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Measurements in village stations

Results for May 20th, 2012 - Average for the day

CategoryGréville DigullevilleBeaumontHerquevilleJobourg
Alpha activity (mBq/m3)< 1.6< 1.4< 1.1< 1.7< 1.1
Beta activity (mBq/m3)< 170 < 110< 170< 100< 100
External irradiation (nGy/h)841307512091
Radon (mBq/m3)6 100 5 400 5 800 5 500 5 200
Gas excluding Tritium* (Bq/m3)12016077 15 00052
  • Dust radioactivity is given in millibecquerel per m3.
  • Irradiation is given in nanogray per hour.
  • The natural radioactivity of radon 220 is the basis of the natural radioactivity of radon 222 and its daughter products are not taken into account in these measurements.
  • Given the geological factors and the difference in altitudes, background irradiation in France varies from one region to another, between 10 and 250 nGy/h.

* Continuous measurement of gas activities in exterior stations carried out with a monitor where the measurement setpoint is 50Bq/m3

location of 5

location of 5 "village stations"

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