SAR Estimations in a Classroom with Wireless Computers
This study simulated 1 g and 10 g peak spatial SAR (psSAR) in classroom settings where each student uses a Wi‑Fi laptop at 2.45 GHz and 100 mW. Maximum simulated psSAR values were reported to be below ICNIRP and IEEE recommended limits, but desk spacing and multi-user configurations could substantially increase psSAR compared with a single-user setup. The authors emphasize that long-term low-level exposure, particularly for children, remains a concern and recommend mitigation via increased spacing and wired connections.
Key points
- Two classroom scenarios were simulated: several 7-year-old children and 43-year-old adults, each using a laptop.
- The study calculated 1 g and 10 g psSAR for the head, back, and hands.
- Maximum simulated psSAR values were reported as below ICNIRP and IEEE limits under the modeled conditions.
- Classroom multi-user arrangements were reported to amplify psSAR versus single-user setups (e.g., up to 26 dB in the back and 45-fold in the head).
- Increasing spacing between desks reduced psSAR (e.g., 10 cm increase associated with about a 13 dB reduction).
- psSAR hotspot locations shifted with desk distance due to electromagnetic field interactions.
- The authors recommend avoiding wireless communications in prolonged-occupancy areas and using wired connections to reduce exposure.
Referenced studies & papers
Relevant papers in OpenMel
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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