News Reiwa 5nd year Sake brewing rice from Niigata Prefecture Radioactive material test results

June 20, 2023

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 5rd 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 (5rd year of Reiwa)

Inspection area Collection / submission date Proof date Radioiodine (5Bq / kg) Radioactive cesium (5Bq / kg)
I-131 CS-134 CS-137

Kaetsu East

Early November

11 April

Not detected

Not detected

Not detected

Shimokoshi West

9 April

10 April

Not detected

Not detected

Not detected

Sado

8 April

10 April

Not detected

Not detected

Not detected

Chuetsu

10 April

10 April

Not detected

Not detected

Not detected

Joetsu

10 April

12 April

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 (5rd year of Reiwa)

Inspection area Collection / submission date Proof date Radioiodine (5Bq / kg) Radioactive cesium (5Bq / kg)
I-131 CS-134 CS-137

Kaetsu East

Late September

10 April

Not detected

Not detected

Not detected

Shimokoshi West

9 April

10 April

Not detected

Not detected

Not detected

Sado

8 April

10 April

Not detected

Not detected

Not detected

Chuetsu

11 April

11 April

Not detected

Not detected

Not detected

Joetsu

11 April

12 April

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 (5rd year of Reiwa)

Inspection area Collection / submission date Proof date Radioiodine (5Bq / kg) Radioactive cesium (5Bq / kg)
I-131 CS-134 CS-137

Kaetsu East

Late September

10 April

Not detected

Not detected

Not detected

Shimokoshi West

9 April

10 April

Not detected

Not detected

Not detected

Sado

9 April

10 April

Not detected

Not detected

Not detected

Chuetsu

11 April

11 April

Not detected

Not detected

Not detected

Joetsu

11 April

12 April

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.

Click here for information on radioactivity testing of sake rice produced in 2022.