News Reiwa 2nd year Sake brewing rice from Niigata Prefecture Radioactive material test results

2021/01/07

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 2rd 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 (2rd year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137

Kaetsu East

10/01

10/07

Not detected

Not detected

Not detected

Shimokoshi West

9/7

10/1

Not detected

Not detected

Not detected

Sado

9/19

10/8

Not detected

Not detected

Not detected

Chuetsu

10/6

10/13

Not detected

Not detected

Not detected

Joetsu

9/12

12/15

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 (2rd year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137

Kaetsu East

10/1

10/7

Not detected

Not detected

Not detected

Shimokoshi West

9/8

10/1

Not detected

Not detected

Not detected

Sado

9/15

10/8

Not detected

Not detected

Not detected

Chuetsu

11/2

11/11

Not detected

Not detected

Not detected

Joetsu

9/18

12/15

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 (2rd year of Reiwa)

Inspection area Collection date Proof date Radioactive iodine Radioactive cesium
I-131 CS-134 CS-137

Kaetsu East

9/27

10/13

Not detected

Not detected

Not detected

Shimokoshi West

9/19

10/1

Not detected

Not detected

Not detected

Sado

9/30

10/8

Not detected

Not detected

Not detected

Chuetsu

12/15

12/23

Not detected

Not detected

Not detected

Joetsu

9/23

12/15

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.

Please see here for the radioactivity test of sake rice produced in the first year of Reiwa.