Exposure limits, bioeffect studies and storm days
Each point is one figure from a claim record in the register. Hover or tap a point for its record id. Points from records rated low confidence are drawn faded and dashed, and marked "low confidence".
1. Microwave exposure limits, 1957 to 2020
Log scale, W/m2 (1 mW/cm2 = 10 W/m2). Limits as each record states them: most are for bands that include 2.45 GHz, and some records give no band (marked in the hover text). Averaging times differ, from six minutes to 24 hours, and the dates are when each record places the limit, so read this for order of magnitude. Dashed lines are the 1978 SPS design levels (CLM-0020).
Table of the limits shown
2. Studies at or near 2.45 GHz: power density against exposure time
Both axes log scale. Total exposure time in hours across; power density in W/m2 up. Species, endpoints, set-ups and dosimetry all differ, so this is a map of what was tested, not a dose-response curve. A horizontal bar shows a range of exposure time. Three studies are near rather than at 2.45 GHz, and their hover text gives the frequency. Dashed lines are the 1978 SPS design levels (CLM-0020).
Table of the studies shown
3. Why storm days are 12 to 18 a year
NOAA's G-scale table gives storm days per average 11-year cycle for each class (CLM-1381; classes by Kp, CLM-1380). The table does not say whether a G3 count already includes G4 and G5 days, so a year has about 11.8 or about 17.6 storm days at G3 or above, and which is right is not known (CLM-0118).