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Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band
Published on: May 2, 2018
Occupational exposure to electromagnetic fields in physiotherapy departments
I Maccà1, M L Scapellato, M Carrieri
1Department of Environmental Medicine and Public Health, University of Padova, Via Giustiniani 2, 35128 Padova, Italy. isabella.macca@unipd.it
Radiation Protection Dosimetry
|June 15, 2007
Summary
Physiotherapy departments sometimes exceed occupational exposure limits for electromagnetic fields. Microwave and short-wave diathermy devices pose risks, particularly near applicators and at close distances, requiring careful management of workplace safety.
Area of Science:
- Occupational Health and Safety
- Biomedical Engineering
- Electromagnetic Field (EMF) Exposure
Background:
- Physiotherapy utilizes various devices emitting electromagnetic fields (EMFs).
- Occupational exposure to EMFs in healthcare settings requires assessment.
- European Directive 2004/40/EC and ACGIH provide exposure limits.
Purpose of the Study:
- To evaluate occupational EMF exposure from microwave (MW), short-wave diathermy, and magneto therapy devices.
- To compare measured EMF levels with established European and ACGIH exposure limits.
- To identify specific devices and conditions contributing to potential over-exposure.
Main Methods:
- Conducted measurements in eight physiotherapy departments.
- Analyzed 11 MW, 4 short-wave diathermy, and 15 magneto therapy devices.
- Performed console measurements and environmental mapping of EMF levels.
Main Results:
- Exceeded European Directive and ACGIH limits at ~50 cm from MW applicators (2.45 GHz).
- Exceeded Directive magnetic field limit near diathermy units (27.12 MHz).
- EMF levels decreased with distance and power reduction for MW, but environmental factors like metal structures can cause reflections.
Conclusions:
- While most physiotherapy units have low EMF exposure, specific situations exceed occupational limits.
- Microwave and short-wave diathermy devices are primary sources of concern.
- Further investigation and control measures are needed to ensure worker safety in physiotherapy environments.
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