What are EMFs >
Are EMFs radiation?
“Radiation” has two different meanings – and
neither of them applies to power-frequency EMFs.
One use of radiation is to refer to ionising radiation –
x-rays, gamma rays, alpha and beta particles, and so on. They are
called “ionising” because they have enough energy to
break chemical bonds – that is how they do damage to the body.
EMFs do not have anything like enough energy to break bonds and
they are not radiation in this sense. More
on interactions between EMFs and the body
The other use of radiation is the refer to electromagnetic waves
where the electric and magnetic fields are coupled together and
propagate through space. EMFs are, of course, part of the same electromagnetic
spectrum. But whether you get radiation depends basically on the
frequency. At high frequencies – radio waves, TV, microwaves
etc – the fields are coupled together and you get radiation.
But at lower frequencies, such as power frequencies, you get separate
electric fields and magnetic fields, and radiation is normally negligible.
So the simple answer is no, EMFs at power frequencies are not radiation.
For a more scientific discussion of frequencies and radiation,
see our tutorial on fields
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