Physical units to report intensity of electromagnetic wave

Authors: R Ramirez-Vazquez, I Escobar, T Franco, E Arribas

Year: 2021 Nov 2

Category: Environmental Research

Journal: Environ Res

DOI: 10.1016/j.envres.2021.112341

URL: https://pubmed.ncbi.nlm.nih.gov/34740620/

Abstract

Overview

The study focuses on standardizing the measurement units for electromagnetic wave intensity, crucial in the context of electromagnetic field (EMF) exposure and its potential health risks.

Findings

  • The study proposes using W/m2 (watts per square meter) as the standard unit for reporting the intensity of electromagnetic waves instead of V/m (volts per meter).
  • It addresses the inconsistency in terms, advocating for "wave intensity" over "power flux density" to align better with physical principles.
  • A quadratic relationship between the electric field and intensity is highlighted, emphasizing the need for conversion calculations when using V/m, hence recommending W/m2 for its direct measure of intensity.

Conclusion

The recommendation to use W/m2 aims to enhance the accuracy and uniformity of EMF exposure measurement, supporting clearer and more effective monitoring of potential health implications associated with EMF exposure.

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