Radiation Measurement Results of 170 Items in March
When samples include natural radionuclides we can't deny the possibility of their radiation value counted
together in our results.
The list below only shows the measurement results of the samples brought in.
Radioactive contamination level may differ according to sampling points even within the same address.

★Gamma-ray
Measuring instrument
Product of ATOMTEX AT1320A

FeatureNaI Scintillation Spectrometer
Product of BERTHOLD LB2045 ・Gamma-ray spectrometerwith NaI scintillation detector.

Guide to lower limit※
Food（Sample 1㎏）Lower limit

1.0Bq/Kg

Soil（Sample 1㎏）Lower limit

2.5Bq/Kg

Lower limit

1.0Bq/Kg

Water（Sample 20L）
Lower kimit

0.02Bq/L

Germanium Semiconductor detector
・Radioactivity measurement series.

Food（Sample 2㎏）Lower limit

0.04Bq/Kg

Quantitative analysis based on "Gamma-ray

Soil（Sample 1㎏）Lower limit

0.06Bq/Kg

spectrometry with germanium semiconductor detector."

Material（Sample 1㎏）

Lower limit

0.06Bq/Kg

・Relative efficiency 35％

Water（Sample 20L）
Lower limit

0.001Bq/L

Material（Sample 1㎏）

ORTEC

GEM30-70※The lower limit varies depending on the sample weight and measurement time.

Measuring instrument：NaI Scintillation Spectrometer(Bq/kg raw:Weight of raw sample

Bq/kg dry:Weight of dried sample)

Sampling Point Sampling Month Measurement Result Uncertainty Total Amount of Cesium Minimum Limit of Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.9 Bq/kg raw
Limit of
Brown rice
Akita
Oct-19
Cs134
Cs134 0.8 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 1.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Limit of
Chosei,Chiba
Rice
Oct-19
Cs134
Cs134 0.9 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.9 Bq/kg raw
Shinti,Soma,
Limit of
Glutinous rice
Oct-19Fukushima
Cs134
Cs134 0.8 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.5 Bq/kg raw
Limit ofPotatoHokkaido
Feb-20
Cs134
Cs134 1.3 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.6 Bq/kg raw
Iidate,Soma,
Limit ofPotatoMar-20Fukushima
Cs134
Cs134 1.5 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.7 Bq/kg raw
Limit of
Taro
Joban,Iwaki
Mar-20
Cs134
Cs134 1.6 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.3 Bq/kg raw
Nihonmatsu,
Limit of
CarrotMar-20Fukushima
Cs134
Cs134 1.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.1 Bq/kg raw
Japanese white
Limit of
Tomitsu,Iwaki
Mar-20radishCs134
Cs134 1.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.1 Bq/kg raw
Limit of
Spicy radish
Gunma
Feb-20
Cs134
Cs134 1.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.5 Bq/kg raw
Iidate,Soma,
Limit of
Turnip(pulp)
Mar-20Fukushima
Cs134
Cs134 1.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.8 Bq/kg raw
Iidate,Soma,
Limit of
Turnip (leaf)
Mar-20Fukushima
Cs134
Cs134 2.1 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.6 Bq/kg raw
Limit of
Turnip(pulp)
Chiba
Mar-20
Cs134
Cs134 1.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.8 Bq/kg raw
Limit of
Turnip (leaf)
Chiba
Mar-20
Cs134
Cs134 2.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.2 Bq/kg raw
Limit of
CucumberGunma
Mar-20
Cs134
Cs134 1.1 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Samples※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

1

★Gamma-ray(Bq/kg raw:Weight of raw sample

Bq/kg dry:Weight of dried sample)

Sampling Point Sampling Month Measurement Result Uncertainty Total Amount of Cesium Minimum Limit of Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.3 Bq/kg raw
Limit ofEggplant
Kochi
Mar-20
Cs134
Cs134 1.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Nakajima,
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.2 Bq/kg raw
Nishishirakawa,
Limit ofLettuceFeb-20
Cs134
Cs134 1.7 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Fukushima
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.3 Bq/kg raw
Fukushima,
Limit ofGreen onion
Mar-20Fukushima
Cs134
Cs134 1.7 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.6 Bq/kg raw
Limit ofBroccoli
Kaneyama,Iwaki Feb-20
Cs134
Cs134 1.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.2 Bq/kg raw
Iidate,Soma,
Limit of
SpinachMar-20Fukushima
Cs134
Cs134 1.8 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.4 Bq/kg raw
Nihonmatsu,
Limit of
SpinachMar-20Fukushima
Cs134
Cs134 1.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.1 Bq/kg raw
Limit of
SpinachTomitsu,Iwaki
Mar-20
Cs134
Cs134 1.9 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.6 Bq/kg raw
Japanese
Asahi,Kashima,
Limit ofMar-20mustard spinach
Ibaraki
Cs134
Cs134 1.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 10.5 Bq/kg raw ± 2.9 Bq/kg raw
Cs137 3.0 Bq/kg raw
Garland
Iidate,Soma,
Mar-20chrysanthemum
Fukushima
Cs134
Cs134 2.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.8 Bq/kg raw
Limit ofQing-geng-cai
Tono,Iwaki
Mar-20
Cs134
Cs134 1.7 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 2.6 Bq/kg raw ± 1.3 Bq/kg raw
Cs137 2.0 Bq/kg raw
Fukushima,
Kaburena
Mar-20Fukushima
Cs134
Cs134 1.9 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.3 Bq/kg raw
Iidate,Soma,
Limit of
Canola flower
Mar-20Fukushima
Cs134
Cs134 1.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.3 Bq/kg raw
Limit of
Canola flower
Tono,Iwaki
Mar-20
Cs134
Cs134 2.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 4.1 Bq/kg raw
Limit ofCelery(leaves)
Aichi
Mar-20
Cs134
Cs134 3.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 1.4 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Limit ofCelery(stem)
Aichi
Mar-20
Cs134
Cs134 1.3 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 3.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Adachi,
Limit of
Chives
Feb-20Fukushima
Cs134
Cs134 3.1 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 7.7 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Nihonmatsu,
Limit of
PerillaFeb-20Fukushima
Cs134
Cs134 5.9 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 5.1 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Limit of
PerillaIbaraki
Feb-20
Cs134
Cs134 4.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 2.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Nihonmatsu,
Limit ofJapanese parsleyMar-20Fukushima
Cs134
Cs134 1.8 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 6.6 Bq/kg raw ± 3.9 Bq/kg raw
Cs137 3.6 Bq/kg raw
Dried JapaneseNihonmatsu,
Dec-19white radish
Fukushima
Cs134
Cs134 2.7 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 4.0 Bq/kg raw
Dried stems
Limit ofIwaki
Dec-19of taroCs134
Cs134 3.0 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Shonai,
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.4 Bq/kg raw
Higashitagawa,
Limit of
Ostrich ferm
Mar-20
Cs134
Cs134 1.8 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Yamagata
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 2.9 Bq/kg raw
Limit of
Butterbur sprout
Iwaki
Mar-20
Cs134
Cs134 2.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 5.5 Bq/kg raw
Limit of
Butterbur sprout Tomitsu,Iwaki
Mar-20
Cs134
Cs134 4.2 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Samples

10.5

2.6

6.6

※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

2

★Gamma-ray(Bq/kg raw:Weight of raw sample
Sampling Month Measurement

Samples

Sampling Point

Butterbur sprout

Iritono,Tono,
Iwaki

Mar-20Chili pepper(dried)Iidate,Soma,
Fukushima

Mar-20Shitake mushroom
grown
in bacteria-bed

Nihonmatsu,
Fukushima

Mar-20

Shimeji mushroom

IbarakiMar-20Strawberry

Kagamiishi,
Ishikawa,
Fukushima

Mandarin orange Gamagori,Aichi

Mar-20Feb-20Tairashimoyamaguchi,
Iwaki

Mar-20

Boar・female(meat）

Enayabukura,
Iwaki

Mar-20

Boar・female(liver）

Enayabukura,
Iwaki

Mar-20

Boar・male(meat）

Enayabukura,
Iwaki

Mar-20

Boar・male(heart,liver）

Enayabukura,
Iwaki

Mar-20

Boar・female(meat）

Enakitaguchi,
Iwaki

Mar-20

Boar・female(heart,liver）

Enakitaguchi,
Iwaki

Mar-20

Mulberry leaves（dried tea leaves)

Nihonmatsu,
Fukushima

Mar-20Boar(meat)

Green soybean
Rice miso
Rice misoSoma,Fukushima

Mar-20Minamisoma,
Fukushima

Mar-20

Iwaki

Mar-20

Salt-marinatedrice malt

Japan(production)

Mar-20

Roasted laverJapan(production)

Feb-20Gunma

Mar-20Vienna sausage
Flour
Buckwheat flour
Tempura flour
Bran

Japan
(production)

Mar-20

Iidate,Soma,
Fukushima

unknown

Matsumoto,
NaganoFeb-20

Iwaki

Mar-20Result

6.1
Cs134―
Cs137 6.6
Cs134―
Cs137 5.2
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137 200.0
Cs134 15.7
Cs137 50.7
Cs134―
Cs137 16.7
Cs134―
Cs137 26.2
Cs134―
Cs137 6.0
Cs134―
Cs137 34.6
Cs134―
Cs137 16.0
Cs134―
Cs137 11.2
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs134
―
Cs137
―
Cs137

Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134

―
―
4.5
―
―
―
―
―

Uncertainty± 3.5
Bq/kg raw
± ―Bq/kg raw

± 4.2
Bq/kg raw
± ―Bq/kg raw

± 1.5
Bq/kg raw
± ―Bq/kg raw―
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 40.0
Bq/kg raw
± 3.2
Bq/kg raw
± 10.1
Bq/kg raw
± ―Bq/kg raw
± 3.6
Bq/kg raw
± ―Bq/kg raw
± 5.2
Bq/kg raw
± ―Bq/kg raw
± 1.6
Bq/kg raw
± ―Bq/kg raw
± 6.9
Bq/kg raw
± ―Bq/kg raw
± 3.4
Bq/kg raw
± ―Bq/kg raw
± 3.7
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 1.8
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw±※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

3

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

Bq/kg dry:Weight of dried sample)

Total Amount of Cesium Minimum Limit of Detection

6.1

Cs137

6.6

Cs137

5.2

Cs137

Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection

Cs137

215.7

Cs137

50.7

Cs137

16.7

Cs137

26.2

Cs137

6.0

Cs137

34.6

Cs137

16.0

Cs137

11.2

Cs137

Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection

Cs137

4.5

Cs137

Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection

Cs137

Cs134
Cs134
Cs134
Cs134
Cs137
Cs134
Cs137
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs134
Cs134
Cs137
Cs134

4.6
3.4
5.5
4.2
1.7
1.3
2.3
1.8
1.6
1.5
1.1
1.0
1.3
1.2
1.6
1.4
1.8
1.5
1.7
1.5
1.5
1.4
1.4
1.1
1.6
1.4
4.0
3.1
1.6
1.6
0.9
0.9
0.9
0.9
0.7
0.6
6.9
5.3
1.1
1.1
1.6
1.5
1.7
1.2
1.6
1.4
1.7
1.5

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

★Gamma-ray
Samples
Sake lees
KonjacKonjacKonjacSoy milk(soy:Canada,America)

Blueberry honeyTomato juice
Pudding
Potato chips(Bq/kg raw:Weight of raw sample

Sampling Point
Fukaya,Saitama
Gunma

Sampling Month MeasurementFeb-20Mar-20Japan(production)

Jan-20Japan(production)

Mar-20Chiba

Mar-20Japan(production)

unknown

Taito-ku,Tokyo

Mar-20Aichi
Date,Fukushima

Mar-20Mar-20Japan(production)

unknown

Yellow pickled
radishJapan(production)

Mar-20Dried udon

Shiraishi,
Miyagi

2019年

Dried udon
(rice flour)

Iwaki

Nov-19Bread

Chiyoda-ku,
Tokyo

Mar-20

Tamura,Fukushima

Mar-20

Namie,Futaba,
Fukushima

Mar-20Onahamafukimatsu,
Iwaki

Mar-20

Naraha,Futaba,
Fukushima

Mar-20

Tamura,Fukushima

Mar-20Onahamaohara,
Iwaki

Mar-20

Iritono,Tono,
Iwaki

Mar-20Soil(in the park)

Onahamayokocho,
Iwaki

Mar-20Soil(in the park)
shrubbery

Onahamayokocho,
Iwaki

Mar-20Soil(in the park)

Onahamayokocho,
Iwaki

Mar-20

Salted plum

Fallen leaves
Pine cone
Pine leaves
Soil
Soil
Soil
Soil

Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134

Result

―
―
―
―
―
―
―
―
―
―
2.0
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―
―

Cs137 2200.0
Cs134 135.0
Cs137 423.0
Cs134 32.1

―
Cs134
―
Cs137 528.0
Cs134 39.9
Cs137

Cs137 7030.0
Cs134 430.0
Cs137 346.0
Cs134 23.1
Cs137 67.7
Cs134

5.0

Cs137 1350.0
Cs134 97.4
Cs137 804.0
Cs134 52.3
Cs137 371.0
Cs134 23.0

Uncertainty―
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 0.6
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 440.0
Bq/kg raw
± 28.0
Bq/kg raw
± 85.0
Bq/kg raw
± 7.0
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg dry
± 106.0
Bq/kg dry
± 8.8
Bq/kg dry± 1410.0
Bq/kg dry
± 86.0
Bq/kg dry
± 38.2
Bq/kg dry
± 3.6
Bq/kg dry
± 8.1
Bq/kg dry
± 1.4
Bq/kg dry
± 147.0
Bq/kg dry
± 13.5
Bq/kg dry
± 89.4
Bq/kg dry
± 9.9
Bq/kg dry
± 40.4
Bq/kg dry
± 3.9
Bq/kg raw±※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

4

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry

Bq/kg dry:Weight of dried sample)

Total Amount of Cesium Minimum Limit of Detection

Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection

Cs137

2.0

Cs137

Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection
Under Minimum
Limit of
Detection

Cs137

2335.0

Cs137

455.1

Cs137

Under Minimum
Limit of
Detection

Cs137

567.9

Cs137

7460.0

Cs137

369.1

Cs137

72.7

Cs137

1447.4

Cs137

856.3

Cs137

394.0

Cs137

Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs134
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134

1.2
1.2
1.2
1.0
1.5
1.3
1.2
1.1
0.8
0.7
1.0
1.0
1.0
0.9
1.2
1.1
2.2
1.6
1.5
1.4
1.9
1.8
1.7
1.5
1.7
1.4
2.1
1.6
14.5
12.2
3.9
3.8
4.7
4.5
6.2
5.1
16.5
13.7
4.2
5.5
2.4
3.2
4.1
4.8
4.1
5.7
4.1
5.6

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry
Bq/kg dry

★Gamma-ray
Samples
Soil(in the park)
under the slide
Soil(in the park)
Soil(in the park)
under the bars
Soil(in the park)
under the swing
Soil(in the ground)
Soil(in the ground)
Backside of thebackstop

Soil(in the ground)Soil(in the ground)
Soil(in the ground)central area
Soil(in the park)
under the slide
Soil(in the park)
under the bars
Soil(in the park)
under the slide
Soil(in the park)
sandpitSoil(in the park)
under the swing
Soil(in the park)
under the monkeybars

Soil(in the park)
under the junglegym

Soil(in the ground)
Backside of thebackstop

Soil(in the ground)
Soil(in the park)
under the swing
Soil(in the park)
under the slide
Soil(in the park)
Soil(in the park)
central area
Soil(in the park)
sandpitSoil(in the ground)(Bq/kg raw:Weight of raw sample

Bq/kg dry:Weight of dried sample)

Sampling Point Sampling Month Measurement Result Uncertainty Total Amount of Cesium Minimum Limit of Detection
Cs137 196.0 Bq/kg dry ± 23.1 Bq/kg dry
Cs137 3.6 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 17.4 Bq/kg dry ± 3.2 Bq/kg dry
Cs134 5.3 Bq/kg dry
Cs137 148.0 Bq/kg dry ± 18.9 Bq/kg dry
Cs137 3.4 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 14.8 Bq/kg dry ± 3.1 Bq/kg dry
Cs134 5.0 Bq/kg dry
Cs137 134.0 Bq/kg dry ± 14.6 Bq/kg dry
Cs137 2.1 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 9.0 Bq/kg dry ± 1.6 Bq/kg dry
Cs134 3.2 Bq/kg dry
Cs137 52.2 Bq/kg dry ± 7.2 Bq/kg dry
Cs137 1.8 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 7.1 Bq/kg dry ± 2.1 Bq/kg dry
Cs134 2.9 Bq/kg dry
Cs137 1780.0 Bq/kg dry ± 191.0 Bq/kg dry
Cs137 7.1 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 124.0 Bq/kg dry ± 16.1 Bq/kg dry
Cs134 7.8 Bq/kg dry
Cs137 754.0 Bq/kg dry ± 102.0 Bq/kg dry
Cs137 7.3 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 28.4 Bq/kg dry ± 14.1 Bq/kg dry
Cs134 8.2 Bq/kg dry
Cs137 665.0 Bq/kg dry ± 67.5 Bq/kg dry
Cs137 2.6 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 32.9 Bq/kg dry ± 4.0 Bq/kg dry
Cs134 3.4 Bq/kg dry
Cs137 604.0 Bq/kg dry ± 66.2 Bq/kg dry
Cs137 5.5 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 45.7 Bq/kg dry ± 6.5 Bq/kg dry
Cs134 7.1 Bq/kg dry
Cs137 526.0 Bq/kg dry ± 53.4 Bq/kg dry
Cs137 2.1 Bq/kg dry
Onahamayokocho,
Mar-20Iwaki
Cs134 25.5 Bq/kg dry ± 3.2 Bq/kg dry
Cs134 2.6 Bq/kg dry
Cs137 309.0 Bq/kg dry ± 34.4 Bq/kg dry
Cs137 2.3 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 21.5 Bq/kg dry ± 4.2 Bq/kg dry
Cs134 3.3 Bq/kg dry
Cs137 142.0 Bq/kg dry ± 17.4 Bq/kg dry
Cs137 2.4 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 11.5 Bq/kg dry ± 3.0 Bq/kg dry
Cs134 3.7 Bq/kg dry
Cs137 124.0 Bq/kg dry ± 13.9 Bq/kg dry
Cs137 3.8 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 8.7 Bq/kg dry ± 1.8 Bq/kg dry
Cs134 4.8 Bq/kg dry
Cs137 63.9 Bq/kg dry ± 7.1 Bq/kg dry
Cs137 1.6 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 3.7 Bq/kg dry ± 0.9 Bq/kg dry
Cs134 2.1 Bq/kg dry
Cs137 45.5 Bq/kg dry ± 5.8 Bq/kg dry
Cs137 2.4 Bq/kg dry
Onahamaokaona,
Mar-20
Iwaki
Cs134
Cs134 2.8 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 39.6 Bq/kg dry ± 5.0 Bq/kg dry
Cs137 3.9 Bq/kg dry
Onahamaokaona,
Mar-20
Iwaki
Cs134
Cs134 4.2 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 12.3 Bq/kg dry ± 1.9 Bq/kg dry
Cs137 3.0 Bq/kg dry
Onahamaokaona,
Mar-20
Iwaki
Cs134
Cs134 3.5 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 589.0 Bq/kg dry ± 64.7 Bq/kg dry
Cs137 4.5 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 41.9 Bq/kg dry ± 6.1 Bq/kg dry
Cs134 5.7 Bq/kg dry
Cs137 523.0 Bq/kg dry ± 57.7 Bq/kg dry
Cs137 5.2 Bq/kg dry
Onahamaokaona,
Mar-20Iwaki
Cs134 40.0 Bq/kg dry ± 5.9 Bq/kg dry
Cs134 7.0 Bq/kg dry
Cs137 122.0 Bq/kg dry ± 13.3 Bq/kg dry
Cs137 2.3 Bq/kg dry
Onahamatatsumi,
Mar-20Iwaki
Cs134 7.5 Bq/kg dry ± 1.5 Bq/kg dry
Cs134 2.9 Bq/kg dry
Cs137 80.7 Bq/kg dry ± 9.1 Bq/kg dry
Cs137 2.1 Bq/kg dry
Onahamatatsumi,
Mar-20Iwaki
Cs134 5.3 Bq/kg dry ± 1.2 Bq/kg dry
Cs134 2.7 Bq/kg dry
Cs137 72.1 Bq/kg dry ± 9.0 Bq/kg dry
Cs137 1.9 Bq/kg dry
Onahamatatsumi,
Mar-20Iwaki
Cs134 7.9 Bq/kg dry ± 2.3 Bq/kg dry
Cs134 2.4 Bq/kg dry
Cs137 61.9 Bq/kg dry ± 7.2 Bq/kg dry
Cs137 2.0 Bq/kg dry
Onahamatatsumi,
Mar-20
Iwaki
Cs134
Cs134 3.1 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 87.5 Bq/kg dry ± 9.6 Bq/kg dry
Cs137 1.9 Bq/kg dry
Onahama-minami
Mar-20kimigatsuka,Iwaki
Cs134 5.1 Bq/kg dry ± 1.1 Bq/kg dry
Cs134 2.4 Bq/kg dry
Cs137 527.0 Bq/kg dry ± 57.8 Bq/kg dry
Cs137 7.1 Bq/kg dry
Onahama-minami
Mar-20kimigatsuka,Iwaki
Cs134 33.0 Bq/kg dry ± 5.7 Bq/kg dry
Cs134 9.5 Bq/kg dry

213.4
162.8
143.0
59.3

1904.0
782.4
697.9
649.7
551.5
330.5
153.5
132.7
67.6
45.5
39.6
12.3

630.9
563.0
129.5
86.0
80.0
61.9
92.6

560.0

※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

5★Gamma-ray(Bq/kg raw:Weight of raw sample

Bq/kg dry:Weight of dried sample)

Sampling Point Sampling Month Measurement Result Uncertainty Total Amount of Cesium Minimum Limit of Detection
Cs137 391.0 Bq/kg dry ± 43.0 Bq/kg dry
Cs137 3.9 Bq/kg dry
Soil
Onahama-minami
Mar-20(in the ground) kimigatsuka,Iwaki
Cs134 21.3 Bq/kg dry ± 3.9 Bq/kg dry
Cs134 5.2 Bq/kg dry
Soil(in the ground)
Cs137 186.0 Bq/kg dry ± 20.8 Bq/kg dry
Cs137 3.2 Bq/kg dry
Onahama-minami
Mar-20
Front side of thekimigatsuka,Iwaki
Cs134 10.4 Bq/kg dry ± 2.2 Bq/kg dry
Cs134 4.8 Bq/kg dry
backstop
Cs137 128.0 Bq/kg dry ± 13.8 Bq/kg dry
Cs137 2.0 Bq/kg dry
Soil(in the ground)Onahama-minami
Mar-20kimigatsuka,Iwaki
under the swing
Cs134 9.0 Bq/kg dry ± 1.5 Bq/kg dry
Cs134 2.5 Bq/kg dry
Cs137 2250.0 Bq/kg dry ± 266.0 Bq/kg dry
Cs137 14.8 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the park)
Cs134 112.0 Bq/kg dry ± 23.3 Bq/kg dry
Cs134 15.4 Bq/kg dry
Cs137 1150.0 Bq/kg dry ± 126.0 Bq/kg dry
Cs137 9.1 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the park)
Cs134 80.0 Bq/kg dry ± 11.6 Bq/kg dry
Cs134 10.0 Bq/kg dry
Cs137 6.5 Bq/kg dry
Soil(in the park) Onahamafukimatsu, Mar-20 Cs137 1090.0 Bq/kg dry ± 119.0 Bq/kg dry
Iwaki
under the pinetree
Cs134 74.0 Bq/kg dry ± 10.6 Bq/kg dry
Cs134 7.2 Bq/kg dry
Soil(in the park) Onahamafukimatsu,
Cs137 481.0 Bq/kg dry ± 53.1 Bq/kg dry
Cs137 4.4 Bq/kg dryMar-20front of the
Iwaki
Cs134 32.6 Bq/kg dry ± 5.5 Bq/kg dry
Cs134 6.0 Bq/kg drywarehouse
Cs137 432.0 Bq/kg dry ± 50.1 Bq/kg dry
Cs137 6.2 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the park)
Cs134 26.2 Bq/kg dry ± 6.4 Bq/kg dry
Cs134 9.1 Bq/kg dry
Soil(in the park)
Cs137 199.0 Bq/kg dry ± 22.3 Bq/kg dry
Cs137 3.9 Bq/kg dry
Onahamafukimatsu,
animal shaped
Mar-20Iwaki
playground equipment
Cs134 12.6 Bq/kg dry ± 2.5 Bq/kg dry
Cs134 5.7 Bq/kg dry
Soil(in the park)
Cs137 132.0 Bq/kg dry ± 15.2 Bq/kg dry
Cs137 3.3 Bq/kg dry
Onahamafukimatsu,
under theMar-20Iwaki
Cs134 10.9 Bq/kg dry ± 2.5 Bq/kg dry
Cs134 4.2 Bq/kg dry
small slide
Soil(in the park)
Cs137 54.4 Bq/kg dry ± 7.1 Bq/kg dry
Cs137 2.4 Bq/kg dry
Onahamafukimatsu,
under theMar-20
Iwaki
Cs134
Cs134 2.6 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
big slideCs137 38.5 Bq/kg dry ± 5.7 Bq/kg dry
Cs137 1.8 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the park)
Cs134
Cs134 2.7 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 33.1 Bq/kg dry ± 4.1 Bq/kg dry
Cs137 1.8 Bq/kg dry
Soil(in the park) Onahamafukimatsu,
Mar-20Iwaki
sandpit
Cs134
Cs134 1.9 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Soil(in the ground)
Cs137 2410.0 Bq/kg dry ± 283.0 Bq/kg dry
Cs137 13.6 Bq/kg dry
Onahamafukimatsu,
Front side of theMar-20Iwaki
Cs134 131.0 Bq/kg dry ± 25.6 Bq/kg dry
Cs134 14.1 Bq/kg dry
backstop
Bq/kg
dry
Bq/kg
dry
Cs137 920.0
Cs137 10.2 Bq/kg dry± 101.0
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the ground)
Cs134 62.9 Bq/kg dry ± 9.5 Bq/kg dry
Cs134 11.9 Bq/kg dry
Cs137 559.0 Bq/kg dry ± 62.7 Bq/kg dry
Cs137 7.8 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the ground)
Cs134 42.4 Bq/kg dry ± 7.0 Bq/kg dry
Cs134 9.1 Bq/kg dry
Cs137 313.0 Bq/kg dry ± 34.4 Bq/kg dry
Cs137 2.5 Bq/kg dry
Soil(in the ground) Onahamafukimatsu,
Mar-20Iwaki
central area
Cs134 19.7 Bq/kg dry ± 3.3 Bq/kg dry
Cs134 3.3 Bq/kg dry
Cs137 6.7 Bq/kg dry ± 1.2 Bq/kg dry
Cs137 2.0 Bq/kg dry
Soil
Onahamafukimatsu,
Mar-20Iwaki(in the ground)
Cs134
Cs134 2.0 Bq/kg dry― Bq/kg dry ± ― Bq/kg dry
Cs137 884.6 Bq/kg raw ± 79.9 Bq/kg raw
Cs137 10.3 Bq/kg raw
Vacuum cleaner
OnahamaMar-20
hanabatake,Iwaki
dust(Dyson)
Cs134 53.4 Bq/kg raw ± 11.2 Bq/kg raw
Cs134 9.7 Bq/kg raw
Cs137 624.8 Bq/kg raw ± 64.5 Bq/kg raw
Cs137 20.5 Bq/kg raw
OnahamaVacuum cleaner dust
Mar-20(HITACHI Cyclone) hanabatake,Iwaki
Cs134 22.8 Bq/kg raw ± 11.7 Bq/kg raw
Cs134 15.5 Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 8.2 Bq/kg raw
OnahamaLimit ofCleaning sheet hanabatake,Iwaki Mar-20
Cs134
Cs134 6.3 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 1.7 Bq/kg raw
OnahamaLimit of
Plastic curtain hanabatake,Iwaki Mar-20
Cs134
Cs134 1.3 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Samples

412.3
196.4
137.0

2362.01230.01164.0
513.6
458.2
211.6
142.9
54.4
38.5
33.1

2541.0
982.9
601.4
332.7
6.7

938.0
647.6

※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

6

★Gamma-ray
Measuring instrument
Product of ATOMTEX AT1320A

FeatureNaI Scintillation Spectrometer
Product of BERTHOLD LB2045 ・Gamma-ray spectrometerwith NaI scintillation detector.

Guide to lower limit※
Food（Sample 1㎏）Lower limit

1.0Bq/Kg

Soil（Sample 1㎏）Lower limit

2.5Bq/Kg

Lower limit

1.0Bq/Kg

Water（Sample 20L）
Lower kimit

0.02Bq/L

Germanium Semiconductor detector
・Radioactivity measurement series.

Food（Sample 2㎏）Lower limit

0.04Bq/Kg

Quantitative analysis based on "Gamma-ray

Soil（Sample 1㎏）Lower limit

0.06Bq/Kg

spectrometry with germanium semiconductor detector."

Material（Sample 1㎏）

Lower limit

0.06Bq/Kg

・Relative efficiency 35％

Water（Sample 20L）
Lower limit

0.001Bq/L

Material（Sample 1㎏）

ORTEC

GEM30-70※The lower limit varies depending on the sample weight and measurement time.

Measuring instrument:Germanium Semiconductor detector(Bq/kg raw:Weight of raw sample

Bq/kg dry:Weight of dried sample)

Sampling Point Sampling Month Measurement Result Uncertainty Total Amount of Cesium Minimum Limit of Detection
Cs137 0.05 Bq/kg raw ± 0.02 Bq/kg raw
Cs137 0.04 Bq/kg raw
Rice
Chosei,Chiba
Oct-19
Cs134
Cs134 0.04 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Sasakino,
Cs137 2.20 Bq/kg raw ± 0.06 Bq/kg raw
Cs137 0.13 Bq/kg raw
Fukushima,
PotatoSep-19Cs134 0.20 Bq/kg raw ± 0.05 Bq/kg raw
Cs134 0.15 Bq/kg raw
Fukushima
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.07 Bq/kg raw
Limit ofPotatoHokkaido
Oct-19
Cs134
Cs134 0.07 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 0.07 Bq/kg raw ± 0.02 Bq/kg raw
Cs137 0.03 Bq/kg raw
Japanese white Fushiguro,Date,
Mar-20FukushimaradishCs134
Cs134 0.04 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Under
Minimum
Cs137
Cs137 0.06 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Japanese white
Limit of
Tomitsu,Iwaki
Mar-20radishCs134
Cs134 0.06 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 0.33 Bq/kg raw ± 0.02 Bq/kg raw
Cs137 0.04 Bq/kg raw
Fushiguro,Date,
CarrotMar-20Fukushima
Cs134
Cs134 0.04 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Under
Minimum
Cs137
Cs137 0.10 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Iritono,Tono,
Limit of
CarrotMar-20
Iwaki
Cs134
Cs134 0.10 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Under
Minimum
Cs137
Cs137 0.10 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Limit of
CabbageChiba
Feb-20
Cs134
Cs134 0.11 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.13 Bq/kg raw
Limit of
SpinachIwaki
Mar-20
Cs134
Cs134 0.12 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.07 Bq/kg raw
Limit ofBroccoli
Kaneyama,Iwaki Feb-20
Cs134
Cs134 0.07 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 0.25 Bq/kg raw ± 0.02 Bq/kg raw
Cs137 0.04 Bq/kg raw
Fushiguro,Date,
Corn
Jul-19Fukushima
Cs134
Cs134 0.06 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.07 Bq/kg raw
Utsunomiya,
Limit of
KonjacMar-20Tochigi
Cs134
Cs134 0.07 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.07 Bq/kg raw
Limit ofVienna sausage
Gunma
Mar-20
Cs134
Cs134 0.07 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 0.72 Bq/kg raw ± 0.21 Bq/kg raw
Cs137 0.41 Bq/kg raw
Fushiguro,Date,
Honey①
Apr-19Fukushima
Cs134
Cs134 0.56 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137 0.65 Bq/kg raw ± 0.21 Bq/kg raw
Cs137 0.42 Bq/kg raw
Fushiguro,Date,
Honey②
Apr-19Fukushima
Cs134
Cs134 0.52 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Cs137― Bq/kg raw ± ― Bq/kg raw Under Minimum Cs137 0.59 Bq/kg raw
Soy milk
Limit of
Chiba
Mar-20(soy:Canada,America)
Cs134
Cs134 0.52 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Detection
Cs137 0.54 Bq/kg raw ± 0.15 Bq/kg raw
Cs137 0.31 Bq/kg raw
Tamura,Natsuhaze jam
2019
Fukushima
Cs134
Cs134 0.35 Bq/kg raw― Bq/kg raw ± ― Bq/kg raw
Samples

0.05
2.40

0.07

0.33

0.25

0.72
0.65

0.54

※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

1

★Gamma-ray(Bq/kg raw:Weight of raw sample

Sampling Point Sampling Month Measurement Result Uncertainty
Cs137 31.8 Bq/kg raw ± 0.5 Bq/kg raw
Kuritake
Soma,Fukushima Nov-19
mushroom
Cs134 1.8 Bq/kg raw ± 0.3 Bq/kg raw
Shimeji mushroom
Cs137 3.88 Bq/kg raw ± 0.31 Bq/kg raw
grown
Soma,Fukushima Nov-19
Cs134― Bq/kg raw ± ― Bq/kg raw
in bacteria-bed
Cs137 2.71 Bq/kg raw ± 0.43 Bq/kg raw
Dried shiitake
Kanzaki,Saga
Mar-20mushroom
Cs134― Bq/kg raw ± ― Bq/kg raw
Cs137 0.36 Bq/kg raw ± 0.15 Bq/kg raw
Naraha,Futaba,
Well waterMar-20Fukushima
Cs134― Bq/kg raw ± ― Bq/kg raw
Samples※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

2

Bq/kg dry:Weight of dried sample)

Total Amount of Cesium Minimum Limit of Detection

33.6

Cs137

3.88

Cs137

2.71

Cs137

0.36

Cs137

Cs134
Cs134
Cs134
Cs134

0.5
0.6
0.52
0.57
0.83
0.95
0.31
0.33

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

★Beta-ray
Measuring instrument
Liquid Scintillation Counter
Product of Hidex
HIDEX 300SLL

Product of PerkinElmer Japan
Quantulus GCT 622

FeatureEquipment for measuring low-energy
beta-ray emission nuclides
Measuring nuclide
Strontium90
Half-life 30 years
Organically bound 3H
Harf-life 12.3
yearsFree-water 3H
Harf-life 12.3 years

All samples are measured in liquidcondition after several days of
pretreatment.
(Bq/Kg raw:Weight of raw sample

Samples

Sampling Point Sampling MonthTap water

Minamidai,
Iwaki

Oct-19Sea water A(surface)

Tomioka port,
FutabaNov-19Sea water A(lower)Tomioka port,
FutabaNov-19Off the coast of
Fukushima Nuclear
Power Plant1
Off the coast of
Sea water B
Fukushima Nuclear(lower)Power Plant1
Off the coast of
Sea water C
Fukushima Nuclear(surface)
Power Plant1
Off the coast of
Sea water C
Fukushima Nuclear(lower)Power Plant1
Off the coast ofJapanese rockfish
Fukushima Nuclear(flesh)Power Plant1
Off the coast of
Flounder①
Fukushima Nuclear(bone）
Power Plant1
Off the coast of
Flounder②
Fukushima Nuclear(bone）
Power Plant1

Sea water B(surface)

Nov-19
Nov-19
Nov-19
Nov-19Apr-19Sep-16

Measurement Result

Bq/Kg dry:Weight of dried sample)

Uncertainty

Under Minimum
Bq/L
Limit of
Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
Bq/L
Limit of
T(Free)Detection
Under Minimum
T(Organization)
Bq/Kg dry
Limit of
Detection
Under Minimum
Bq/Kg dry
Limit of
Sr90
Detection

T(Free)Minimum Limit of Detection

±

ー

Bq/L

2.15

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/L

1.98

Bq/L

±

ー

Bq/Kg dry

1.21

Bq/Kg dry±ー

Bq/Kg dry

0.15

Bq/Kg drySep-16Sr90

0.37

Bq/Kg dry

± 0.12

Bq/Kg dry

0.17

Bq/Kg dry

0.18

Bq/Kg dry

± 0.09Bq/Kg dry

0.13

Bq/Kg dry±ー

Bq/Kg dry

0.14

Bq/Kg dry

± 1.13

Bq/Kg dry

1.70

Bq/Kg dry±ー

Bq/Kg dry

1.78

Bq/Kg dry±ー

Bq/Kg dry

1.29

Bq/Kg dry

Salmon（flesh,guts）

Naraha,Futaba,
Fukushima

Dec-16

Sr90

Mushroom

Kamitono,Tono,
Iwaki

Sep-18

Sr90

Seasand(surface)

Nakoso Beach①,
FukushimaJun-18Sr90

Sea sand(10㎝ deep)

Nakoso Beach①,
FukushimaJun-18Sr90

Sea sand(20㎝ deep)

Nakoso Beach①,
FukushimaJun-18Sr90

Sea water A(surface)

Tomioka port,
FutabaNov-19Sr90

0.0008

Bq/L± 0.0004

Bq/L

0.0007

Bq/L

Sea water A(lower)Tomioka port,
FutabaNov-19Sr90

0.0009Bq/L± 0.0004

Bq/L

0.0006

Bq/L

Under Minimum
Bq/Kg dry
Limit of
Detection

1.82

Bq/Kg dry

Under Minimum
Bq/Kg dry
Limit of
Detection
Under Minimum
Bq/Kg dry
Limit of
Detection※The value below Minimum Limit of Detection does not necessary

mean 0(zero)Bq/Kg.

.

Measurement results by germanium semiconductor detector 14
Dr.Tetsuji Imanaka,Institute of Multiple Nuclear Science,Kyoto University

In order to convey more measurement results to everyone, we have asked Dr. Tetsuji Imanaka of theInstitute of Advanced Nuclear Science, Kyoto University, to measure low-dose samples using
germanium semiconductor detectors. Measurement samples are not only from Fukushima Prefecture but
also come from other prefectures. Please compare data based on measurements from various regions
and use them to protect your children from radiation exposure.

★Gamma-ray
Measuring instrument：Germanium Semiconductor detector

・Product of CANBERRA(CA),USA

GX3018Relative efficiency 30％ or more

・Product of ORTEC(OR),USA

GMX25－70

Relative efficiency 35％(Bq/kg raw:Weight of raw sample

Samples
Brown rice
Rice
Rice
Rice
Rice
Green pepper

Sampling Point Sampling Month
Hanawa,Higashishirakawa,
FukushimaOct-18

Okuma,Futaba

Oct-19Hirono,FutabaOct-19Haramachi,
Minamisoma,
FukushimaOct-19Nishihara,Aso,
Kumamoto

Oct-19

Saito,Miyazaki

Dec-19Nishihara,Aso,
Kumamoto

Dec-19Dried Japanesewhite radish

Nishihara,Aso,
Kumamoto

Feb-19Dried
persimmon

Joban,Iwaki

Dec-19Dried sweet
potapoHokota,Ibaraki

Butterbur

Miyagi

GingerBrackenAralia sprout

Akita
Akita

Shiitake
mushroom

Akita

Dried
whitebait

Hyogo

Egg

Kami,Miyagi

Jan-20May-19
May-19
May-19
May-19Dec-19Dec-19Measuring
instrument
type

OR
OR
CA
OR
OR
CA
CA
CA
CA
OR
CA
CA
OR
CA
CA
CA

Measurement Result
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134

0.2
―
1.40
0.09
0.2
―
0.09
―
―
―
―
―
―
―
―
―
0.7
―
2.6
0.2
2.2
0.1
0.1
―
9.2
0.5
1.5
―
―
―
―
―

± 0.02
Bq/kg raw
± ―Bq/kg raw
± 0.05
Bq/kg raw
± 0.02
Bq/kg raw
± 0.03
Bq/kg raw
± ―Bq/kg raw
± 0.02
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 0.09Bq/kg raw
± ―Bq/kg raw
± 0.08
Bq/kg raw
± 0.03
Bq/kg raw
± 0.1
Bq/kg raw
± 0.05
Bq/kg raw
± 0.05
Bq/kg raw
± ―Bq/kg raw
± 0.2
Bq/kg raw
± 0.1
Bq/kg raw
± 0.07
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

1

Uncertainty
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

Bq/kg dry:Weight of dried sample)

Total Amount of Cesium

0.2

Cs137

1.49

Cs137

0.2

Cs137

0.09

Cs137

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

0.7

Cs137

2.8

Cs137

2.3

Cs137

Under Minimum
Limit of
Detection

Cs137

9.7

Cs137

1.5

Cs137

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134

ー
ー
ー
ー
ー
ー
ー
ー
0.03
ー
0.04
ー
0.7
ー
0.6
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
ー
0.1
ー
0.1
ー

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

★Gamma-ray
Samples(Bq/kg raw:Weight of raw sample

Sampling Point Sampling MonthJapan(production)

Dec-19Sugar(sugar cane)

Okinawa

Jan-20Sugar

Okinawa andKagoshima

Dec-19Tairashimo
katayose,Iwaki

Jun-19NaganoDec-19

Tofu

Rice miso
Ham
Stew loux
Bread crumbs
YogurtGreen tea

Nishihara,Aso,
Kumamoto

Jan-20Japan(production)

Dec-19Okayama

Dec-19Shizuoka

Vacuum cleaner
dust

Chiba

Vacuum cleaner dust
(paper pack)Yoshinogawa,
Tokushima

Dec-19Dec-19Dec-19Measuring
instrument
type

OR
OR
OR
CA
CA
OR
OR
CA
OR
CA
CA

Measurement Result
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134
Cs137
Cs134

―
―
―
―
―
―
0.1
―
0.03
―
―
―
―
―
0.05
―
0.7
―
19
2
2
―

± ―
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 0.05
Bq/kg raw
± ―Bq/kg raw
± 0.02
Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± ―Bq/kg raw
± 0.02
Bq/kg raw
± ―Bq/kg raw
± 0.1
Bq/kg raw
± ―Bq/kg raw
± 2
Bq/kg raw
± 0.9
Bq/kg raw
± 0.6
Bq/kg raw
± ―Bq/kg raw※"＿" used in Measurement Result and Uncertainty shows that the value is below the detection limit.

But it does not necessary mean 0(zero)Bq/kg.

2

Uncertainty
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw

Bq/kg dry:Weight of dried sample)

Total Amount of Cesium

Minimum Limit of Detection

Under Minimum
Limit of
Detection

Cs137 0.03

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

0.1

Cs137

0.03

Cs137

Under Minimum
Limit of
Detection

Cs137

Under Minimum
Limit of
Detection

Cs137

0.05

Cs137

0.7

Cs137

21

Cs137

2

Cs137

Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134
Cs134

ー
0.09
ー
0.09
ー
ー
ー
ー
ー
0.07
ー
0.25
ー
ー
ー
ー
ー
ー
ー
ー
ー

Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw
Bq/kg raw