Journalist Kinoshita Kota conducted measurements for house dust in Tokyo, Chiba, Ibaraki, and Aichi.
As a result, no wonder, it turned out that cesium has gotten into the houses already.
Setagaya Tokyo
Soil
- Cs-134 = 255.7 Bq/kg
- Cs-137 = 290.2 Bq/kg
- Total = 545.9 Bq/kg
House dust
- Cs-134 = 662.57 Bq/kg
- Cs-137 = 771.81 Bq/kg
- Total = 1,434.38 Bq/kg
Tama Tokyo
Soil
- Cs-134 = 88.1 Bq/kg
- Cs-137 = 122.3 Bq/kg
- Total = 210.4 Bq/kg
House dust
- Cs-134 = 808 Bq/kg
- Cs-137 = 922 Bq/kg
- Total = 1,730 Bq/kg
Hitachi Ibaraki
Soil
- Cs-134 = 348.98 Bq/kg
- Cs-137 = 401.37 Bq/kg
- Total = 750.35 Bq/kg
House dust
- Cs-134 = 3,216.58 Bq/kg
- Cs-137 = 3,048.16 Bq/kg
- Total = 6,264.74 Bq/kg
Yachiyo Chiba
Soil
- Cs-134 = 674.99 Bq/kg
- Cs-137 = 912.73 Bq/kg
- Total = 1,587.72 Bq/kg
House dust
- Cs-134 902.68 Bq/kg
- Cs-137 657.27 Bq/kg
- Total = 1,559.95 Bq/kg
Kariya Aichi
Soil
- Cs-134 = ND
- Cs-137 = ND
House dust
- Cs-134 = ND
- Cs-137 = ND
Measured by NAI scintillation.
(Source)