Live in 7 floor apartment building directly above electrical room for entire building and old elevator. Noticed static electricity or excessive charge and have been investigating. Measured EMF clocking in at around 78 Microtesla right above flooring.
What should I have an expert do to confirm? Is this dangerous? Can being above electric room spread EMF to unit?
You are about 5 orders of magnitude (100000 fold) below the fields used in an MRI machine. These are the ones they're quite happy to use to image healthy people. Contrast this with Xray machines, where images are strictly only for the sick because of the health risks. You can totally forget it as a health issue.
In fact you should totally forget it as a health issue, because worrying about it could damage your health.