Executive Summary
This report details a Radiofrequency (RF) Exposure Assessment conducted on May 24, 2017, for a building in Canton, MI. The assessment was requested by the building owner due to occupant concerns about RF exposure from rooftop cellular antennas.
Consequently, our team performed comprehensive electromagnetic field (EMF) and radiofrequency (RF) measurements on the rooftop near the antennas and throughout all three occupied floors.
Based on our analysis, the results conclusively indicate that building occupants are not exposed to excessive levels of radiofrequency radiation. Therefore, the measured values are all significantly below the established safety limits.
EMF Testing Report
Radiofrequency Exposure Limits
The Federal Communications Commission (FCC) sets enforceable exposure levels for RF radiation. Furthermore, other consensus organizations like ICNIRP and IEEE have published nearly identical recommended RF exposure limits, as illustrated in the table below.
MAXIMUM PERMISSIBLE EXPOSURE (MPE) Limits for General Population/Uncontrolled Exposure
| Frequency Range (MHz) | Max Power Density (S) | Averaging Time (minutes) |
|---|---|---|
| 1500-100,000 (includes cellular 700-2000 MHz) | 1.0 mW/cm² or 10 W/m² | 30 |
According to the FCC, the General Population/Uncontrolled Exposure category applies to situations where the public may be exposed without their knowledge or control. Similarly, the ICNIRP guidelines define a “General Population” tier with restrictive, whole-body, time-averaged exposure limits for electric and magnetic fields that are very similar to the FCC’s.
Finally, the IEEE C95.1–2005 standard also expresses its safety levels in terms of Maximum Permissible Exposure (MPE), providing a consistent framework for evaluation across all guidelines.