Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Absence of short-term effects of UMTS exposure on the human auditory system.
Parazzini M, Lutman ME, Moulin A, Barnel C, Sliwinska-Kowalska M, Zmyslony M, Hernadi I, Stefanics G, Thuroczy G, Ravazzani P. · 2010
View Original AbstractTwenty minutes of 3G radiation at high levels caused no immediate hearing damage in this controlled study.
Plain English Summary
Researchers exposed 73 healthy adults to 3G cell phone radiation (UMTS) at 1.75 W/kg SAR for 20 minutes and tested their hearing function before and after exposure. They found no measurable effects on hearing thresholds, inner ear function, or brain responses to sound. This suggests that short-term exposure to 3G radiation at levels similar to heavy phone use doesn't immediately damage the auditory system.
Why This Matters
This study provides reassuring evidence that 3G phone radiation doesn't cause immediate hearing damage, even at relatively high exposure levels. The SAR of 1.75 W/kg used here is close to the 2 W/kg regulatory limit and represents heavy phone use scenarios. However, this research only examined short-term effects over 20 minutes. The reality is that most people use phones for years or decades, and we still lack comprehensive data on long-term auditory effects from chronic RF exposure. While this study suggests your hearing won't suffer from a single long phone call, it doesn't address whether cumulative exposure over time might pose risks. The science demonstrates that immediate effects are unlikely, but the question of long-term safety remains open.
Exposure Details
- SAR
- 1.75 W/kg
- Source/Device
- 1947 MHz
- Exposure Duration
- 20-min
Exposure Context
This study used 1.75 W/kg for SAR (device absorption):
- 4.4x above the Building Biology guideline of 0.4 W/kg
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
The aim of this study, which was performed in the framework of the European project EMFnEAR, was to investigate the potential effects of Universal Mobile Telecommunications System (UMTS, also known as 3G) exposure at a high specific absorption rate (SAR) on the human auditory system
Participants were healthy young adults with no hearing or ear disorders. Auditory function was asse...
Results from 73 participants did not show any consistent pattern of effects on the auditory system a...
It is concluded that short-term UMTS exposure at this relatively high SAR does not cause measurable immediate effects on the human auditory system.
Show BibTeX
@article{m_2010_absence_of_shortterm_effects_3295,
author = {Parazzini M and Lutman ME and Moulin A and Barnel C and Sliwinska-Kowalska M and Zmyslony M and Hernadi I and Stefanics G and Thuroczy G and Ravazzani P. },
title = {Absence of short-term effects of UMTS exposure on the human auditory system.},
year = {2010},
url = {https://meridian.allenpress.com/radiation-research/article-abstract/173/1/91/42968/Absence-of-Short-Term-Effects-of-UMTS-Exposure-on},
}