Upper bound on the biological effects of 50/60 Hz magnetic fields mediated by radical pairs

Authors: Hore PJ

Year: 2019 Feb 25

Category: Biophysics

Journal: Elife

DOI: 10.7554/eLife.44179

URL: https://elifesciences.org/articles/44179

Abstract

Abstract Summary

Overview

Prolonged exposure to weak (~1 µT) extremely-low-frequency (ELF, 50/60 Hz) magnetic fields is a concern due to its potential association with increased risk of childhood leukemia.

Findings

  • This study focuses on radical pairs as a possible biophysical mechanism linking ELF magnetic fields to biological effects.
  • Using spin dynamics simulations, the study provides an upper bound effect of ELF magnetic fields on radical pair reactions, quantified as 10 parts per million for a 1 µT field.
  • The comparison of these effects with natural variances in the Earth's magnetic field suggests minimal risk, equating it to minor geographic movements on Earth.

Conclusion

If the connection between ELF magnetic fields and childhood leukemia operates through radical pair mechanisms, the implied risk is notably low, comparable to small geographic shifts.

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