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

ABSTRACT: Prolonged exposure to weak (~1 ?T) extremely-low-frequency (ELF, 50/60 Hz) magnetic fields has been associated with an increased risk of childhood leukaemia. One of the few biophysical mechanisms that might account for this link involves short-lived chemical reaction intermediates known as radical pairs. In this report, we use spin dynamics simulations to derive an upper bound of 10 parts per million on the effect of a 1 ?T ELF magnetic field on the yield of a radical pair reaction. By comparing this figure with the corresponding effects of changes in the strength of the Earth's magnetic field, we conclude that if exposure to such weak 50/60 Hz magnetic fields has any effect on human biology, and results from a radical pair mechanism, then the risk should be no greater than travelling a few kilometres towards or away from the geomagnetic north or south pole.

SUBMITTER: Hore PJ

PROVIDER: S-EPMC6417859 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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

Hore P J PJ

eLife 20190225

Prolonged exposure to weak (~1 μT) extremely-low-frequency (ELF, 50/60 Hz) magnetic fields has been associated with an increased risk of childhood leukaemia. One of the few biophysical mechanisms that might account for this link involves short-lived chemical reaction intermediates known as radical pairs. In this report, we use spin dynamics simulations to derive an upper bound of 10 parts per million on the effect of a 1 μT ELF magnetic field on the yield of a radical pair reaction. By comparing ...[more]

PMID: 30801245

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