Author Archive

EMI at an Electric Power Plant – Heart Patient Health & Safety

EMI at an Electric Power Plant

A study was conducted on electromagnetic interference (EMI) measurements at a Midwest electric power plant as it relates to interference with the proper functioning of a worker’s Medtronic CRDM cardiac pacemaker/defibrillator.  The power plant operator has an implanted Medtronic CRDM device. Stuart D Bagley, MS CIH CSP of IAQ-EMF Consulting Inc. conducted the electromagnetic field interference (EMI) survey at various locations in and outside of the plant to determine if there was potential for interference with the employee’s pacemaker/defibrillator.

EMI Monitoring Results

Results indicate some of the EMI measurements taken at the power plant exceeded implantable medical device guidelines for cardiac devices, esp. Medtronic CRDM Pacemakers/Defibrillators including:
  • Transmission Lines
  • Turbine Room Roof
  • Overhead high-voltage power lines on the roadway
  • Large and small motors (occasionally)
High voltage power lines produce EMI

High voltage power lines produce EMI


Large motors produces EMI

Small Motors produce EMI

Small Motors produce EMI


  • Discuss this report with the employee and their cardiologist.
  • Restricted areas for employees with cardiac implants.
  • Train the employee on the effects of exposure from the source as well as de-energizing and locking out (LOTO).
Stuart D Bagley, Investigator

Stuart D Bagley, MS CIH CSP

About IAQ-EMF Consulting Inc. 

Stuart D. Bagley, MS CIH CSP is an expert investigator in conducting electromagnetic field studies.  He is a Certified Industrial Hygienist (CIH) and a Certified Safety Professional (CSP) with 30 years of experience in environmental health.  He has a Master of Science degree in Occupational and Environmental Health from Wayne State University and a Bachelor of Science degree in Biology from the University of Michigan.  He has conducted innumerable EMI studies for commercial and industrial employers.

We test homes for Electromagnetic Fields (EMF)

IAQ-EMF Consulting Inc. tested a home in the Town of Palm Beach, Florida for electromagnetic fields (EMF).  The home had electric power lines buried around the home.  Burying power lines is a common practice in Palm Beach.  Expert consultant Stuart D Bagley, MS, CIH found some areas of the home exceeded the World Health Organization (WHO) Guidelines.  Childhood leukemia is associated with power frequency EMF.  We advised the homeowner to reconfigure the home floor plan.
Home tested for electromagnetic fields

We test homes for electromagnetic fields                     


EMF Testing Expert Qualifications


EMF Testing Experts Qualifications

  1. IAQ-EMF Consultants at EMF testing experts.
  2. Stuart D. Bagley, MS CIH CSP is an EMF testing expert.  He  has performed electromagnetic field investigations at electric utilities  and  power plants located throughout the United States for over 20 years. 
  3. Consultant was an EHS Manager at General Electric Power Generation.
  4. Board Certified Industrial Hygienist (CIH) and Safety Professional (CSP).  
  5. Master of Science degree in Industrial Hygiene and a Bachelor’s degree in Biology.  
  6. Conducted numerous electromagnetic field investigations at client sites throughout the United States.  
  7. Extensive knowledge of heart device standards and testing methods including Boston Scientific, Medtronic, and Abbott Medical CRM standards.  

Testing EMF / EMI for Deep Brain Stimulators (DBS)

IAQ-EMF Consulting Inc., the testing experts, we test for electromagnetic field interference (EMI) for workers and patients with medical devices such as deep brain stimulators (DBS) as well as pacemakers and defibrillators. Consulting experts since 1990.

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EMF Testing at a Computer-Server Facility

Computer/Server Facility

Computer/Server Facility was tested for EMF. May 21, 2020

A study was completed this past week for a computer-server facility. The purpose was to test for EMF, electromagnetic fields. 🧲 Mission completed. stuart-bagley-pic

Will static electricity affect my pacemaker?

The scientific answer is yes it might, depending on the strength and location of the static electrical charge to the human body. From the Journal “Images in cardiology” “Initiation of pacemaker endless loop tachycardia by triboelectricity” (static electricity)
Static Electricity Affects Pacemakers
“Static electricity or triboelectric signals may account for mysterious oversensing by unipolar pacemakers. When the relative humidity is quite low, an observer, especially when wearing rubber shoes, may gather considerable static electricity when entering a carpeted room. Touching the patient’s skin over a unipolar pacemaker may release sufficient static voltage to be sensed by a unipolar pacemaker.”
Initiation of pacemaker endless loop tachycardia by triboelectricity S BAROLD – Heart, 2001 –