Announcements Reiwa 5nd year Sake brewing rice from Niigata Prefecture Radioactive material test results
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 August |
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.