Estimating transmitted power density from mobile phone: an epidemiological pilot study with a software modified phone

Area of Science:

• Environmental Health
• Biophysics
• Mobile Technology

Background:

• Mobile phone (MP) use is widespread, raising concerns about potential radiofrequency-electromagnetic field (RF-EMF) exposure.
• Quantifying personal RF-EMF exposure accurately is crucial for epidemiological studies.
• Existing methods for exposure assessment may be limited in scope or practicality.

Purpose of the Study:

• To evaluate cumulative weekly and annual RF-EMF exposure from MP usage.
• To assess the feasibility of using the novel Quanta Monitor™ app for characterizing MP RF-EMF exposures.
• To compare transmitted versus received power densities associated with different MP usage modes.

Main Methods:

• Ten participants provided two months of objective, daily MP exposure data (transmitted and received power densities).
• Data collection encompassed various MP usage modes: cellular calls, cellular data, and Wi-Fi.
• The Quanta Monitor™ app was utilized to record and characterize these exposures.

Main Results:

• Total transmitted power density from MP use (calls, data, Wi-Fi) was significantly higher than total received power density.
• Cellular data usage constituted the largest component of the total transmitted power density.
• The Quanta Monitor™ app demonstrated utility in characterizing MP RF-EMF exposures.

Conclusions:

• The Quanta Monitor™ app is a viable tool for prospective assessment of MP RF-EMF exposures in epidemiological research.
• Understanding the differential contribution of transmitted vs. received power densities is important for exposure assessment.
• This study provides foundational data on RF-EMF exposure patterns associated with modern mobile phone usage.