Radiofrequency field exposure assessment: a pilot study on mobile phone signal strength and transmitted power levels

Authors: Brzozek C, Zeleke BM, Abramson MJ, Benke KK, Benke G

Year: 2019 Oct 22

Category: Epidemiology

Journal: J Expo Sci Environ Epidemiol

DOI: 10.1038/s41370-019-0178-6

URL: https://www.nature.com/articles/s41370-019-0178-6

Abstract

Overview

In this pilot study, the focus is on mobile phone use as an exposure proxy for radiofrequency electromagnetic fields (RF-EMF), emphasizing the vulnerabilities in measurement that existing methodologies present.

Findings

  • The study utilized the Qualipoc android phone to measure Received Signal Strength Indicator (RSSI), Reference Signal Received Power (RSRP), Received Signal Code Power (RSCP), and Transmit (Tx) Power across 3G and 4G networks.
  • Data collected in the greater Melbourne area indicated diverse signal strength levels and detailed the relationships between different signal indicators and Tx power. Notably, strong negative correlations were observed, demonstrating a significant rise in Tx Power as signal strength decreased.
  • Correlation Coefficients: 3G (RSSI -0.93, RSCP -0.93), 4G (RSSI -0.85, RSRP -0.87).

Conclusion

The pilot study highlights the importance of accounting for signal strength in studies to effectively minimize RF-EMF exposure assessment errors. Recommendations are provided for improving measurement accuracy in future research, including using signal strength and Tx power as critical data points due to their significant correlation and impact on understanding EMF exposure levels and potential health risks.

RF-EMF exposure mobile phone signal strength Tx power epidemiological studies electromagnetic field
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