Power levels are only one metric. They do not take into effect the nature of digital signals and the information carried on their pulsed modulations, any and all of which may be biologically hazardous. Neither do that take account of the compounding effects of multiple EMR sources and chemicals. The recommendations of the Bioinitiative Report are good but interpreting over 600 pages when deciding whether to use the electric cooker (hob/range) or a microwave oven is beyond most people when it comes to feeding the family. (See the Bioinitiative Report page 587 for recommendations).
But rather like knowing how many million/billion/trillion bacteria exist in a cubic metre of air, knowing precise electrosmog levels is not entirely necessary if one is determined to keep exposure As Low As Reasonably Achievable - ALARA. Later, when peoples tolerance has been all used up and they are forced to flee or turn and face ‘The Electrosmog Dragons’ in their midst, thoughts are liable to spin out of control, whether-or-not-this-is-serious-and-if-so-how-to-best-deal-with-a-new-and-invisible-threat-that-seems-to-be-everywhere….Aghhhhhhh !