Study type: Medical/biological study (experimental study)

Local vasodilator response to mobile phones med./bio.

By: Paredi P, Kharitonov SA, Hanazawa T, Barnes PJ
Published in: Laryngoscope 2001; 111 (1): 159-162
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Aim of study (acc. to author)

To investigate if a mobile telephone conversation can modify skin temperature, NO level, and nasal resistence.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 900 MHz
Modulation type: pulsed
Exposure duration: 30 min
-

Exposure 1

Main characteristics
Frequency 900 MHz
Type
Exposure duration 30 min
Modulation
Modulation type pulsed
Exposure setup
Exposure source
Setup The phone with its antenna pushed out was held in one hand and was located 3 cm from the ear.
Additional info Control subjects used an earpiece with the mobile phone (mobile phone switched off) 45 cm from the skin surface of the face.
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

Exposure to electromagnetic fields produced by a mobile phone produces biological effects that can be easily measured. Microwaves may increase skin temperature and therefore cause vasodilation and reduce minimal cross-sectional area.

Study character:

Study funded by

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