∠頑i議ISSNO441−2516
NIRS−RSD−123

RADIOACTIVITYSURVEYDATA
in JapanPart 2＝DietaryMaterials＝
NUMBER123
August 1999

，二）∴● NationalInstituteofRadiologlCalSciences
Chiba，Japan

Radioactivity Survey Datain Ja p a n
Number 123

Dietary Materials

ust1999 part 2

ContentseP

EnvironmentaIandDietaryMaterials（JapanChemicalAna［ysisCenter）
3

2
4

3

3

4

5

4

6

5
5

SeparationofStrontium−90andCesium−137
DeterminationofStableStrontium，CalciumandPotassium

1

1

Co ectjonandpretreatmentofsamples
PreparationofsamplesforanalysIS

9Counti咽0Results（1） Strontium−90 and Cesium−137inTotalDiet−（2） Strontium−90 and Cesium−137in Rice
（PrOducingdistricts）

4（consumingdistricts）

5−4 Strontium−90 and Cesium−137in M‖k2（3〉−1Strontium−90 andCesium−137in Milk
（producingdistrictsfordomesticprogram）−2 Strontium−90 and Cesium−137in Milk
（producingdistrictsforWHOprogram）−3 Strontium−90 and Cesjum−137in MiIk

（powderedmilk）（4）−1Strontium−90 andCesium−137inVegetables（PrOducingdistricts）−2 Strontium−90 andCesium−137inVegetabLes（5） Strontium−90 andCesium−137inTea（JapaneseTea）（9） Strontium−90 and Cesium−137in Seaweeds

7．ContentsofFigure（SelectedLocation）

21 23 25 ㌘

（6） Strontium−90 and Cesium−137in Sea Fish
（7） Strontium−90 and Cesium−137in FreshwaterFish（8） Strontium−90 andCesium−137inShe＝fish

け 18（COnSumingdistricts）

EdittedbyNationallnstituteofRadio10glCalSciences，underthesupervisionofScienceandTechno10gyAgencyofJapaneseGovernment・EnvironmentalandDietaryMateria）s

Where the effect ofterrestrialfresh waterfrom rivers

WaS eXPeCted to be negligibly small．A special
COnSiderationwasalsogIVentOWeatherconditions．
The sampling was carried out when there was（JapanChemicalAnalysisCenter）
l・ C011ectionandpretreatmentofsamples（1）Rainanddryfa‖out

no rainfallfor the［ast few days．To prevent
COntamination，WaterSamPleswereco＝ected atthe

Rain and dry fallout was collected monthly on abowofasamp＝ng boatjustbeforeshest00dstiHby

SamP＝ng tray，aPPrOXimately 5000cm2in area．

SC00Plng SUげacewateruslng a P01yethyIene bucket

Whichwasf＝edwithwatertoadepthoflcmatthe

lmmediately after the c011ection，the sampLes
Were aCidified to a pHlower than 3by adding
COnCentrated hydrochloric acidin a rati00flm2t0

begFnnIngOfeverymonth・Strontium and cesium carrier sofutions wereadded a什erthe samplewasfiltered．Thetraywas 1Q Of sea water．and then stored jn20D P01yethy−
WaShed with520f distiIled water and the washing
1enecontainers・Thesamp＝ng equipmentsasweH

as containers vvere thoroughly rinsed vvith dilute

WaS COmbined to the filtrate．

The sample was passed through a cationhydrochloricacid andthenwith dist川edwaterbefore
exchange column（500m90fDowex50WX8，50〜 use． Two hundred mi11iliters of sea＼〟aterWaS also
100mesh，Na form）at a rate flow of80mJ2／min．

COllected at the same stations for the determination

Ofch10rinity．
（2） Airborne dust

Airborne dust vvas co‖ected by an eLectrostatic（6） Sea sediments

PreCipitato「Or a filter air sampIer for every three−

Sediment was collected in the same area as thatfor the sea water sample，taking the f01Eowmg

monthsatarateofmorethan3000m3permonth・The sampElng WaS donelt01，5meters above

Criteriainto account：a．The depth ofwaterexceedslm at Lowtide

theg「Ound．

b．No slgnificant sedimentalmovementis ob−

SerVedinthevicinityofconcern．

（3） Servicevvaterand freshwater
Service water，1002 eaCh，WaS C01lected at the

C・Mud．siItandfinesandarepreferabJe．

intake of the water−treatment PIant and at the tap

SerVice water．

A conventional sediment sampling device wasused for coIlecting the top few centimeters ofSurface sediment Approximately 4kg of the
SamPlein vvet weight was spread on a stainless
SteeE dish afterremoved ofthe pebbles．shells andOtherforelgn materials．and driedln a drying ovenregulatedat105Oc．

（4） Soil（7） Totaldiet

a代er water was Feft runnlng for five minutes．
Strontium and cesIUm Carriers were added to thefiJtered water sampFe．The subsequent process
WaS the same as that describedin the section（1）Freshwater was t「eatedin the same way as theAfullonedayordinarydietincludingthreemeals，
SPaCious and flat area without past surface distur− Water．tea and otherin−between snacks for five
Soilwas c011ected from thelocationin thebance caused by dust storms．infEow and out f［owdue to precIPitation．etc‥ Any p−aces10CatedPerSOnS WaS C011ected as a sample of totaE diet‖．

The samplein alarge stahlless steelpan was
Carbonized carefuIly by direct application of gas

undertreesin a forest，in a stonyarea orinsideof

fIameIand wast「ansfe「red to a porcelain dish andthen ashed at450Ccin an electricmuffIefurnace．

river banks were avoided． Soilwas taken from tw0

1ayers of different depths．0−5cm and 5−20cm．
The soi［Eumpswe「ecrushed by hands and driedin

adrylngOVenregulatedlO50c．ThesoiLwasthen
passed through a 2mm sieve to remove plant roots
and pebbles．

（8） Rjce

P01ished ricewascollectedin producing districts
at the harvest and in consuming areas when new
CrOPS Were first put on sale， The sample vvas
Carbonizedandashed LnaPOrCelaindish．

（5） SeawaterSea water was co‖ected at the fixed stations★ SamplesweresenttotheCente「from46contracted prefectures（1）

（12）Fish，She‖fish and seaweeds（9） Milk

Rawm‖kwasco＝ectedinproducingdistrictsand

a．Seafish and freshwaterfish

COmmerCiaJmilkwaspurchasedinconsumlngdistrj−

Fish was rinsed with water and bIotted with a

CtS・Milkin a stainless steelpan or a porcelainfilterpaper．0nIytheediblepartwas usedincase
Oflargersizedfish．andthewhoIepartwasusedindish was evaporated to dryness fol10Wed by
Carbonjzationandashing．

CaSe Ofsma‖erones・Each samp［ewas weighed

and placedin a stain［ess steelpan or a porcelain（10）Vegetables

dish・After carbonized．the sample was ashedin

Spinach and Japanese radish were selected as
the representatives for left vegetables and for

an electric mu冊e furnace．
b．She‖fish

nonstarch roots．respectively・After removIng SOil．

Approximately 4kg of shellfish including thethe edible part of vegetable sample was dried andCarbonizedin a stainless steelpan or a porceIain

Shellswasco‖ectedorpurchasedr Afterremov．ng
the shells・itwas treatedin the sameway as that

dish．

forthe sea fish．
C．Seaweeds

Edibleseaweedswereco‖ected and rinsed with
WatertOremOVeSandandotheradheri「唱matterSOn
the suげace．Thesewere removed ofexcesswater．

（11）TeaFive hundred grams of manufactured green tea
WaS COLlected，Carbonized and ashedin a stainlessSteelpanoraporcelajndish．

Weigheddriedandashed．
TablelshowsdetajlsofsampIecollection．

Tablel DetailsofsampLec01暮ection

SampleFrequencyofsampllng

Quantityofsample＝Environmenta霊materials＝（1）Rainanddryfal10ut

l，Fordomestjcprogram
2・ForWHOp「og「am（2）Airborne dust（3）Servicewaterand freshwaterl．Servicewater（sourcewater）
2．Servicewater（tapwater）
3，Freshvvatermon州ymonthly
qua止e「ly〉3000m3／month

SemlyearlylOO ∠2

Semlyear［y100 βyearly（fishingseason）

100 二〉（4）SoiIyea「lyq︶ β q︶yea「ly0︶O4（7）Totat diet

4 4（6）Sea sediments＝Dietarymaterials＝4（5）Seawater

yearlyyeartyk．K kl．0〜 5 cm
2．5・｝ 20cm

SemIyearly

dailyamountfor5persons

yearly（harvestingseason）
yearly（harvestingseason）

5kg（polishedrice）
5kg（poIishedrice）（8）Ricel．Producingdistricts
2．Consumlngdjstricts（9）Milk

l．Producingdistrictsfor
WHOprogram
2．Producingdistrictsfor
domestic program

qua代erIy（February．May．Augustand 3Q

November）
Semiyearly（FebruaryandAugust）

（2）

3 Q

Sample3．Consumingdistricts
4．Powdered milkFrequencyofsampIlng
SemiyearJy（FebruaryandAugust）

Quantity of sample
3 Q

Semiyearly（AprilandOctober）（10）Vegetab暮esl．Producingdistricts
2．Consumlngdistricts（11）Teayear（y（harvestingseason）

yearly（harvestingseason）
yearly（thefirstharvestingseason）（12）Fish，Shellfish and seaweedsl，Sea fish
2．Freshwaterfish
3，She fish

4．Seaweeds

yearEy（fishingseason）
yearly（fishingseason）
yearIy（fishingseason）
yearly（fishingseason）

2． PreparationofsampIesforanaiysfSSame PrOCedure as that describedin the section2−（1） Rain，SerVicewaterand freshwater
Strontium and cesium were e山ted vvith hydro−（4）．

ChIoricacidfromthecationexchangecolumn・The 3． Separationofstrontjum−90andcesium−137
residueofrainsampleonthefi［terpaperwasashed（1） Stront山m−90

Sample s0lutions，PrePared asin the foregolng

in an eIectric muffIe furnace and the ash wasdissoIvedin hydrochloric acid．Theins0lubIe part
WaS fiItered and washed． The filtrate and the
WaShingswerecombinedtothepreviousetuateand
USedforradiochemicalanalysIS．

SeCtions2−（1）through2−（4），Were neutrafizedwith
SOdium hydroxide．A什er sodium carbonate wasadded．the precIPitate of strontium and calcium
Carbonates was separated， The supernatant
SOJution was retained for cesium−137 determination．

（2） Soiland Sea sediment
Dried soilwas crushed to smaller ones than O．2

Thesieved samplewas
5mmin sizebyacrusher．
ashedin an electric muH［e furnace regulated at450
Oc．ThesampJewasthen
heatedwith hydrochloric
acid，StrOntium and cesium Carrier soIutions and the
mixture was heated， The
insoFubIe constjtuent was
filtered offand vvashed with Wate「．
CruShed to sma［ler ones
The dried sample wasthan O．25mm by a crushing machine．The fu丘her

PreParation of the sample was the same as that
describedin the section2−（2）．

The carbonates were dissolved in hydrochloric
acid and strontium and calcium were precipitated as
OXalates．The precipitatewas dissoIvedin nitric acidand strontium was separated from calcium by
SuCCeSSive fumlng nitric acid separation．lron
SCaVenge WaS made after addition of fer「iciron

Carrierfo＝owed by bariumchromateseparation after
addition of barium carrier to remove radium，its

daughters andlead，Strontium was recovered as
Carbonate，and the precEPitate was dried andWeighed to determine strontium recovery．The
StrOntium carbonate vvas diss0lvedin hydrochloric
acid andiron carrier was added． The soIution wasal‡owed to stand for two weeks for strontium−90 and（3） Riceyttrium−90to attain equilibrium．Yttrium−90was

The ashed sample vvas pu［verized vvith a porceト
ain mo止ar and passed through a O．35mm sieve・

COPreCIPitated with ferric hydroxide and the

The sieved sample to which both strontium andCeSium carriers were added，WaS digested withnitric acid by heating．After the sample washeated agaln Wjth nitric acid to dryness，StrOntium
and cesium were extracted with hydrochloric acid

PreCIPitatewasfiIteredo什 washedandcounted．

and vvater． TheinsoIubIe constituent was fiItered

and washed．The fjltrate and washings wereCOmbinedforsubsequentradiochemicalanalysIS．
（4）Airborne dust．diet．miLk，VegetabIes，fish（2） Ces山m−137

The supernatant separated from the stront山m

fractionvvasacidifiedwith hydrochloricacid．While
Stirnng，CeSium was adsorbed on the ammonlUm
moEybdophosphateadded．
After filtered off and washed with hydrochLoricacid the precLPitate was diss0lvedin2．5N sodiumhydroxide s0lutlOnl The s01ution was adjusted toand shellfish．seaweeds，tea and others

PH8．2with hydrochloricacid and allowedtoc00I，These ashed samp［es were treated vvith theResultant m01ybdenum hydroxide which separated（3）

digestedwith hydrofluoricacidandnitricacid．

Outin the s0lution，WaS filtered offand washed with
Water． EDTA was added to the filtrate and wash−

The extract was made up to an appropriate volume

ings. Cesium and rubidium were adsorbed on acation exchange column and cesium was separated
fromrubidiumbyelutingwithhydrochloricacid．
The eluate was evaporated to dryness and wasWith dilute hydrochloric acid，The sampIe solution
WaS analyzed for caIcium by titration with standard
POtaSSium permanganate s01ution after separating
Calcium as oxalate・Atomic absorption spectros−
COPy WaS aPPFied when appropriate． Stable

diss0lved． The s0lution was firtered，

Chloroplatinic acid was added to precIPitate cesi−
um．TheprecIPitatewasfilte「edontoataredpaper

StrOntiumand potassiumweredeterminedbyatomic
absorption and fFame emission spectrometry，

uslng a demountable filter and washed vvith water

respectiveIy．

and then ethanoE・Afterdrying．thechemicalyieldOf cesium was determined by weighing the precIP−

5． Counting
After the radiochemical separation the mounted
PreCIPitates were counted for activity uslng Low
background betacountersnormalFyfor60t090min，

itate・Cesium−137radioactivity vJaS meaSured forthisprecLPitate．

Net sample counting rates were corrected for
COunter e輔ciency．recovery．seIf−absorption anddecay t0 0btain the content of strontium−90and
CeSium−137pe「SamPIe aIlquOt．From the results，

4． Determination of stable strontium．caEciumand potassium
A weighed amount of soil or sea sediment washeatedin a electric muffle furnace at 4500c andconcentrations of these nuclides in the original

thentreatedwith hydrochEo「icacidforextraction．
A weighed arIquOt Of ashed samples oftota暮diet．
VegetabIes，miIk，fish，Shellfish or seaweeds was

SamPleswerecafcuIated．

（4）

6． Resu（tsStrontium−90and Cesium−137in TotalDiet（from Apr．1997to Sep．1997）−COntinued from No，12l of this publication−
Table（1）Strontiurn−90and Cesium−137in TotalDiet

（l）

Ca

Åsh

K

しocatio【Ash（g／p・d）Ca（mg／p・d）K（rng／p・d）

∧U
1
∧U
3
6
9
3
7
1
7

0．047 ± 0．0099

0．031 ± 0．0064

0．013 ± 0．0027

0．054 ± 0．0061

0．082 ± 0．0093

0．036 ± 0．0066

0．022 ± 0．00引

0．031 ± 0．0084

0．079 ± 0．021

0，047 ± 0，0073

0．022 ± 0．0034

0．066 ± 0，0062

0．078 ± 0．0074

0．037 ± 0，0079

0．020 ± 0．0042

0．067 ± 0．0069

0．18± 0．0180．030 ± 0．0066

0，017 ± 0，0038

0．050 ± 0．0095

0．12± 0．0230．086 ± 0．0091

0．046 ± 0，0049

0．032 ± 0．0052

0．084 ± 0．014

0．032 ± 0．0059

0．022 ± 0．0041

0．073 ± 0．0075
0．044 ± 0．0067

0．13± 0．0140．030 ± 0．0061

0．018 ± 0．0037

0．096 ± 0．015

0．040 ± 0．0066

0．022 ± 0．0037

0．045 ± 0．0062

0．089 ± 0．012

0．043 ± 0．0065

0．032 ± 0．0048

0．034 ± 0．0056■

0．055 ± 0．0091

0．027 ± 0．0061

0．011 ± 0．0024

0．050 ± 0．0064

0．078 ± 0．010

0．050 ± 0．0074

0．023 ± 0．0034

0．046 ± 0．010

0．081 ± 0．018

0．053 ± 0．0077

0．026 ± 0．0038

0．049 ± 0．0093

0．097 ± 0．018

0．048 ± 0．0071

0．023 ± 0．0035

0．044 ± 0．0060

0．095 ± 0．013

0．013 ± 0，0050

0．0076 ± 0．0028

0．045 ± 0．0094

0．064 ± 0．013

0．017 ± 0．0056

0．011 ± 0．0035

0．095 ± 0．013

0．14± 0．0190．040 ± 0．0070

0．016 ± 0．0029

0．042 ± 0．0084

0．055 ± 0，011

0．027 ± 0．0060

0．015 ± 0．0033

0．030 ± 0．0054

0．059 ± 0．011

0．025 ± 0．0056

0．012 ± 0．0028

0．055 ± 0．010

0．088 ± 0．017

0．045 ± 0．0071

0．015 ± 0．0024

0．029 ± 0．0051

0．11± 0．0190．060 ± 0．0079

0．034 ± 0．0045

0．031 ± 0．0086

0．073 ± 0．020

0．060 ± 0．0077

0．037 ± 0．0048

0．063 ± 0．0099

0．097 ± 0．015

0．018 ± 0．0055

0．0062 ± 0．0019

4
6
−
1
3
7
0
6
9
q︸
6
0
2
6
2
5
6
6
6 6 5 5 4 6

3 9
1 1

5 4 5

0
1

3 8 3 4 3

2 0
1 1

Nishikawa−naChi．NIIGATA

0．047 ± 0．0062

5

Hachijou−maChi．TOKYOq︶

Shi【juku．TOKYO

0 0
1 1

Chikura−maChi．CHIBA

1

Ichihara，CH柑A

4Kumagaya．SAけAMA

2 1
1 1

Urawa，SAIT川A

7Nakanojou−naChi，GUNMA

2

Haebashi，GUNMA

900ka，TOCHIGI

2

Utsunomiya．TOCHIGl

7

Tokai−mu「a，tBARAKI7

Mito，＝錮RAKl

0

Ookuma−maChi，FUKUS日用A

4

Fukushima．FUKUSH

9

Sagae，YAMÅGATA

4

Yamagata，YAMAGATA

2

Iwaizum卜machi．川ATE

6

Mo「ioka．川ATE

8Ajigasawa−maChi，AOMORI（Bq／p・d）

7

Aom8ri，AOlJOR暮0

Iwanai−maChi．HOKKA［DOU（Bq／gCa）

2

Sapporo，HOKKAIDOU

4 5 2 5 4 0 5 6 ハリ 6
7 3 00 7 2 6 5 4 4 3 7 8 4 6 2 3 7 6 8 − 4 3 41 1 1 1 1 ■l l − 1 1

J】ne．1997（Bq／p・d）

（5）

（6）

Ash

Ca

K

しocatio【Ash（g／p・d）Ca（mg／p・d）K（mg／p・d）

0．026 ± 0．0036

0．034 ± 0．0068

0．016 ± 0．0032

1840

0．023 ± 0．00B5

0．055 ± 0．020

0．019 ± 0．0056

0．010 ± 0．0030

2060

0．040 ± 0．0060

0．056 ± 0．013

0．018 ± 0．0058

0．0087 ± 0．0028

1380

0．046 ± 0．0064

0．061 ± 0，0085

0．031 ± 0．0063

0．022 ± 0．0046

1950

0．050 ± 0．0094

0．076 ± 0．014

0．041 ± 0．0059

0．021 ± 0．0035

1750

0．042 ± 0．0057

0．11± 0．0150．034 ± 0．0068

0．019 ± 0．0039

1940

0．048 ± 0．0064

0．080 ± 0．011

0．030 ± 0．0062

0．015 ± 0，0032

1940

0．051 ± 0．0064

0．099 士 0．012

0．031 ± 0．0066

0．016 ± 0．0034

1970

0．044 ± 0．0060

0．071 ± 0．0098

0．040 ± 0．0066

0，020 ± 0．0033

306

0

1910

0．021 ± 0．0070

0．067 ± 0．023

0．029 ± 0．0061

0，015 ± 0．0032

893

2130

0．059 ± 0．0071

0．066 ± 0．0079

0．028 ± 0．0062

0．013 ± 0．0029

600

■l 1

2470

0．045 ± 0．0060

0．076 ± 0．010

0．059 ± 0．0078

0．024 ± 0．0032

303

1690

0．020 ± 0．0048

0．065 ± 0．016

0．011 ± 0．0049

0．0068 ± 0．0029

629

1980

0，036 ± 0．0079

0．058 ± 0．012

0．043 ± 0．0067

0．022 ± 0，0034

444

2210

0．031 ± 0．0084

0．069 ± 0．019

0．052 ± 0．0074

0．023 ± 0．0033

484

1960

0．040 ± 0．0079

0．082 土 0．016

0．023 ± 0．0060

0．012 ± 0．0031

1

572

2360

0．054 ± 0．0094

0．095 ± 0．016

0．040 ± 0．0066

0．017 ± 0．0028

367

1900

0．037 ±−0．0084

0，10± 0．0230．010 ± 0．010

0．054 ± 0．0051

361

1570

0．069 ± 0．010

0．19± 0．0280．027 ± 0．0057

0．017 ± 0．0036

■−

413

1750

0．029 ± 0．0090

0．071 ± 0，022

0．017 ± 0．0059

0．0098 ± 0．0034

374

2000

0．040 ± 0．0099

0．11± 0．0260．088 ± 0．0048

0．0044 ± 0．0024

−

556

2260

0．058 ± 0，0064

0．11± 0．0120．028 ± 0．0059

0．012 ± 0．0026

523

1920

0．044 ± 0．010

0．085 ± 0．020

0．018 ± 0．0052

0．0095 ± 0．0027

532

1740

0．042 ± 0．0059

0．080 ± 0．011

0．012 ± 0．0051

0．0070 ± 0．0030

3
5

7

7

6

2

1

4

6

4
1

6

2

6
7

5
5
7

Kakog洲a，HYOUGO−

Sakai，OSAKA

4Osaka，OSAKA一−−

Maizuru，KYOTO

1

Kyoto，KYOTO

1

Owase．ulE−Tsu，uほ4 4 6 3 0 6 4 ︻J 8 8 9 7 0U
5 3 4 4 7 7 3 5 5 3 3 4 − 3Imazu−naChi．SHLGA

1

Ootsu．SHLGA

1
5

Shinshiro．ALCH−

Nagoya．AICm

1−

Hamaoka−naChi．SHIZUOKA−

Shizuoka．SHIZUOKA

6▲−

Takayama，GIFU

4

1

Gjfu，Gけ〕

5

1

Sanada−maChi．NÅGANO

1

■−

4

0．055 ± 0．0076

0± 0．0250．010 ± 0．014

−

4

0．18

0．043 ± 0．0057

Yoshinodani−mura，1SMKAYANaga【0，NAGANO

2

0．081 ± 0．011

Kanazaw孔ISHIKAWA

Nirasaki，Y川ANAS＝（Bq／gK）

2120

Takaoka．TOYAMA

Koufu，YAMANASHI（Bq／p・d）

2130

Takaoka，TOYANA

Fukui，FUKUI（Bq／gCa）

4

1

5 2 9 7 9 0Uq︶ 4 5 6 クー5Kashiwazaki，NIIGATA（Bq／p・d）

1
1−
1 1■
一■一 1

Ca

Åsh

K

Locatio【Ash（g／p・d）Ca（ng／p・d）K（mg／p・d）（Bq／p・d）（Bq／gCa）（Bq／p・d）（Bq／gK）

Hamasaka−maChi，HYOUGO

13．6

646

0．050 ± 0．011

0．077 ± 0．017

0．014 ± 0．0050

0．0088 ± 0．0031

Kashihara，NARA

13．3

716

0．056 ± 0．0098

0．078 ± 0．014

0．017 ± 0．0054

0．010 ± 0．0032

Gojou，NARA

11．5

1310

0．050 ± 0．0059

0．038 ± 0．0045

0．022 ± 0．0052

0．014 ± 0．0032

Fukube−mura，TOTTO鋸

15．4

384

0．055 ± 0．0094

0．14± 0．025

0．024 ± 0．0059

0．012 ± 0．0028

Tottori，TOTTORI

13．1

462

0．039 ± 0．0092

0．084 ± 0．020

0．038 ± 0．0066

0．016 ± 0．0028

Kashima−maChi．SHl ANE

柑．5

1250

0．035 土 0．0086

0．028 ± 0．0068

0．035 ± 0．0064

0．017 ± 0．0031

Okaya打Ia，OKAY用A

18．6

692

0．024 ± 0．0080

0．034 ± 0．0‖

0．033 ± 0．0062

0．015 ± 0．0029

668

0．080 ± 0．011

0．12± 0．0170．021 ± 0．0078

0．010 ± 0．0038

Kalnisaiba「a−mUra，OKAYAMA

け1

Hiroshima．mROSHluÅ

10．9

252

0．056 ± 0．0069

0．22± 0．027

0．018 ± 0．0057

0．013 ± 0．0040

帖yoshi，日用OS日用Å

11．0

455

0．027 ± 0．0082

0．059 ± 0．018

0．018 ± 0．0052

0．012 ± 0．0035

Yamaguchi．YALdAGUCHI

15．7

484

0．049 ± 0．010

0．10 ± 0．021

0．035 ± 0．0069

0．019 ± 0．0038

Ajisu−naChi．YAL仏GUCHI

16．8

458

0．037 ± 0．0086

0．082 ± 0．019

0．038 ± 0．006S

0．016 ± 0．0029

Takamats】，KÅG州A

15．2

421

0．037 ± 0．0056

0．087 ± 0．013

O．023 ± 0．0057

0．011 ± 0．0028】a「ugame，KAG用A

15．1

433

0．031 ± 0．0052

0．072 ± 0．012

0．019 ± 0．0065

0．0092 ± 0．0032

uatsuyama．E＝川E

14．9

447

0．014 ± 0．0065

0．031 ± 0．015

0．030 ± 0．0062

0．015 ± 0．0031

lkata−naChi，E日用E

9．26

394

0．029 ± 0．0078

0．073 ± 0．020

0．012 ± 0．0045

0．0096 ± 0．0035

Kochi，KOCH

16．5

520

0．045 ± 0．0096

0．086 ± 0．018

0．020 ± 0．0060

0．010 ± 0．0030

Saga−naChi，KOCHI

15．1

564

0．094 ± 0．0083

0．17± 0．015

0．045 ± 0．0071

0．022 ± 0．0034

Dazaifu．FUKUOKA

14．3

400

0．023 ± 0．0050

0．058 ± 0．012

0．011 ± 0．0046

0．0053 ± 0．0023

Fukuoka．FUKUOKA

は7

489

0．045 ± 0，0061

0．091 ± 0．012

0．029 ± 0．0071

0．021 ± 0．0050

Sag孔 SÅGÅ

11．1

245

0．030 ± 0．0084

0．12± 0．034

0．018 ± 0．0051

0．013 ± 0．0037

Karatsu．SAGA

16．8

607

0．033 ± 0．0090

0．054 ± 0．015

0．018 ± 0．0053

0，0083 ± 0．0025

Nagasaki，NAGASAK】

16．7

553

0．049 ± 0．0064

0．089 ± 0．012

0．034 ± 0．0075

0．017 ± 0．0（）38

atsuura．NAGASAKI

11．9

465

0．038 ± 0．0078

0．081 ± 0．0け

0．018 ± 0．0058

0．011 ± 0．0035

Kumamoto，KUMAMOTO

14．3

323

0．031 ± 0．0057

0．096 ± 0．018

0，028 ± 0．0071

0．013 ± 0．0034

（7）

（8）

Ca

Ash

K

LocationAsh（g／p・d）Ca（rng／p・d）K（mg／p・d）（Bq／gK）

0．015 ± 0．0038

0．026 ± 0．0067

0．019 ± 0．0050

0．024 ± 0．0051

0．073 ± 0．016

0．0059 ± 0．0044

0．0049 ± 0．0036

0．011 ± 0．0068

0．023 ± 0．015

0，050 ± 0．0073

0．027 ± 0．0040

0．046 ± 0．0067

0．10± 0．0150．029 ± 0．0067

0．014 ± 0．0033

0．034 ± 0．0088

0．042 ± 0．011

0．019 ± 0．0053

0．0078 ± 0．0022

O

0．047 ± 0．010

0．12± 0．0260．040 ± 0．0070

0．021 ± 0．0037

0 O
0
O

QU

1

8

3

2

9

O

2

0．024 ± 0．0060

0．072 ± 0．015

0．10

0．21

7

0U

1

4

0．083 ± 0．016

0．027 ± 0．0056

0

2

1

0．043 ± 0．0081

0
ハリ

3

9

1

4

0

1

5

4

9

9

1

0

6

4
3

2
6

2

4

6

0

0

6

6

4

0
8

4

± 0．009

0．038 ± 0．0071

0．048 ± 0．0073

0．019 ± 0．0029

0．031 ± 0．0069

0．048 ± 0．011

0．018 ± 0．0055

0．0093 ± 0．0029

0．082 ± 0．026

0．013 ± 0．0051

0．0078 ± 0，0031

0．034 ± 0．0083

0．073 ± 0．018

0．035 ± 0．0079

0．022 ± 0．0049

0．059 ± 0．011

0．042 ± 0．0068

0．016 ± 0．0025

0．048 ± 0．0063

0．14± 0．0190．029 ± 0．0063

0．0018 ± 0．0039

0．038 ± 0．0054

0．087 ± 0．012

0．013 ± 0．0050

0．0087 ± 0．0034

0．057 ± 0．0063

0．065 ± 0．0071

0．047 ± 0．0068

0．022 ± 0．0032

0．038 ± 0．0053

0．043 ± 0．0060

0．042 ± 0．0066

0．028 ± 0．0043

0．045 ± 0．0064

0．12

0．039 ± 0．0071

0．024 ± 0．0044

O

0．017 ± 0．0031

0．025 ± 0．0048

O

0．035 ± 0．0063

ハリ

0．027 ± 0．0044

0．099 ± 0．021

0．051 ± 0．0097

0

O
0

5

3

1

1

2

3

■−

O
O

−

6

−

0

3

0− 0U

0．029 ± 0．0042

0．042 ± 0．0070

230．057 ± 0．0081

0．079 ± 0．013

0．026 ± 0．0083

1

QU O 5
口U
6 61
3 3
8 8

± 0．0170．034 ± 0．0055
0．044 ± 0．0090

1−

1

4

0

6

2

0

3

7

DO

Naha．Oki【洲a0 −September，1997

3 7 9 1 ︵HU 49﹂3 7 4 ■−
4 4つQ
U 3lshinomaki，MIYAG10nagaYra−maChi，NIYAGI（Bq／p・d）

3

August．1997

5

Ginowa〔，Oki【aWa5Tokushima，TOKUSHINA

5

Metsue．SHL ANE

6

Shinguu．YAKAYANA

6

Wakayama，WAKAY川A

9

Tsu「uga，FUKUI

8Hiratsuka，KANAGAWA

5

Yokoha【1a，KANAGAWÅ

1−

Akita，AKITA

OU

Akita，AKけA

2
3 5 7 4 1 3 3 2l l l l l 1 1 2・l l

Juけ，1997

300kuchi，KAGOSH川A

2

Sendai．MtYA引

3

Takachiho−maChi．kJIYAZAK1 13．0

l

14．4

5

uiyazaki．MIYAZAKt

5

9．75

l

Saiki，00汀A

9

lO．5

（Bq／gCa）

0

ll．9

00ita，00ITA

4 9 6 3 1 6 9
1 7 2 6 4 0 8 5

Tomiai−maChi，KUMANOTO（Bq／p・d）± 0．018

9
6

7 4

●・−

■
L
1

Strontiunl−90and Cesium−137in Rice（producting districts）（2）（from Apr．1997to Sep．1997）
TCOntinued fron No．12l of this publication−
Table（2）Strontium−90and Cesiurn−137in Rice

Component
Location
Ash（％）Ca（g／kg） K（g／kg）（Bq／kgwet）（Bq／gCa）（Bq／kgYret）（Bq／gK）

J山y，1997
Sadohara−maChi， lYAZAKI

0．625

0．0け

0．950

0．0032 ± 0．0047

0．19± 0．280，0000 ± 0．0030

0．0000 ± 0．0031

0．538

0．022

0．850

0．0057 ± 0，0053

0．25± 0．240．0056 ± 0．0040

0．0065 ± 0．0047

0．56± 0．260．0022 ± 0．0045

0．0022 ± 0．0045

September，1997
Chiba，CH柑A
Kanazawa，lSHIKAWÅ

0．603

0．026

0．995

0．014 ± 0．0068

Gjfu，G膵∪

0．439

0．025

0．751

0．0045 士 0．0051

0．18± 0．200．0000 ± 0．0031

0．0000 ± 0．0042

0．560

0．022

1．11

0．013 ± 0．0061

0．58± 0．280．0054 ± 0．0045

0．0048 ± 0．0040

0．660

0．033

0．713

0．0055 ± 0．0029

0．17± 0．0900．0027 ± 0．0038

0．0039 ± 0．0054

atsusaka，N［E

（9）

（10）

Strontium−90and Cesium−137in Milk（producting distrjcts for donestic progran）（from Apr．1997to Sep．1997）（3）−1

一COntinued fron No−12l of this publication−

TabFe（3）−1 Strontiun−90and CesiumT137in Milk

Component
LocationAsh（g／R） Ca（g／R） K（g／i2）（Bq／R）（Bq／gCa）（8q／月）（Bq／gK）

uay，1997
0．0柑 ± 0．0069

0．020 ± 0．0077

0．0052 ± 0．0039

0．0035 ± 0．0026

0．031 ± 0．0056

0．027 ± 0．0048

0．0000 ± 0．0048

0．0000 ± 0．0029

0．088 ± 0．013

0，080 ± 0．012

0．045 ± 0．0075

0．0229 ± 0．0049

0．015 ± 0．0063

0．015 ± 0．0076

0．0095 ± 0．0048

0．033 ± 0．0082

0．012 ± 0．0052

0．0078 ± 0．0034

0．018 士 0．0045

0．017 ± 0．0040

0．031 ± 0．0059

0．022 ± 0．0042

0．016 ± 0．0044

0．013 ± 0．0038

0．0042 ± 0．0038

0．0024 ± 0．0022

0．014 ± 0．0069

0．014 ± 0．0067

0．0070 ± 0．0067

0．0046 ± 0．0043

0．031 ± 0．0093

0．026 ± 0．0079

0．013 ± 0．0053

0．0080 ± 0．0032

7

0．028 ± 0．0083

0．025 ± 0．0073

0．0051 ± 0．0070

0．0034 ± 0．0046

90．060 ± 0．011

0．054 ± 0．0097

0．018 ± 0．0073

0．012 ± 0．0049

0．035 ± 0．0083

0．033 ± 0．0080

0．0030 ± 0．0040

0．0018 ± 0．0024

00．026 ± 0．0081

0．024 ± 0．0075

0．011 ± 0．0050

0．0070 ± 0．0031

30．014 ± 0．0068

0．013 ± 0．0064

0．0038 ± 0．0060

0．0026 ± 0，0041

5

0．0088 ± 0．0062

0．0083 ± 0．0058

0．0070 ± 0．0048

0．0045 ± 0．0031

0．017 ± 0．0076

0．015 ± 0．0068

0．0009 ± 0．0064

0．0005 土 0．0040

0．030 ± 0．0086

0．028 ± 0．0080

0．0021 ± 0．0041

0．0014 ± 0．0027

6

0．016 ± 0．0042

0．015 ± 0．0038

0．0094 ± 0．0044

0．0061 ± 0．0028

5

0．899

7

6．71

8

Shinguu，yAKAYANA

0．031 ± 0．0050

0．027 ± 0．0044

0．11± 0．0100．069 ± 0．0067

0．023 ± 0．0046

0．022 ± 0．0045

0．027 ± 0．0056

0．017 ± 0．0034

0．035 ± 0．0057

0．032 ± 0．0052

0．047 ± 0．0073

0．030 ± 0．0047

June，1997
Yamato−naChi．SAGA

5
2
2

1
1

2
7

つエ

8

1

7

5

1

■−−

11

4

1
1

1

6

0・一−

−
1

00
9

1

7

1

1

−

1

4

3

︵U

■

■・・−

1

1

9

4

−

5

1

3

O

1

1

1

2

O

−

■−

4
7
5
6
5

1
1 1

6 5 4 5

1

▲丁

2 1 2

■− ︵U

0

■1

1

0

9

1

1

0

q︶

一−

・−

1

5

−

■−

2

■．■■

5

1

4

O

1

6

29

4

1

QU

3

Tonami，TOYAl仏

7

September．1997

9

Takahara−naChi．ulYAZAKI

4

Kujuu−maChi．001TA

9

Koushi−maChi．KUNANOTO

一−−

9KaYauChi−rnaChi，EHINE

4nO

Takase−maChi，KAGAYA

1

1

Oouda−maChi，NARA

0．037 ± 0．0094

6

3

LJihara−naChi，HYOUGO

1

4

Oouchiyalna−巾ura− ulE

0．016 ± 0，0068

2

4

Hino−maChi．SHGA

4

1−5

Gifu，GIFU

0

1

Takane−naChi，YANANASHI

1

6Oshimizu−naChi，［SHIKAWA

8

8

Fujimi−nUra，GU

0

7

Nishinasuno−naChi，TOC＝tGI
Yachimata，CHIBA

1nO

Mito，18ARAKI

4

Aomori，AOMORITakizaYa−nura，1YATE

1

August．1997

1

6 5 5

Strontium−90and Cesium−137in ilk（producting districts for YHO program）（fron Apr．1997to Sep．1997）−COntinued fron No．121of this publication−
TabFe（3）一2 Strontiun−90and Cesium−137in N＝k（3）−2Component
LocationAsh（g／R） Ca（g／R） K（g／9）

0．017 ± 0．0042

0．0079 ± 0．0052

0．0050 ± 0．0032

0．019 ± 0．0077

0．017 ± 0．0070

0．0080 ± 0．0051

0．0049 ± 0．0031

0．034 ± 0．0062

0．030 ± 0．0055

0．053 ± 0．0077

0．031 ± 0．0045

0．039 ± 0．0088

0．039 ± 0．0088

0．024 ± 0．0077

0．017 ± 0．0053

0．034± 0．0100．031 ± 0．0092

0．0046 ± 0．0041

0．0029 ± 0．0026

0．022 ± 0．0072

0．020 ± 0．0067

0．0000 ± 0．0057

0．0051 ± 0．0031

0．034 ± 0．0093

0．030 ± 0．0084

0．0078 ± 0．0049

0，0055 ± 0．0035

0．031 ± 0．0085

0．029 ± 0．0081

0．010 ± 0．0052

0．0067 ± 0．0034

7

0．053 ± 0．011

0．047 ± 0．0095

0．0054 ± 0．0064

0．0034 ± 0．0040

0．012 ± 0．0074

0．011 ± 0，0069

0．0058 ± 0．0048

0．0038 ± 0．0031

0．021 ± 0．0081

0．019 ± 0．0073

0．018 ± 0．0058

0．011 ± 0．0034

0．027 ± 0．0049

0．026 ± 0．0047

0．0000 ± 0，0036

0．0000 ± 0．0026

6

0．0065 ± 0．0031

0．018 ± 0．0046

4

0．0089 ± 0．0043

0．011 ± 0．0052

2

0．014 ± 0．0058

0．025 ± 0．0046

50．0‖ ± 0．0067

0．028 ± 0．0052

41

0．012 ± 0．0072

1

6

0．0049 ± 0．0028

2

2

0．0063 ± 0．0063

0．0078 ± 0．0043

650．0006 ± 0．0027

0．0057 ± 0．0057

920．0009 ± 0．0040

57

0．032 ± 0．0051

5

8

5

7

7

0

6

0
3

6

1

8
1
5
3
8

5

−
3

∩リ
7
4
5
4
4
5
6
5

0

6

30 3 0 1 4 4 9 3 1 3

60．0071 ± 0，0030

0．035 ± 0．0055

0 0 0 1 0 1 0・−

7

0．0051 ± 0．0070

970．025 ± 0，00丁3

0

7

Matsue，SHlkJANE

0．0029 ± 0．0028

0．028 ± 0．0083

2

7
6

7

September．1997

0．0047 ± 0．0046

1

7

Kajiki−maChi．KAGOSHl A−
2 2 7 1 9 2 0 0
0 1 1 0 1 0 1 1 1

7

Kochi，KOC‖
Yasu−maChi，FUKUOKA

3
1

7

Takamiya−maChi，H（ROSHILJA

0，032 士 0．0085

4 1
0 2
2 1
1 1 97 3
2 534 30 4

Shijounawate．OSAKÅ

0．024 ± 0．0043

0．036 ± 0．0095

0Katsuyama．FUKUI

0．040 ± 0．0053

0．036 ± 0．0066

97

Iwamuro−mura，NllGATA

0．069 ± 0．0092

0．030 ± 0．0088

5

7

Hokudainoujou，HOKKAIDOU
Hachijou−maChi．TOKYO

0．040 ± 0．0052

5

7

August，1997（Bq／gK）

6

7

Kajikトnachj，KAGOSHIMA（Bq／月）

0．030 ± 0．0089

4

7

Yasu−naChi，FUKUOKA

7

Kochi．KOCHI（Bq／gCa）

0．045 ± 0．0058−

Takaniya−naChj．HIROSHIMA

7

舶tsue．S日用ÅNE

6

ShijounaYate．OSAKA

7

Katsuyalna．F〕K〕l0

IYanurO−nUra，NllGATA

6

Hachijou−maChi，TOKYO

4日okudainoujou．HOKKAIDOU

7

May．1997（Bq／R）

4

9

（11）

（12）

Strontium−90and Cesium−137in Milk（cornsuning districts）（frorn Apr，1997to Sep．1997）−COntinued from No，12l of this pubJication−
Table（3）−3 Strontium−90and Cesium−137in Milk（3）−3

Compo［entLocatio［Ash（g／月） Ca（g／R） K（g／R）

04

1．06

Nagasaki．NAGASAKI

80

1．02

Kagoshima，KAGOSHIMA

18

1．06

7．26

1．08

6
6
7
7
6
7

September，1997

1−−

Chikushino，FUKUOKA

−

1．07

−

14

6

0．041 ± 0．0073

0．025 ± 0．0043

0．021 ± 0．0071

0．020 ± 0．0069

0．011 ± 0．0060

0．0078 ± 0．0041

0．026 ± 0．0049

0．027 ± 0、0050

0．020 ± 0．0055

0．013 ± 0．0037

0．022 ± 0．0048

0．020 ± 0．0045

0，016 ± 0．0056

0．010 ± 0．0035

0．036 ± 0，0084

0．034 ± 0．0079

0．039 ± 0．0065

0．026 ± 0．0043

0．017 ± 0．0053

0．016 ± 0．0049

0．020 ± 0．0064

0．012 ± 0．0038

0．011 ± 0．0072

0．010 ± 0．0065

0．013 ± 0．0049

0．0086 ± 0．0031

0．049 ± 0，010

0．045 ± 0．0094

0．042 ± 0．0087

0．026 ± 0．0053

0．028 ± 0．0083

0．027 ± 0，0080

0．038 ± 0．0070

0．024 ± 0．0045

0．032 ± 0．0085

0．030 ± 0．0078

0．015 ± 0．0045

0．0092 ± 0．0028

0．021 ± 0．0040

0．020 ± 0．0037

0．0091 ± 0．0043

0．0057 ± 0．0027

0．031 ± 0．0078

0．031 ± 0．0077

0．0099 ± 0．0051

0．0067 ± 0．0034

0．017 ± 0．0076

0．016 ± 0．0074

0．0082 ± 0．0067

0．0056 ± 0．0046

0．016 ± 0．0063

0．0ほ ± 0．0061

0．011 ± 0．0051

0．0073 ± 0．0033

0．022 ± 0．0053

0．021 ± 0．0050

0．0088 ± 0．0056

0．0055 ± 0．0035

0．020 ± 0．0043

0，019 ± 0．0041

0．0094 ± 0．0071

0．0062 ± 0．0047

0．031 ± 0．0083

0．030 ± 0．0081

0．0049 ± 0．0043

0．0034 ± 0．0030

0，026 ± 0．010

0．024 ± 0．0099

0．0099 ± 0．0045

0．0062 ± 0．0028

0．023 ± 0．010

0．021 ± 0．0092

0．0038 ± 0．0041

0．0025 ± 0．0027−

Kochi，KOCHI

1

1．05

1

94

5

KaYraUChi−maChi．EHINE

70．013 ± 0．0073

5

1．03

5

92

1

Yamaguchi．YANAGUC＝l

4

1．02

5

94

1

Hiroshima．HIROS日用A

7

0．016 ± 0．0048

O．014 ± 0．0082

8

1，07

5

46

7

0．023 ± 0．0069

5

M8tSue．S日用ÅNE

1

1．09

4

00

Se【dai，MIYAGl

0．033 士 0，0048

0．022 ± 0．0069

4

1．03

4

13

Yonago，TOTTO鋸

0．049 ± 0．0072

0．022 ± 0．007Z

6

1．09

1

18

5

1．10

7

3

23

5

1

1．08

Osaka．OSAKA

0．019 ± 0．0056

8

0．982

1

79

28

Nagoya，AIC＝0．029 ± 0．0086

0，014 ± 0．0056

6

1．03

5

74

1

1．12

6

58

1．06

Shizuoka．SHIZUOKA

0．043 ± 0．0086

0．015 ± 0．0058

2

1．04

5

83

64

Fukui，FUKUI

0．047 ± 0．0096

6

7

1．04

1

7

1．11

96

4

7

24

1．08

Niigata，N】lGATA

0．0075 ± 0．0033

4

7

YokohaI柑．KANÅGAWA

0．0099 ± 0．0035

0．012 ± 0．0050

66

Shinjuku．TOKYO

6

Urawa，SAITAl仙

0．015 ± 0．0052

0．016 ± 0．0063︵む 4 8 9 ︵U47

Fukushima，FUKUSHINA

0．041 ± 0．0084

3 6

4

6

Yamagata．YANAGATA（Bq／gK）

0．017 ± 0．0066

4

6

Akit孔 AKITA

7

Sapporo，HOKKAIDOU（Bq／R）

0．043 ± 0．0088

5

August，1997（Bq／gCa）

9 0

1

1．05

5

1．04

8．92

4

7．00

Kyoto，KYOTO

1

Sendai．NIYAG（

QU

May，1997（Bq／R）

−
1 1

8 7
4

−
1

Component

ー37cs

Locatio【Ash（g／R） Ca（g／R） K（g／R）（Bq／月）（Bq／gCa）（Bq／虎）（Bq／gK）

Naga【0．NAGANO

6．70

1．02

1．47

0．024 ± 0．0072

0．024 ± 0．0071

0．012 ± 0．0043

0．0084 ± 0．0029

0kayama，OKAYAMA

7．22

1．08

1．74

0．0089 士 0．0066

0．0083 ± 0．0061

0．010 ± 0．0044

0．0058 ± 0．0025

Yonagusuku−maChi．Okinawa

7．02

1．07

1．49

0．021 ± 0．0049

0．021 ± 0．0046

0．0073 ± 0．0044

0．0049 ± 0．0029

（13）

（14）

Strontium−90and Cesium−137in MiJk（poYdered miLk）（from Apr．1997to Sep．1997）−COntinued fron No，12l of this pub［ication−
Table（3）−4 Strontium−90and Cesium−137in N＝k（3）−4

Co川PO【entLocation
Ash（％）（8q／鹿）（Bq／gCa）（Bq／短）（Bq／gK）ee± 0．0290．030 ± 0．0024

0．28± 0．0200．016 ± 0．0012

0．043 ± 0．0092

0．012 ± 0．0026

0．057 ± 0．0078

0．0095 ± 0．0013

7．97

12．O

17．1

0，59

± 0．0370．049 ± 0．0031

1．6

0．093 ± 0．0027

2．57

4．03

5．42

0．032 ± 0．0085

0．0080 ± 0．0021

0．096 ± 0．0086

0．013 ± 0．0016

2．59

4．22

5．18

0．11

± 0．0140．025 ± 0．0032

0．099 ± 0．0099

0．019 ± 0，0019

2．53

3．44

4．78

0．042 ± 0．0095

0．012 ± 0．0028

0．10

0．022 ± 0．0021

e

a

S

0．36

6．06

E

e

a

S

16．9

3．48

nD

a

S

12．4

2．66

e

a

S

7．97

D

e

a

S

C

P P P P P
m m m m m m

a

S

P

Å

Ju【e，1997

Ca（g／k） K（g／kg）± 0．05± 0．010F

Strontium−90and cesiun−137in Vegetables（producting districts）（from Apr．1997to Sep．1997）（4）−1−COntinued fro汀INo，1210f this pubIication−
Table（4）−1 ：Strontium−90and cesiun−137in Vegetab［esConponent

Locatio【Ash（％）Ca（g／短） K（g／短）（Bq／kgYret）（Bq／kgYet）（Bq／gCa）（Bq／gK）（Cabbege）

July．1997± 0．0220．65± 0．0420．47± 0．020

0．25 ± 0．011

0．610

0．515

1．93

0．33

Tahara−naChi，AICHl

0．657

0．186

2．98

0．011 ± 0．0066

0．059 ± 0．036

0．0000 ± 0．0042

0．0000 ± 0．0014

June．1997
KoushiTmaChi，KUuAMOTO

0．515

0．2柑

2．12

0．025 ± 0．0078

0．11± 0．0360．0023 ± 0．0043

0．0011 ± 0．0020

0．609

0．182

2．31

0．073 ± 0．012

0．40± 0．064

0．21

0．344

0．145

2．43

0．13

± 0．0140．87± 0．0930．011 ± 0．0045

0．0046 ± 0．0018

0．365

0．085

1．52

0．014 ± 0．0072

0．17± 0．0850．0014 ± 0．0035

0．0009 ± 0．0023

0．910

0．026

3．89

0．0000 ± 0．0034± 0．130．073 ± 0．0084

0．019 ± 0．0022

00t孔 SH川ANE（JaDaneSe radish）

May，1997」山y，1997

00ta，SH川ANE± 0．013

0．091 ± 0．0056

August，1997
Hiroshina−maChi．HOKKAIDOU（Onio巾

July．1997
Kunatori−naChi．OSAKA（PotatのJuけ，1997
肌1tSu，AOuORl

0，00（Sp血acいuay．199T
Tahara−naChi，AIC州

1．39

1．10

4．93

0．021 ± 0．0077

0．019 ± 0．0069

0．0040 ± 0．0047

0，00082 ± 0．00095

Koush卜nachi，KUuAuOTO

1．70

0．605

6．44

0．072 ± 0．011

0．12± 0．0190．0037 ± 0．0047

0．00057 ± 0．00072

l．60

0．466

7．31

0．32

0．68

± 0．046

0．024 ± 0．0061

0．0033 士 0．00083

A】guSt，1997
Hiroshina−naChi．HOKKA事DOU± 0．022

（15）

（16）

Strontium−90and cesiun−137in Vegetables（consuming districts）（from Apr．1997to Sep．1997）（4）−2−COntinued fron No．12l of this publicatjon−
Table（4）−2 ：StrontiunT90and cesium−137in Vegetables

Location

Compo【e【tAsh（％）Ca（g／kg） K（g／kg）（Bq／kgwet）（Bq／gCa）（Bq／短wet）（Bq／gK）（JaDaneSe radish）

September，1997
Rifu−naChi，MIYAGI

0．620

0．124

2．67

0，056 ± 0．010

0．45± 0．0840．0060 ± 0．0048

0．0022 ± 0．0018

Urawa．SAけAMA

0．497

0．216

1．96

0．20

± 0．0180．95± 0．084

0．058± 0．0084

0．034

1．98

0．622

8．55

0．071 ± 0．011

0．11± 0．0180．018± 0．0054

0．0021 ± 0．00063

Nijgata．NllGATA
Septenber，1997

1．56

0．232

6．91

0．0040 ± 0．0059

0．017 ± 0．025

0．0043 ± 0．0046

0．00062 ± 0．00067

Urawa．SA汀AMA

1．67

0．317

7．75

0．15

0．47

0．0000 ± 0．0039

0．00000 ± 0．00050± 0．0043（Spinacい舶y．1997
RifリーmaChi．MけA引
J山y．1997± 0．016± 0．050

Strontium−90and Cesiun−137in Tea（Japanese Tea）
（fron Apr．1997to Sep．1997）
一COntinued fron No，12l of this pub＝cation−
Table（5）Strontiun−90and Cesium−137in Tea（5）Conponent
LocationCa（g／短） K（g／kg）

Ash（％）（Bq／kg）（Bq／kg）（Bq／gCa）（Bq／gK）

April，1997
Mifune−maChi，KUMAuOTO

5．66

2．71

17．8

0．21 ± 0．031

0．079 ± 0．011

0．000 ± 0．017

0．00000 ± 0．00097

May，1997
Ikeda−maChi，GIFU

4．95

3．16

17．3

1．2

± 0．050．39± 0．0170．11± 0．026

0．0063 ± 0．0015

Shirakavra−maChi，GIFU

5．06

2．20

19．2

0．35

± 0．0360．16± 0．0160．071 ± 0．025

0．0037 ± 0．0013

1wata，SH［ZUOKA

l，24

0．806

4．37

0．072 ± 0．0066

0．089 ± 0．0082

0．021 ± 0．0051

0．0048 ± 0．0012

Shuzenji−maChi，SHほUOKA

l．47

0．855

5．16

0．32

± 0．0150．37± 0．0170．095 ± 0．010

0．018 ± 0．0020

2．26

21．1

0．35

± 0．0500．15± 0．0220．21± 0．030

0．0098 ± 0．0014± 0．032

0．011 ± 0．0016± 0．070．071 ± 0．0037

00da卜machi．uほ

5．70
5．19

2．69

19．5

0．37

± 0．0520．14± 0．019

1．4

Nara，NARA

5．11

2．49

19．4

0．42

± 0．052

0．17 ± 0．021

0．076 ± 0．022

0．0039 ± 0．0011

Ue−mur8．K〕MAMOTO

4．84

3．38

15．6

0．91

± 0．078

0．27± 0．0230．19± 0．030

0．012 ± 0．0019

Miyakonojou，MIYAZAK1

4．89

乙64

18．4

0，14

± 0．033

0．055 ± 0．013

0．27± 0．032

0．0ほ ± 0．0017

Z．58

19．7

0．22

± 0．0390．085 ± 0．015

し7

0．36

± 0．0490．17± 0．0220．23± 0．033

0．013 ± 0．0019

0．41± 0．0660．16± 0．0260．46± 0．053

0．027 ± 0．0031

1．2± 0．060．42± 0．0200．35± 0．038

0．018 ± 0．0020± 0．0120．009 ± 0．013

0．00058 ± 0．00032

K洲ami［ami−maChi，MIYAZAK1 5．19

2

−

2

2

0

2

2

7

5

6

9

1

5

2

7

5

5

1

7

3

5

6

6

6

Miyanojou−rnaChi，KAGOSHILJA

6

4Chiran−rnaChi，KAGOS日用A

1

5

0

Uji，KYOTO

2

5

Kaya−maChi，KYOTO

9

5

−

けuma，SAけAMA
Tokorozawa，SAITAuA

5June．1997

0U

Nar孔IMRA

1± 0．022

2

0．31

7

± 0．08

1

1．1

7

19．2

1

3．49

9

5．60

81 5 亡U O
0 5 7 7

Kameyama．Mほ

0．22± 0，080．088 ± 0．0039

0．27± 0．030

0．10

0．26

± 0．028

0．093 ± 0．0099

1．3± 0．070．070 ± 0．0035

0．56± 0．040

0．20

0．58

± 0．049

0．028 ± 0．0024

8
7
（17）

± 0．014

Strontiun−90and cesiun−137in Sea Fish

（6）

（18）

（from Apr．1997to Sep．1997）
一COntinued from No，12l of this pubLicatjon−
Table（5）：Strontium−90and cesium−137in Sea Fish

Location

Component
Ash（X）Ca（g／kg） K（g／kg）（Bq／kgYet）（Bq／gCa）（8q／也Wet）（Bq／gK）（Amodytes DerSOnatuS）
Ap「il，1997

Akashi，HYOUGO

2．32

3．16

4．38

0．0042 ± 0．0034

1．66

1．71

3．97

0．010

1．17

0．049

3．53

2．72

5．60

1．12

0．0013 ± 0．0011

0．074 ± 0．0088

0．017 ± 0．0020

0．0058 士 0．0032

0．15± 0．0120．038 ± 0．0030

0．0008 士 0．0030

0，017

0．23

± 0，0140．065 ± 0．0039

2．94

0．0013 土 0．0038

0．00023 ± 0．00068

0．043 ± 0．0071

0．015 ± 0．0024

0．433

3．22

0．0013 ± 0．0045

0．003 ± 0．O10

0．053 ± 0．0079

0．017 ± 0．0025

1．37

0．452

3．88

0，0000 ± 0．0048

0．000 ± 0．011

0．081 ± 0，0087

0．021 ± 0．0022

1．53

0．246

4．89

0．0062 ± 0．0052

0．025 ± 0，021

0．17± 0．0120．034 ± 0．0024

1．35

0．309

4．24

0．0007 ± 0．0046

0，002 ± 0．015

0．16± 0．0120．038 ± 0．0028

1．57

乙10

3．42

0．016 ± 0．0064

0．0076 ± 0．0030

0．13± 0．0110．037 ± 0．0032（Hexagramos otakii）

Septenber，1997
Souma，F〕KUSH一脈± 0．0055（KatsuYOnUS Delamis）】ay，1997

Tosa．KOCHl± 0．062（Lirnanda herzensteini）」une．1997

Sendai．ulYAGI（uugi［ceDhaIus）Åugust．1997

uorodomi−maChi，SAGA（Oncorhynchus keta）

September．1997
Uraka■a−qlaChi．HOKKA［DOU（Pagrus s扇

May．1997
伽ase．mE」山y．1997

Fukuoka，FUKUOKA
A］guSt，】997

Tennou−maChi．AKけA（Sardinops nelanostictus）

137csConponent

Location

Ash（％）Ca（g／kg） K（g／kg）（Bq／kgvet）（Bq／gCa）（8q／短Wet）（Bq／gK）Åugust．1997

Yanagata，YAuAGATA

2．31

5．12

1．63

0．0054 ± 0．0056

1．33

0．547

3．72

0．0013 ± 0．0039

5．97

16．1

2．66

0．031 ± 0．0077

3．97

8．73

2．99

0．015 ± 0．0045

0．025 ± 0．0057

0．015

0．15 ± 0．011

0．040 ± 0．0030

0．0020 ± 0．00048

0．095 ± 0．010

0．036 ± 0．0039

0．0017 ± 0．00052

0．10

0．034 ± 0．0034

0，0011± 0．0011± 0．0035（Sconber sD）

August，1997
Natsuyana，EH川E（Sebastiscus narmoratus）

0．0024 ± 0．0071

uay．1997
日amada．SH冊州E（Si＝ago s山

山ne，1997
Ninanichita−maChi．AIC＝（19）± 0．010（20）Sea FishJapanese nameEnglish namee

Scientific name

Magarei

Brown sole
Gray mul let

Mugllcephalus

Bora
Maiwashi

LirTlanda herzensteini

Saba

Mackere】

melanostictus
Sa「dinops
Scomb針「三坦AinameFat green＝ng

Hexagrammos otakiiiTailkanagoSea bream
Japanese sand lance

Ammodytes

KatsuoSkipJack tuna
Chum Salmon

Oncorhynchus Keta

Scorpion−fishSebastiscus rTlarmOratUS

Whiting

町ago呈旦Sake
KasagoKisu

Japanese p＝chard

PagruS圭旦
PerSOnatuS

Katsuwonus

Strontium−90and cesium−137in Freshwater Fish（from Apr．1997to Sep．1997）（7）−COntinued from No．12l of this publication−
Table（6）：Strontium−90and cesium−137in Freshwater Fish

しocation

Compo【e［tAsh（l）Ca（g／短） K（g／也）（Bq／短Wet）（Bq／厄Wet）（Bq／gCa）（Bq／gK）（Carassius auratus）
Juty．1997
tshikar卜mchi．HOKKA柑0〕

5．20

16．1

2．55

0．50

l．11

0．267

3．63

0．015 ± 0．0040

2．88

7．89

2．05

1．0

l．20

0．466

3．23

0，014 ± 0．0062± 0．027

0．031 ± 0．0017

0．062± 0．0081

0．024± 0．0032

0．056 ± 0．O15

0．32± 0．0170．088 ± 0．0046± 0．0050．14± 0．0120．068 ± 0．0059

0．031 ± 0．013

0．093± 0．0094（CyDri【uS CarDio）
May，1997
Kasunigaura−lake．1BARAKIÅ］gu＄t．1997Åkita，AK】TA± 0．04

0．13（SalveIinus（eucomaeni
Septenber，1997
Fukushima．FUKUSHINA

（21）

0，029

± 0．0029

（22）Freshwater FishJapanese nameEnglish namee

Scientific name
Carassius anratus

CypriM CarP用
Salvelinus Leucomaenis

Strontium−90and cesiun−137in Shellfish（8）（fron Apr．1997to Sep．1997）−COntinued fron No．1210f this pub＝cation一
Table（7）：Strontium−90and cesium−137in She‡lfish

Location

Compone【tAsh（％）Ca（g／kg） K（g／kg）（Bq／kgYet）（Bq／gCa）（Bq／kgwet）（Bq／gK）（Nytilus eduIis）」une，1997

仙JtSU，AOM剛

3．01

0．590

1．50

0．0084 ± 0．0084

0．014 ± 0．0日

0．0086 ± 0．0053

0．0057 ± 0．0035

1．57

0．685

1．82

0．0077 ± 0．0055

0．0＝ ± 0．0080

0．013 ± 0．0046

0．0073 ± 0．0025

2．04

0．657

3．48

0．010 ± 0．0069

0．015 ± 0．010

0．035 ± 0．011

Ryotsu，NIIGATA

2．20

0．564

2．85

0．006 ± 0．011

0．011 ± 0．019

0．007 ± 0．011

0．0024 ± 0．0038】0nZen−maChi，lSHKÅWÅ

2．64

1．59

1．63

0．0090 ± 0．0038

0．0057 ± 0．0024

0．031 ± 0．0064

0．019

2．85

2．38

2．82

0．015 ± 0．0060

0．0063 ± 0．0025

0．029（RuditaDeS DhilliDinarum）
uay，1997
Konagai−naChi．NAGASAKI
June，1997
Ninamichita−maChi，AIC‖l

0．010 ± 0．0030（Turbo cornutus）Åp「il，1997± 0．0039

July，1997
Sakata．Y山肌GÅTA（23）± 0．0058

0．010± 0．0021

（24）Shel lfish

Japanese nameEnglish namee

Scientific nameMurasaki igai
Asari

Common bIue mussel
Japanese littleneckk

町tiFu享edu＝s

Sazae

Horned turban

Turbo cornutus

Ruditapes

Phillipinarum

Strontium−90and cesium−137in SeaYeeds（9）（from Apr．1997to Sep．1997）−COntinued from No，12l of this pubIication−
Table（8）：Strontiun−90and cesium−137in Seayreeds

Compo［entしocation

Ash（％）Ca（g／也） K（g／短）（Bq／kgwet）（Bq／gCa）（Bq／鹿Wet）（Bq／gK）（Undaria Dimatifida）
Ap「iI，1997

Ryotsu．MIGATA

2．23

0．865

4．39

0，015 ± 0．0062

0．017 ± 0．0072

0．026 ± 0．0061

0．0059 ± 0．0014

Monzen−maChi，lSHIKAWA

3．86

0．841

6．72

0．022 ± 0．0048

0．026 ± 0．0057

0．024 ± 0．0056

0．0035 ± 0．00084

uutsu，AOLJORt

2．26

0，710

4．95

0．021 ± 0．0068

0．030 ± 0．0096

0．024 ± 0．0061

0．0048 ± 0．0012

F】kaura−maChi，AOMOR1

1．88

0．033 ± 0．0076
0．030 ± 0．0051

0．021 ± 0．0055

0．0045 ± 0．0012

2．42

4．61
4．22

0，047 ± 0．011

Sakata．YAMAGATA

0．701
1．22

0．025 ± 0．0042

0．025 ± 0．0058

0．0060 ± 0．0014

uay．1997

（25）

（26）

Seaweeds
Japanese nameEnglish namee

Scientific name

WakameWakame seaweed

Undaria pinnatifida

＊ ＊ T o t a］ Die t ＊：＊くStrontium−90〉

くCesi】m−137〉（Bq／p・d）（Bq／p・d）。−Sapporo−…・K且8hi■aZaki
卜・川Fukuob

1995

1g96

1g94

1gg7

Fig．1

（27）

19g5

1g96

19g7

（28）

＊ ＊ Ric e（p r o d u cing dis t ric t s） ＊ 米
くStrontium−90〉

くCes山m−137〉（Bq／kgwet）（Bq／kgwet）

ーー【写hlk8rl−¶aChl ▲−−・Chlba 9・・・・・Chiku5hino

1995

1996

1994

Fig．2

1995

1gg6

1997

＊ ＊ MiIk（p r o d u cing dis t ric t s f o r dome s tic p r og r am）
くCesi］m−137〉

くStro【tium−90〉（Bq／月）（Bq／月）○一丁aklZal帽−¶Ura −一丁さk∂ne−1柁にhi 9−▲・Kou宇hi一冊Chi

19g4

1995

1996

1994

1g97

Fig．3−1

（29）

1995

1996

1997

（30）

＊ ＊ Milk（p r o d u cin g dis t ric t s f o r WHO p r og r am） ＊くStrontiurn−90〉

くCesium−137〉（Bq／月）（Bq／月）−一一KさtSUy蘭
○一帖ku由IⅧUJOu 9・・・・K∂jlkl一冊Chi

1994

1995

1996

1gg4

1997

Fig．3−2

1995

1996

1997

＊ ＊ Milk（c o n s uming dis t ric t s） ＊ ＊くCesium−137〉

くStrontium−90〉（Bq／月）（Bq／月）

Fig．3−3

（31）

（32）

＊＊ Powd e r e d Milk ＊＊くStrontium−90〉

くCesium−137〉（Bq／也）（Bq／短）

ーー・・・・Sa▲ple

ト S且■ple
9一仙・S且▲ple

1994

1995

1996

1997

1993

Fig．3−4

1994

1995

1998

1g97

＊ ＊ Ve g e t a b［e s（p r o d u cin g dis t ric t s） ＊＊くStrontium−90〉

くCesium−137〉（Bq／kgwet）（Bq／也Wet）○−−uku8hi■a▲−−−・Chiba▼・■…・・T血t8u

1993

1994

1g95

1996

1g96

19g7

Fig．4−1

（33）

19g7

（34）

＊ ＊ Vege t able s（c onsuming dis t ric t s） ＊ ＊くStrontium−90〉

くCesium−137〉（Bq／kgwet）（Bq／也Wet）。−Akita■−−−Ⅷiig且t且

9・……¶唖8akl

1g94

Fig．4−2

1995

1996

＊ ＊ Te a（Ja p a n e s e Te a） ＊ ＊くStrontium−90〉

くCesium−137〉（Bq／短）（Bq／也）

9・・…・・Chiran−岨ehiーーK且■eya血且 小一・Kaya一岨Chi

1994

1995

1g96

1997

1994

Fjg．5

（35）

1995

1996

1997

（36）

＊＊ S e a Fis h ＊ ＊くStronti】m−90〉

くCesium−137〉（Bq／畑Wet）（Bq／也Wet）。−Hut8u■−−−Seldai，仙Nii払h

19g4

19g5

19g6

19g7

19g4

Fig．6

1995

1g96

1g97

＊ 米 F r e s hwa t e r Fis h ＊ ＊くCesium−137〉

くStrontium−90〉（Bq／短Wet）（Bq／也Wet）

Fig．7

（37）

（38）

＊＊ Sh ellfis h ＊ ＊くStro〔tium−90〉

くCesium−137〉（Bq／也Wet）（Bq／kgwet）●−S血ta▲−…Ryot8u

1994

Fig．8

1995

1996

1997

米 ＊ Se awe e d s ＊ ＊くStro〔tium−90〉

くCesium−137〉（Bq／kgwet）（Bq／鹿Wet）○−Mut8u
ト Ryot且u
トー・・・Hiro8hita

1994

Fig．9

（39）

1995

1996

1997

＊＊SamplingLocationsinJapan＊＊h土ma○

38：Matsuyama
39：Yamaguchi

3：Morioka
4：Akita

5：Sendai

40：00ita
41：Fukuokaa

8：N土⊥gata
9：M土t0

10：Utsunomlya

ll：Ch⊥ba
12：Urawa

13：Shinjuku
14：Maebashi
圭喜…￥喜宣言呂三maa

19：Kanazawa
20：Shizuoka
21：G⊥fu

22：Fuku⊥
23：Nag■Oya
24：Tsu25：00tSu

26：Kyot0
27：Nara28：Osaka

29：Tottor土
30：Kobe
31：Wakayama

32：Okayama
33：Matsue
34：Tokushima
35：Takamatsu