Fig. 5: Ranked distribution showing the relative proportion of the ionizing radiation dose to honeybees from 137Cs contamination to background potassium radiation (40K) using external dose coefficients43 and measurements of these radionuclides in 122 honey samples.
From: Bomb 137Cs in modern honey reveals a regional soil control on pollutant cycling by plants
Dose coefficients are used to convert measured radionuclide activities per mass to dose rates in units of micro (μ, 10−6) Grays (Gy) per hour (hr).
