 2.2 to 8.1 pCi/L graph depending on bedroom door being open or closed.
  12. 0.37 pCi/L graph week of outside air
  13. Comparing 1 hour measurements to 48 hour CRM averages graph
  14. 5 pCi/L to 90 pCi/L Unusually high spikes.
  15. The closed house instructions we give to the occupants.

Intercomparison Exercises and Calibration Graphs

  1. November 1994 EML intercomparison graph
  2. April 1994 EML intercomparison graph
  3. November 1993 EML intercomparison graph
  4. De-Emination of NIST Radium SRM into 3.6 liter cylinder
  5. De-Emination of NIST Radium SRM into 13.9 liter cylinder
  6. Graph showing nonlinear error due improper high voltage adjustment
  7. Two plateau graphs for setting high voltage
  8. Three CRM's in agreement after plateau setting of high voltage
  9. Stability of radon chamber with radium clock dials as a source

A Colorado Radon License