WEB-033Original text reviewed
60 GHz: skin-model injury thresholds and the limits of averaging
The reported finding
Skin-model damage threshold: 180–250 mW/cm² in standard conditions, 130–150 mW/cm² in hot/humid conditions. Local injury could be obscured by whole-sample absorbance.
Reading it carefully
Institutional original technical report. Deliberate thermal-injury experiment; damage appeared near surface temperatures above 50°C. Thresholds do not describe ordinary communications exposure.
Inside the study
Technology connection
60 GHz-region or adjacent-band biology; not an experiment with a WiGig device and not evidence of an oxygen-deprivation mechanism.
Publication type
Original institutional technical report
Exposure conditions
60 GHz for 6 min; reconstructed tissue models at 33°C/50% RH or 42.5°C/80% RH.
Design & controls
Human-cell three-dimensional skin/corneal models; focused exposure, temperature monitoring and image-based MTT viability assessment.
Statistics
See the original results; effect sizes were not independently recalculated.
Related research & shared cohorts
Companion Japanese programme to the 2024 rabbit-eye study; different biological model. Related publication records: WEB-032.
The protection question raised
Which exposure conditions reproduce this finding, and what would establish its relevance beyond the experimental model?
Source verification
Original methods/results and interpretation reviewed; raw data and supplements were not independently audited.
Where to find the result
Original methods and results
Editorial notices
Linked Europe PMC/PubMed notice fields checked 21 October 2026; no correction/retraction surfaced for this record. Publisher/citation screening is not exhaustive.
Funding
Commissioned by Japan’s Ministry of Internal Affairs and Communications.
Conflicts of interest
See original disclosure; no independently verified conflict assessment.
Original publication
Masateru Ikehata; Sachiko Yoshie; Yukihisa Suzuki; Hiroshi Sasaki. Evaluation of Cytotoxicity Threshold Induced by Thermal Effects of Millimeter-wave Electromagnetic Fields. Quarterly Report of RTRI. 2026. doi:10.2219/rtriqr.67.2_81.