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Updated: May 12, 2026

Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band
Published on: May 2, 2018
Is the effect of mobile phone radiofrequency waves on human skin perfusion non-thermal?
Nathalie Loos1, György Thuróczy, Rania Ghosn
1PériTox Laboratory (EA 4285-UMI01), Faculty of Medicine, Jules Verne University of Picardy, Amiens, France.
Objective:
To establish whether SkBF can be modified by exposure to the radiofrequency waves emitted by a mobile phone when the latter is held against the jaw and ear.
Methods:
Variations in SkBF and Tsk in adult volunteers were simultaneously recorded with a thermostatic laser Doppler system during a 20-minute "radiofrequency" exposure session and a 20-minute "sham" session. The skin microvessels' vasodilatory reserve was assessed with a heat challenge at the end of the protocol.
Results:
During the radiofrequency exposure session, SkBF increased (vs. baseline) more than during the sham exposure session. The sessions did not differ significant in terms of the Tsk time-course response. The skin microvessels' vasodilatory ability was found to be greater during radiofrequency exposure than during sham exposure.
Conclusions:
Our results reveal the existence of a specific vasodilatory effect of mobile phone radiofrequency emission on skin perfusion.
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