News First year of Reiwa Sake brewing rice from Niigata Prefecture Radioactive material test results

2020/01/10

XNUMX. Survey and inspection method

  • Target area: 5 points in Niigata prefecture (Kaetsu East, Kaetsu West, Sado, Chuetsu, Joetsu)
  • Target varieties: "Gohyaku mangoku", "Takane Nishiki", "Koshitanrei" from Niigata prefecture, produced in the first year of Reiwa
  • Collection method: Brown rice is collected and analyzed at the time of harvest.
    Analytical organization: Niigata Prefectural Institute for Environmental Health
  • Analytical method: Gamma ray spectrum by germanium semiconductor detector
  • Target nuclides: radioactive iodine, radioactive cesium
  • Lower limit of quantification: 5Bq / kg (becquerel)
    (The lower limit of quantification is the minimum value that can be quantified by the analytical method and the minimum value that the analytical institution can prove based on the measurement.)

XNUMX, test results

"Gohyaku mangoku" from Niigata prefecture (produced in the first year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137
Kaetsu East 9/11 10/18 Not detected Not detected Not detected
Shimokoshi West 9/25 10/2 Not detected Not detected Not detected
Sado 9/5 10/10 Not detected Not detected Not detected
Chuetsu 10/3 10/17 Not detected Not detected Not detected
Joetsu 9/6 12/27 Not detected Not detected Not detected

* Not detected ... Indicates that the value is below the lower limit of quantification for each nuclide to be inspected.

"Takane Nishiki" from Niigata Prefecture (produced in the first year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137
Kaetsu East 9/18 12/20 Not detected Not detected Not detected
Shimokoshi West 9/5 10/2 Not detected Not detected Not detected
Sado 10/3 10/10 Not detected Not detected Not detected
Chuetsu 11/15 12/13 Not detected Not detected Not detected
Joetsu 10/21 12/27 Not detected Not detected Not detected

* Not detected ... Indicates that the value is below the lower limit of quantification for each nuclide to be inspected.

"Koshitanrei" from Niigata Prefecture (produced in the first year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137
Kaetsu East 10/01 12/20 Not detected Not detected Not detected
Shimokoshi West 9/23 10/2 Not detected Not detected Not detected
Sado 9/24 10/10 Not detected Not detected Not detected
Chuetsu 11/11 12/13 Not detected Not detected Not detected
Joetsu 10/9 12/27 Not detected Not detected Not detected

* Not detected ... Indicates that the value is below the lower limit of quantification for each nuclide to be inspected.