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Health Council of The Netherlands: no need to change from SAR to time-temperature relation in electromagnetic fields exposure limits

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Authors not listed · 2011

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Dutch health authorities chose to keep current EMF limits despite acknowledging ongoing scientific controversies about non-thermal biological effects.

Plain English Summary

Summary written for general audiences

The Health Council of the Netherlands examined whether electromagnetic field exposure limits should shift from measuring SAR (specific absorption rate) to measuring temperature increases. They concluded that maintaining current SAR-based limits is preferable and that changing the measurement approach wouldn't resolve scientific debates about non-thermal EMF effects.

Why This Matters

This position paper reveals how health authorities approach EMF regulation in 2011. The Health Council's conclusion to maintain SAR-based limits reflects the establishment view that only heating effects matter for EMF safety. What's telling is their admission that changing measurement methods won't resolve 'scientific controversies regarding non-thermal effects.' This acknowledgment that such controversies exist contradicts frequent claims that the science is settled. The reality is that SAR measurements, while useful for preventing acute heating, may not capture the biological effects that occur at power levels far below heating thresholds. Your smartphone operates at SAR levels orders of magnitude below what causes measurable heating, yet research continues to identify biological responses at these 'safe' exposure levels.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 10 MHz - 10 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 10 MHz - 10 GHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2011). Health Council of The Netherlands: no need to change from SAR to time-temperature relation in electromagnetic fields exposure limits.
Show BibTeX
@article{health_council_of_the_netherlands_no_need_to_change_from_sar_to_time_temperature_relation_in_electromagnetic_fields_exposure_limits_ce1866,
  author = {Unknown},
  title = {Health Council of The Netherlands: no need to change from SAR to time-temperature relation in electromagnetic fields exposure limits},
  year = {2011},
  doi = {10.3109/02656736.2010.534528},
  
}
DOI: 10.3109/02656736.2010.534528PubMed: 21591902

Quick Questions About This Study

They concluded that changing from SAR to temperature measurements wouldn't resolve scientific debates about non-thermal effects and that current SAR-based limits remain more practical and consistent for regulatory purposes.
The 10 MHz to 10 GHz frequency range uses SAR-based guidelines. This covers most wireless communication devices including cell phones, WiFi routers, and Bluetooth devices that operate within this spectrum.
The Health Council bases guidelines on avoiding adverse temperature effects at SAR levels above 4 W/kg for whole-body exposure, considering this the threshold where heating becomes potentially harmful.
The council acknowledges 'scientific controversies regarding the existence or non-existence of non-thermal effects' but maintains that only heating effects are scientifically established as causing adverse health consequences.
Current guidelines express basic restrictions as SAR (watts per kilogram) and reference levels in V/m (volts per meter) for electric fields or µT (microtesla) for magnetic fields.