Table 1 Radioactivity of four CsMPs described in the present study.

From: Isotopic signature and nano-texture of cesium-rich micro-particles: Release of uranium and fission products from the Fukushima Daiichi Nuclear Power Plant

Sample Particle size (μm) Radioactivity of 134Cs (Bq) Radioactivity of 137Cs (Bq) Ratio of 134Cs/137Cs radioactivity
OTZ3 <17.3 401(±3.7) 379(±1.5) 1.06
OTZ10 2.2 1.85(±0.080) 1.94(±0.031) 0.955
OMR1 <5.2 21.5(±0.50) 20.3(±0.19) 1.06
KOI2 <4.4 18.2(±0.16) 16.8(±0.05) 1.08
  1. The radioactivity was decay-corrected to March 12, 2011, 15:36 JST. The uncertainties in the radioactivity analyses are given in the parenthesis. The particle size was measured using the SEM image.
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