I have converted the table to mSv for you (originally in mV/m):
Macbook = 0
AirPort Extreme =0
iMac = 0
iPad = 0
Mac mini =0.
Ah. That was easy to convert.
Frequency is also important. High frequency energy (X-Rays, Gamma Rays, etc.) are much more damaging than low frequency. Radio waves are in the lowest frequency range of all. I'm acutally not an EE so I don't even know what the frequency of radiation is actually used for wireless charging, but I'm sure it's in the low end of the spectrum, partly because it can only be done up close. And I don't even see a number for a wireless inductive charger. Do you have a wireless charging electric toothbrush?
Frequency happens to be the *only* thing important here. EM radiation can cause cancer in two ways:
1. Either directly damaging the DNA chain (a high-energy photon excites an electron in the chain, which gets released, and the chain changes conformation or can't be replicated without error).
2. A high-energy photon excites a hydrogen atom in a water molecule, which gets released, creating a reactive oxygen species (a OH⁻ molecule) and a free hydrogen atom (H⁺). This reactive species will bind to almost anything. If it binds to a DNA chain, it will be malformed, and errors could happen during replication, same as above (interestingly, most of the damage induced by radiation happens this way, not directly).
You need photons with an energy of about 1eV (electron-volt) to take an elecron away from a water molecule. We call radiation composed of photons with this kind of energy (or more) ionizing radiation. The highest possible frequency an Apple product could emit is at 6GHz, equivalent to 0.00000046 eV, which is non-ionizing.
You could argue
well, if enough photons hit an electron, it could reach enough energy to get detached from the molecule. But this happens to be impossible*. Electronic energy levels are quantized: that is, electrons have to be at specific energy levels. If a photon hits an electron at a certain energy level but doesn't carry enough energy to promote the electron to the next energy level,
nothing happens. It can't be between two energy levels.
Well, something
can happen. The whole atom can absorb some
kinetic energy from the photon (this is a different process than the one above) and release a photon with even less energy (longer wavelength), but the molecular structure remains totally unchanged. It simply moves faster, which in a macromolecular level we describe as 'heating'. But a lot of things can heat your body tissues (heat, for instance), and none of them is known to cause cancer.
----------------
(*) There's a process called two-photon absorption, in which two photons are absorbed by the electron at the exact same time, and their energies are added. This is why radiation just below the 1eV threshold (i.e. UV light on the lower end of the spectrum) can still potentially ionize an atom. However, the probability of two-photon absorption is about a hundred times less likely than single-photon absorption. Make that 10,000 times less likely for three-photon absorption. For a 6GHz frequency to ionize an atom, you would need two million photons to be absorbed at the exact same time by the exact same atom. Which is, indeed, impossible.
www.macintoshhowto.com
