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Home , Akita (city), Maruyama River, Sakawa River, Toyohira River

RADIOACTIV SURVEY D｣A ln Al)ri11963,in compli seLforthbytheJapanAtomi the Division oE Radioactiv Institute ofRadiologicalSci( 1.Collect,rCCOrd and on radiation from Natiorl

2.Analyze theinform之】 3.Establish a radiatior exchange center. As a p;lrt Of thc asく thc Nationwidc R;ldioactiv Were aSSClnbled an〔1coll叩il Prcscntl)1ans are toissuet On a quarterly basis. For furtherinformatioI

POrtedin thisissue,rCadcr5 COntributorsindicatedin th RadioactivitySurveyDa

inJapan

Number 4

AⅦguSt1964

Comtents

Page

MeteorogictlData I)ieta

Strontium-90and Cesium-137in Rain andDry Strontium-90and Cesiu] Fallout(Jbpan AnalyticalChemistry (肋如彿αZ血βま宜紬fβ Rβgβαγ¢九九β招%fβ)………………….1 ぶ¢宜β%¢ββ)‥.‥‥‥. (九pα≠A≠α‡〃抽αZ( GeograpbicalData ∫九βf宜紬fβ)‥.‥.‥‥ Strontium-90and Cesium-137in Soil Strontium-90and Cesiul (抽出0耽α£∫朋f宜f≠fβげ月αd宜0～og宜¢α乙 (九pα彿A≠α如£¢αい ぶβ£β≠¢ββ)‥.‥‥‥‥.‥‥‥‥‥.‥‥‥ J九β£宜紬fβ)‥‥‥‥‥ (九pα彿A≠α‡〃士官¢αZC九β刑由fγyRβg紺γ¢九 (乃αγαg宜Pγ小β£≠γβ 力ほ抽加ゎ)…………………………‥ 7 Strontium-90and Cesiu] Water Data (九pαれA%α如ま¢αヱ･ Strontium-90and Cesium-137in City Water ∫れβf宜ねfβ)‥‥.‥‥. (抽出0≠α～∫≠βま宜ねまβq′Rαd宜0わgieα£ Strontium-90andCesiuI ぶ¢宜β竹βββ).‥‥‥‥‥‥.‥‥‥‥‥.‥.‥ (tねpα雅Aれα如宜eα‡･ (九pα≠A≠αZyfま¢α乙C九β例言8fγyRβββαγC九 ∫那f宜f髄fβ).‥‥‥‥. ● MeteorologlCalData

Strontium-90and Cesium-137in Rain and Dry Fallout

(九pα彿A≠α如宜¢α‡C九β例言β£γ財月βββαγC九∫れβ£加古β)

SinceMay1963,theJapanAnalyticalChemistry StrOntium and cesium c王 ResearchInstitute,On COmmission bytheScience COlumn fi11ed with sodil] andTechnologyAgency,hasmeasuredstrontium-90 resin(Dowex 50W-Ⅹ8, and cesium-137 contentin monthly deposits at COlumn was sent totheJ

VariouslocationsthroughoutJapan.Samplingand ResearchInstitute for m. for Pre-treatment concentration have been carried used wasillustratedin Outby24prefecturalpublic healthlaboratories. this publication. The tray recommended by the Science and After a fraction conl TechnologyAgencyhasacollectionareaof5,000cm2, and cesium-137was elut( to andis exposed rain and dust throughout the ChemicalanalysIS WaS Ca二 depth month･The of waterin the trayiskept recommendedbytheScien to atlOmm preventdust from beingblown away. Results obtained du】 Attheendofeachmonth,Waterinthe七rayand 1963to Mareh1964are∈ to WateruSed wash the tray are combined with Tablel.9(･Sr and137Csin Rain and Dry Fa1lout -Dec63 ByT.Asari,M･ andM･Kurod (J叩αルAヶ乙αヱy£宜¢α～Cんβmぬfγy月8β紺γ一

station D認諾n Pre?$tion(m温2)

Deeember1963

Sapporo,HOKXAIDO 28 84.2 1.10 ,AOM:ORI 27 109.8 1.91 ,MIYAGI 36 20.6 0.24 ,AKITA 27 153.6 2.87 Mito,IBARAGI 36 12.0 0.30

Kumagaya, 35 13.8 0.09 35 29.8 0.11 ,KANAGAWA 35 35.0 0.31 ,NIIGATA 31 173.0 2.94 ,ISHIKAWA 31 203.5 3.01

Fukd, 29 207.7 3.97 ,SHIZUOKA 36 39.0 0.27 ,AICHI 31 63.4 0.22 Eyoto,EYOTO 31 19.0 0.80 ,OSAXA 35 23.3 0.33

Eobe,HYOGO 33 16.4 0 ● 3 4

Wakayama, 31 23.6 0 ● 3 9

Tottori, 35 124.0 2 ■ 2 5

Okayama, 31 21.6 0 ● 2 5

Hiroshima, 31 27.3 0 ● 2 4

0 ● 3 0 Eoebi,EOCEI 31 2 5 ● 4

● ,FUKUOKA 31 7 3 ● 1 1 1 2

0 ● 98 ,NAGASAKI 33 8 0 ● 4 nO ,KAGOSHIMA 31 6 7 ● 0 0 ■ 4

Ja∬‖皿ary1964

Sapporo,HOKEAIDO 3 4 95.5 l ● 7926575108 Aomori,AOMORI 3 1 805.0 1 ●

Sendai,MIYAGI 2 6 107.3 0 ● Akita,AKITA 3 1 160.0 2 ●

Mito,IBARAGI 2 6 120.0 0 ●

Kumagaya,SAITAMA 2 5 45.6 0 ● 2433731941

Tokyo 2 7 144.6 1 ●

Yokohama,KANAGAWA 2 6 159.4 0 ●

Niigata,NIIGATA 3 1 119.1 2 ●

Kanazawa,ISHIKAWA 3 1 216.7 3 ●

Fukui,FUKUI 3 4 169.7 3 ● 082058

Shizuoka,SHIZUOKA 2 6 178.1 1 ●

3 1 80.5 0 ● Table(1)9"Srand137CsinRainandDry Fallout -Dec63toM

Duration Precipitation ワ√lSr (days) (mm) (me/km2)

February1964

1 ● 1471359146 Sapporo, 2929302629 112.5

Aomori,AOMORI 155.0 0 ●

Sendai,MIYAGI 43.1 0 ●

Akita,AKITA 55.7 1 ●

Mito,IBARAGI 58.0 0 ●

60.2 0 ● 4556691685 Kumagaya,SAITAMA 3129312929

Tokyo 64.0 0 ●

Yokohama,KANAGAWA 63.9 0 ●

Niigata,NIIGATA 107.0 2 ■

Kanazawa,ISHIKAWA 160.6 2 ●

182.7 0 ● 6961575926 Fukui,FUKUI 2829292930

Shizuoka,SHIZUOKA 73.5 0 ■

Nagoya,AICⅡI 71.9 0 ●

Kyoto,ⅩYOTO 71.1 0 ●

Osaka,OSAEA 88.7 0 ■

●

65.4 0 5633255260 Eobe,HYOGO 2929282929

Wakayama,WAKAYAMA 47.7 0 ●

Tottori,TOTTORI 193.2 4 ●

Okayama,OKAYAMA 73.9 0 ●

Hiroshima,HIROSHIMA 53.7 0 ●

● 83310308 Eoehi,EOCHI 2 9 6 7 ● 4 0

Fukuoka,FUKUOKA 2 9 6 2 ● 1 1 ●

● Nagasaki,NAGASAE.I 2 9 5 7 ● 0 1

Kagoshima,KAGOSHIMA 3 0 9 7 ● 7 1 ●

MarcI11964

2 ● 7 6 Sapporo,HOKKAIDO 3131292231 13.4

Aomori,AOMORI 281.0 3 ● 3 1

Sendai,MIYAGI 53.0 1 ● 1 0

Akita,AKITA 109.3 2 ● 7 0

Mito,IBARAGI 76.0 0 ● 9 2

00 57.3 0 ● 8 Kumagaya,SAITAMA 2931303130

Tokyo 99.7 0 ● 4 ▲4一6

Yokohama,KANAGAWA 127.8 2 ● 1

Niigata,NIIGATA 98.8 2 ● 1 2 qU Kanazawa,ISHIKAWA 131.6 ● 4 5

3 ● 4 9 Fukui,FUKUI 333131 143.1

Shizuoka,SHIZロOEA 124.5 1 ● 7 3

Nagoya,AICHI 114.2 1 ● 8 6 Table2showsthemonthlyvaluesofstrontium- by the 24 90 and cesium-137 averaged stations duringtheperiodMay1963toMarch1964･Table

3andFigurelshowsthetotalamountofstrontium-

90andcesium-137deposits duringtheperiodJuly 1963to Marcb1964.

Table4shows the ratio of strontium-89to

strontium-90andcesium-137tostrontium-90during theperiodDecember1963toMarch1964･ l甜 90sr137cs

Fukui sC

Figurel.9uSr and137CsinDeposits

Table2.MonthlyMeanValuesof24Stations -May63to

Number of Stぎ Stations Pre悪評On S豊プ㌫90

May63 252.7 4.14 Table3･TotalAmountof研Srand137Cs -Ju163to Mar64

Strontium-90 Cesium-137 Station Station Stronl (mc/km2) (mc/km2) (me

Sapporo 15.32 27.58 Eyoto 8 Aomori 13.53 11.70 Osaka 4 Sendai 8.23 16.31 Eobe 5 Akita 20.25 24.30 Wakayama 4 Mito 9.38 14.13 Tottol･i 1 7 Enmagaya 9.35 16.13 Okayama 5 Tokyo 7.98 12.66 Hiroshima 6 Yokobama 11.48 15.81 Eoehi 1 1 Niigata 18.02 24.27 Fukuoka 7 Xanazawa 19.34 26.93 Nagasaki 9 Fukui 17.91 24.87 Xagosbima 8 Sbizuoka 9.88 13.84 Nagoya 7.74 13●42

Table4･Ratioof89Srto90Srand13TCsto9OSr(overO･5mc/km2)inDeposits

S9Sr/90Sr Station Dee63 Jan64 万一eb D e e 6 3 J a n 6 4

Sapporo 0･40･41･Ol･1-■0･40･80･51･2 l･70･9一1･6一一一一1･51･2 0･80･62･11･5一一1･92･30･31･0

l･54･5■0･9-二■l･00･7 一一一〇･50･3 Aomori 0･30･7一二一㌫0･90･5一一〇･50･9一〇･3一 Sendai Akita Mito

XⅦmagaya Tokyo 二〇･30･50･2 Yokobama Niigata Xanazawa

FukⅥi 0･8--1･1一 1･20･31･20･9一 Shizuoka 0･60･30･2㍍ 1･5一一㌍一一 1･11･52･5㌍一一 Nagoya Xyoto Osaka

Xobe 0･30･4 Wakayama GeographicalData

Strontium-90and Cesium-137in Soil

SinceJune1963,StrOntium-90andcesium-137 Public Health,and

Sciences.The sam contentin soilhas been analyzed at4institutes, NationalInstitute RadiologicalSciences outby prefectural -the of (shownin PartI), AnalyticalChemistry sent to theseinstit一 ResearchInstitute(showninPartII),Instituteof

PartI(肋如彿αZ九β招≠£βげ加d宜oZog宜cαZぶc励cββ)

The NationalInstituteof RadiologicalSciences for severalyears. from7pre一 dusts be blow ischarged with analysIS Of samples could fectures-Hokkaido,Niigata,Tokyo,Shizuoka, could 負owin,Wer Aichi,OsakaandFukuoka,inaresearcheぼortto from2spots,1-21Ⅵ

from was to ma determine the removalrate of radionuclides mixed various soils to rivers. collected consisted 5cmin depth.Sal Two types of soilsamples were collected at Figure2. eachprefecture･Onewassoilfrom=grassland‖, The grass and andtheotherfrom=grasslesslandり･Thesampling by a scree sites chosenwereflat anduncultivatedforatleast removed

Table5.90Sr and137Csin Soil -Jun63` By M.Saiki,H.Kamada a (Ⅳαf宜0耽αヱ九gf肋Ifβげ｣

Location Type(m温2)(m:温2) Loeation

Juれe1963 November1963 0saka,OSAXA green 19 61 Sapporo,HOXX｣ ,OSAEA bare 29 22 July1963 Sbimizu,SHIZロ and cesiumin the treated soilsamples were ex- tracted with hydrochloric acid.The solution was analyzed for strontium-90and cesium-137content using the method recommended by theScienceand Technology Agency.

Results obtained during the periodJune to December1963are shownin Table 5.

｡♂ 0 100

Figure2.Sampling Location of Soil(PartIandII)

PartII(ゐpα彿A≠α如宜¢α£Cんβ刑ぬfγy屈βββαγC九∫朋舌宜吉保まβ)

TheJapan AnalyticalChemistry Research Sampling procedures

l■ ■■ ■■ ● ● 1l l ■l ･t Soil Table6.90Sr and13TCsin -Jun63to M

By T.Asari,Aq.Chiba and M.妻 (Jdp∽Aヶlα柳宜cα～C九βmぬ舌γy

Dr Location Type (mc/km2)(mc/km2) weightkg

June1963

∩り ●

Sapporo,HOEEAIDO b areree｡arereesare 3 1 6 7

Xumagaya,SAITAMA g 1 8 3 8 6 ● 0

b 7 9 5 ● 5

ウリ Hamamat8u,SHIZUOKA g 1 3 2 5 ■ 2

b 1 3 3 1 6 ● 9

Sawara,FUKUOEA b 1 7 3 3 7 ● 3

July1963

Sapporo,HOKEAIDO green 8712131616 201621303424 1 0 ● 7

// // bare 1 4 ● 0

Hamamatsu,SHIZUOXA green 5 ● 1

// // bare 7 ● 8

0U Eobe,HYOGO green 6 ●

// // bare 1 0 ● 6

Augu如1963

Kumagaya,SAITAMA green 2 8 502675528145 5 ● 9

// // bare 8 8 ● 3

Nagaoka,NIIGATA green 4 7 7 ● 5

bare 1 9 1 4 ● 0

Murakami,NIIGATA green 4 3 7 ● 9

// // bare 2 5 8 ● 9

November1963

Sapporo,HOXEAIDO green 2 5 5 4 1 3 ● 6

bare 1 5 3 0 1 4 ● 1

Akasbi,HYOGO green 1 5 3 1 5 ● 9

// // bare 8 13 6 8 ● 3

De(:ember1963

Kumagaya,SAITAMA green 2 7 5 4 6 ● 4

// // bare 1 5 5 2 8 ● 3

Nagaoka,NIIGATA green 3 4 7 4 6 ● 8

// // baI･e 3 4 7 5 14 ■ 7

Hamamatsu,SHIZUOKA green 5 0 5 6 7 ● 1

// // bare 2 2 2 1 8 ● 4

Sawara,FロⅩロOEA green 2 1 4 2 8 ● 6

// // bare 1 1 1 7 7 ● 0

February1964

q∂ Eumagaya,SAITAMA green 2 3 4 5 ● 6

// // bare 1 6 2 1 6 ● 2 ウ】 Hamamatslユ,SHIZUOKA green 6 4 4 8 ● 9

// // bare 2 9 5 2 9 一 8 Water Data

Strontium-90and Cesium-137illCity Water

SinceDecember1961,theNationalInstituteof transfered to theJaI RadiologicalScienceshasanalyzedthestrontium-90 ResearchInstitute(Par andCesium-137contentin citywater･=owever, treatmentforconcentra in April1963,a majar portionofthisworkwas by24prefecturalpublic

PartI(Ⅳ元日0雅αg血βf加£βげ忍αdわZog宜¢α‡ぶ¢宜β彿¢β8)

At present,the NationalInstitute of Radio- InstituteofRadiological; logicalSciencesisin charge of the analysis of Public healthlaborator3 StrOntium-90andcesium-137contentincitywater i11ustratedin Figure4,

SamPlesfromTokyo,NiigataandOsakaprefectures, Cation.Ateachprefectu to compare the amount ofradionuclidesin=source alOOliter water sampll =treated from Water= and water= collected the COlumn at the rate ofl: Same Water SupPly system. COlumn =A=wassentba To tyPeS accomplish this,tWO Of city water Of RadiologicalSciences. SamPles were collectedonce a month at one city At the National in =source each prefecture.One the water= coト Sciences,after 21iters 1ectedbeforethetreatment,andtheother,=treated passed through the colu: tap. Water"collected from a by complexionization, To concentrate strontium-90and cesium-137, SOrbed on the resin werl theion exchange method has beenused.An=A= hydrochloric acid.The type column,fi1led with sodium cation exchange WaS analyzed using th( resin(Dowex50w-Ⅹ8,50-80mesh),andlOOmlof the Science and Technol. Table7.リ‖Sr andl･i7Csin Source and Treated Water By M.Saiki,H.Kamada and E.Sl (Ⅳαと′わ托αヱJ舶£′よわ↓ま¢げ忍α(ヱ′最叩

City Source Type Date Ut;Sr/LfEC/l

September1963

(ソ】 こリ Tokyo sf. S W 0.35 HT W 2 5 0.3i)

Niigata,NIIGATA sf. S W 2 7 0.81 // // T W 2 7 0.74

October1963

ウU Tokyo Edo River sf. S W l 0.35 // T W 3 l 0.35

Osaka,OSAEA sf. S W 1 1 0.77 // // T W 1 4 0.73

December1963 Tokyo Edo River sf. S W 1 l 0 2 8

T W 1 1 0 ● 2 2 ウ】 0 Niigata,NIIGATA Agano River sf. S W 4 ● 8 1

// T W 2 4 0 ● 7 0

February196i

√lU ウ]βU Tokyo Edo River sf. S W 1 ウ一2

ハU ウ】一D // T=S二T W 1 2

Osaka,OSAEA Yodo River sf. W 4 O 7 // // W 1八U O 6 8

// // S W 2 7 O 7 5

March1961

Niigata,NIIGATA Agano River sf. 3 0 ● 5 2 qd q∂ // 0 ● 2

たU Osaka,OSAEA Yodo River sf. 4 0 ● 5

*By notice from each prefectul･alpublic healthlaboratory SW and TWindicates Source Water and Treated Water respectivily PartII(J叩αれA彿α～yf宜cα～C九β刑ねfγy月βββαγC九九βま乞わl£β)

SinceMay1963,theJapanAnalyticalChemistry =Source water=is the ResearchInstitute,On COmmission by Science and Sample being collected. Technology Agency,has analyzed thestrontium-90 The analyticalprocedu and cesium-137 contentin city water from 21 as that usedin PartI(Nal Prefectures once a month,tO COntinue the work logicalSciences).

CarriedoutbytheNationalInstituteof RadiologlCal Results obtained durin SciencesuptoMarch1963. to March1964are showni】

Table8.JUSr and137Csin Source Water -May6: By T.Asari,M.Chiba and M.Kuro (Jdpα雅A別項何奴d C領珊涙由･y兄

仙Sr 13TCs Date /∠｡"C/～/`〃e/～

May1963

Odawara,KANAGAWA rb. 10May O.03 0 ■ 031006 ● 8 Okayama,OKAYAMA AsahiRiver rb. 17May O.69 0 ● ● 0 Tottori,TOTTORI BitaniStoring Reservoir sf. 23May O.56 0 ● 0

June,Jnly1963

Sapporo,HOKKAIDO 10Jun 0 ● 6815831861 ● ● sf. 3740090324 1 Aomori,AOMORI YokouchiRiver sf. llJul 0 ● ● ● 8 Sendai,MIYAGI Okura Aoshita Rivers and sf. 18Jun 0 _ ● ● 8 Akita,AKITA AsahiRiver sf. 18Jun 0 - ● 6 Mito,IBARAGI Naka River sf.and rb. 14Jun 0 ● ● ● 1

Urawa,SAITAMA Well 29Jun 0 0 6 0 ■ 〇3 7 ● 4 ,KANAGAWA Sakawa River ● rb. llJu1 0 0 6 0 〇2 6 ● 8 Kanazawa,ISHIKAWA SaiRiver sf.and rb. 22Jun 0 8 1 0 ● 〇7 7 ● 2 Shimizu,SHIZUOKA Okitsu River rb. 13Jnn 0 1 5 0 ● 2 0 7 ● 6 Nagoya,AICHI nO (ソ一 Kino River sf. 24Jun 0 3 0 ● 1 6 一 9

Eyoto.EYOTO Source Mar Table8.抑Sr andl･i7Csin Water -May G3to

仙Sr l:ユ7Cs Source Date /隼祀/`/∠/∠C/ヱ

August,September1963

Sapporo,HOKKAIDO Toyohira River sf. 6Aug 〇● 3637646030 0 伯25461022 Sep Aomol･i,AOMORI YokouchiRiver sf. 2O 〇● 0 ′､U ′lU Sendai,MIYAGI Okura.and Aoshita River sf. 27Aug _ ハU Akita,AKITA AsahiRiver Bf. 7Aug O ● √､U Mito,IBARAGI Naka River sf.and rb. 6Aug O 一

OJ Urawa,SAITAMA ｢Ⅳell 21Aug 0 ● 0 0 ● 0 2

ウリ Odawara,KANAGAWA Sakawa River rb. 4Sep 0 ● 0 6 0 ● 6 ウリ ハリ Kanazawa,ISHIKAWA SaiRiver sf.and rb. 8Aug 0 ● 8 0 ● 6

Silimizu,S昆IZロOEA Okitsu River rb. 21Aug 0 ● 1 ■4一90 ● 1 2 √lU N昭Oya,AICHI Kino River sf. 6Ang 0 ● 5 ● 3 7

Eyoto,ⅩYOTO Biwa Lake sf. llSep 1 ■ 5543214149 0 ● 0630101572

● Eobe,HYOGO ChikariRiver sf. 20Aus 0 ● 0 ■0 Wakayama,WAKAYAMA Kino River sf.and rb. 8Aug 0 ● 一

Tottori,TOTTORI Bitanistoring Reservoir Sf. 9Aug 0 ● 0 ■

Okayama,OKAYAMA AsahiRiver rb. 5Sep 0 ■ 0 ●

Hiroshima,HIROSHIMA Ota River sf.and rb. 19Aug O ● 5 2 0 ● O 9 ウリ Eoebi,EOCHI XagamiRiver rb. 6Aug 1 ● 1 0 ● O 5 L∂ ● Fukuoka,FUEUOE.A MuromiRiver rb. 30AⅦg 0 ● 4 0 1 0 (U Nagasaki,NAGASAKI Storing Reservoir sf. 6Aug 0 ● 3 7 ■ 2 4 (Uウ] ウリ Kagoshima,KAGOSHIMA Nanakubo Spl･ing 6Aug 0 一 O ● 0

ハU Yoshida-mura,FUKUI Stream sf. 5Aug 2 0 0 ● 21

October,November1963

C∂ ハU Sapporo,HoKKAIDO Toyollira River sf. 100ct 0 ● り一2 ● 1 1

Aomori,AOMORI YokouchiRiver sf. 15Nov 0 ● 2 O ● 2 0

Sendai,MIYAGI Okura and Aoshita River sf. 280c七 0 ● 4 6 O ● 1 7

Akita,AKITA AsahiRiver sf. 100ct 0 ■ 6 ウ一5 O 一 3 1

Mito,IBARAGI Naka RiveI･Sf.and rb. 30et 0 ● 3 O ● 2 1

Urawa,SAITAMA Well 140ct 0.01 0.06 Odawara,KANAGAWA Sakawa River rb. Nov 0.03 0.22 Kanazawa,ISHIKAWA SaiRiver sf.and rb. 150ct 0.65 0.14 Shimizu,SHIZ口OEA Okitsu River rb. 180ct 0.03 0.03 Nagoya,AICEI Kino River sf. 120et 0.31 U.16

Kyoto,KYOTO Biwa工掲ke sf. 4Nov 1.32 0.23 Eobe,HYOGO Chikal･iRive‡･Sf. 150cヒ 0.4i O.09 Table8･90Sr Source and13TCsin Water -May63to Mar

師Sr 13TCs Date /く一′∠C/～/′一′∠C/£

December1963,January1964

Sapporo,HOKKAIDO Toyohira River 4I)ec sf. 0 2 8 0 ● 1 0 7 Aomori,AOMORI YokouchiRiver sf. 16Jan 0 4 7 0 2 8 7 Sendai,MIYAGI Okura Aoshita River ∩リ and sf.16Dec 0 4 0 ● 2 0 7

Akita,AKITA C-リ AsahiRiver sf. 10Dec 0 4 8 0 8 6 Mito,IBARAGI Naka River sf.and rb. 12Dec 0 1 4 0 ● 0 9 7

Urawa,SAITAMA Wel1 7Dec 0 ● 0 1 0 0 2 7 Odawara,KANAGAWA Sakawa River rb. Jan 0 ● 0 5 0 0 6 Kanazawa,ISHIKAWA SaiRiver 10Dec ビリ sf.and rb. 0 ■ 4 0 0 6 7 Shimizu,SHIZUOKA Okitsu River rb. 17Dec 0 ■ 0 6 0 0 6 7 ● Nagoya,AICHI Kino River ウ】 sf. 7Dec 0 ● 2 0 0 7 6 ■

Eyoto,ⅩYOTO Biwa Lake sf. 8Jan 1 ● 0 5 0 ● 1 3 6 Eobe,HYOGO ChikariRiver ウU 18Dec ● sf. 0 5 0 ● 08 6 Wakayama,WAKAYAMA Kino River sf.and rb. 23Dec 0 ● 1 8 0 ● 0 3 Tottori,TOTTORI BitaniStoring Reservoir sf. 7Dec 0 ● 5 0 0 ● 2 0 6 ● Okayama,OKAYAMA AsahiRiver ウリ rb. 13Jan 0 ● 5 0 ● 0 4 7 ●

Hiroshima,HIROSHIMA Ota River 11Dec sf.and rb. 0 4 1 0 ● 1 3 7 Eoehi,ⅩOCEI KagamiRiver 5Dec 0 ● 1 6 rb. 0 ● 0 2 7

Fukuoka,FUEUOEA MuromiRiver ウリ rb. 11Dec 0 ● 4 8 0 ● 1 6 Nagasaki,NAGASAKI Storing Reservoir 7Dec sf. 0 ● 4 3 0 ● 2 9 6 Kagoshima,EAGOSHIMA Nanakubo Spring 5Dec 0 ● 0 1 0 ■ 0 4 6

Yoshida-mura,FUKUI Stream 5Dec ● sf. 0 1 5 0 ● 1 0 7

Feb川ary,Mare血1964

Sapporo,HOKKAIDO Toyohira River C■U ● sf. 3Feb 0 9 0 ● 1 4 7 Aomori,AOMORI YokouchiRiver sf. 6Mar 0 ● 5 9 0 ● 5 4 7 Sendai,MIYAGI Okura Aoshita Rivers 4Feb and sf. 0 ● 4 4 0 ● 1 6 6 Akita,AKITA AsahiRiver 1∂ sf. 18Feb 0 ● 6 8 0 ● 4 6 Mito,IBARAGI Naka River 17Feb sf.and rb. 0 ● 1 5 0 ● 18

Urawa,SAITAMA Wel1 1▲ 3Feb 0 ● 0 0 ● 0 3 7 Kanazawa,ISHIKAWA SaiRiver sf.and rb. 13Feb 0 ● 7 5 0 ● 3 2 7 Shimizu,SHIZUOKA Okitsu River qd rb. 12Feb 0 ● 0 0 ● 0 4 7 Nagoya,AICHI Kino River sf. 7Feb 0 ● 2 7 0 2 0 6 Eobe,HYOGO ChikariRiver sf. 10Feb 0 3 5 0 ● 1 0 6

Wakayama,WAKAYAMA Eino River 00 sf.and rb. 26Feb 0 1 0 ● 1 9 7 ● Tottori,TOTTORI Bitanistoring Reservoir 4Feb 0 sf. 9 2 0 ● 7 6 6 ● Hiroshima,HIROSモ‡IMA Ota River ウJ り】 sf.and rb. 3Feb 0 4 0 1 7 ● Strontium-90and Cesium-137in Stream Water

(九pα他Aれα如宜cα～C九¢刑宜β£γy屈ββeαγ¢鬼才れβま乞£祝fβ)

SinceMay1963,theJapanAnalyticalChemistry carriersolutioncontainingbol ResearchInstitute,On COmmission by the Science and cesium,Were Sentin ad andTechnologyAgency,hasanalyzedthestrontium- AnalyticalChemistry Resea

90and cesium-137contentin water whichis used Prefecturalpublic healthla- for drinking purposes by people near the stream. used wasillustratedin Fig The sampling and pre-treatment for concentration this publication.At each p】 has been made by prefecturalpublichealthlabora- 1aboratory,alOOliter of wa tories. throughthe column at the Samplings were carried out twice a year,OnCe hour,then the column was in a season without snow,and the otherin snow AnalyticalChemistry Resear SeaSOn.The former samples were collectedinJuly At theJapan Analytica and October at7 prefectures,-Hokkaido,Akita, Institute,after 21iters of Shizuoka,Wakayama,Tottori,HiroshimaandKochi, PaSSed through the column t and thelatter collected twicein the snow season by complexionization,StrO二 at6prefec七ures,Hokkaido,Niigata,Fukui,Kyoto, sorbed on the resin were Hyogo and Tottori.Ineachprefecture,2sampling 3N-hydrochloricacid.Thehy

Stations were selected. WaS analyzed using the me To concentrate the strontium-90 and cesium- the Science and Technology 137,theion exchange method has been used.An Results obtained during "A"typecolumn,fi11edwithsodiumcationexchange to March1964are shownin resin(Dowex50W x8,50-80mesh),andlOOmlof

Table9.9OSr Stream Snow and13TCsin Potable Water and L By T.Asari,M.Chiba and Aq.Kuroda (Jαp"もノhもα如宜βαヱC九8竹1宜βわ■y劫βeαγβ九九

Natqre Location(Stream) Date 90SrFeFLC/l137CsFLFLC/l

STREAM,SNOWLESS SDASON(Jul,Nov63) Ural(aWa.EOEKAID Table9.馴Sr Potable Stream Water SnりW and13TCsin and -JulG3

Location(Stream) Date 9nSr[!/!C/l137Cs/!!EC/l p甘 ~ ~ ■~~~~ 一一一 - --- -･一一一711-■■T･_■__ STl柑AM,SNOWLl∃SSSDASON(JuI.,Nov.63)(伽≠症椚㈹

Kozagawa,WAKAYAMA Ju163 qリ 爪り 0 ● 2 0 _ 6

(Eoza River Nov63 ∩リ 〓リ b.s.) ● 1 6 0 ■ O

Eudoyama,WAEAYAMA Ju163 (U ● 2 7 0 ● l 0 6 ● 8 (Kino River b.s.) Nov63 nり O ● 2 4 0 ● 4 7 ● 2

Cbizu,TOTTORI ウリ ∩‖ 相加相加相加抽伽 6 0 ● 2 ● 0 1 3 7 ● 5 ウリ 6 ∩リ 0 ● 1 4 0 ● 0 5 7 Togo,TOTTORI ウリ (り 6 0 ● 2 2 ∩ 0 ● 7 7 ● 6 C■リ 0 ● 0 6 0 ● 0 9 6 9

Onomi,KOCHI 6 q-り ハリ ○リ 2 ■ 9 0 ● 2 6 2

qリ ハり 6 0 ● 1 O 0 ● 8 6 2

Eitagawa,KOCHI nり 亡リ 0 ● 1 2 0 ● 7･4 7 ●

0 ■ 2 5 0 ● 6 6 ● 0-1

Miyoshi,HIROSHIMA 亡-d∩) 0 ● 0 ハり･09 7 ● (UmaaraiRiver) 0 ● 2 5 0 ■ 9 7 ● 1 甘口ebu,HIROSHIMA Ju163 0 ● 4 1 ● 0 13 7 ● 0 (AsahiRiver) Nov63 _ 0 2 5 0 ● 1 4 7 ● 0

STREAM,SNOWSEASON(Jan,Mar64)

Fukui,FロEロⅠ Jan 64 0.07 0.12 7.2 Mar64 0.08 0.75 7.4 Ono,FUXUI Jan 64 0.04 0.05 7.4 Mar64 0.04 0.10 7.4 Maizuru,EYOTO Feb 64 0.10 0.14 6.8 (TaniRiver) Mar64 0.12 0.10 7.3 Mineyama,KYOTO Feb 64 1 ● 6 8 0.86 7.0 Ha】丁64 0 ● 1 8 1.11 6.7 Toyooka,HYOGO (Maruyam孔River) Mar64 0 ● 5 0 0.05 7 ● l Easai,HYOGO Mar64 0 ● 6 2 1 ■ 1 9 7 ■ 1 Mar64 qO 0 ● 5 9 ● 0 1 7 ● 0 Chizu,TOTTORI Jan 64 0 ● 1 1 0 ● 0 5 6 ● 7

Mar64 0 ■ 2 3 0 ● 2 6 6 ■ 6 Togo,TOTTORI Jan 64 0 ● 1 1 0 ● 0 5 // Mar64 0 ● 0 9 0 ● 2 6

SNOW(Jan,Feb64) Dietary Data

Strontium-90and Cesium-137in TotalI)iet

Analysisof strontium-90and cesium-137con- tranSferedtotheNationalh tentin totaldiet samples have been carriedoutat Sciences and theJapan Anal二 theNationalInstituteofNutritionandtheInstitute searchInstitute.The sampl･ of Public Health.In April1963,this work was prefecturalpublic healthlabo

PartI(肋わ0彿α～∫彿β£言古≠fβげ月αdわ吉相宜eαZぶe宜β耽¢ββ)

The NationalInstitute of RadiologicalSciences gories isin charge of analyses of the totaldiet samples l)StapleFood:rice,barley, from 5 prefectures Hokkaido,Niigata,Tokyo, 2)Vegetable Food:rOOtVe Osal(a,and Fukuoka. bles,bean,fruit,etC.

One city and one vi11agein each prefecture, 3)AnimalFood(AnimalPr indicated with open circlesin Figure 3,Were fish,milk,eggS,etC. chosenasrepresentativeofurbanandruraldistricts 4)Soup:SOup,tea,drinl(ir Composite fromt ofthoseprefecturesrespectively･Tenfamiliesfrom samples eachlocation were chosen at random,and each talandfactorieswere ashedt( famillysubmittedanormalportionofthe regular of strontium-90 contentin; ft diet consumedin one day for an adult or a child･ was carried out using the 二 Diet at specialoccasions was avoided.AtOsaka method.For cesium-137,a Prefectureindicated with semisolidcircleinFigure 50mgofcesiumcarrierwastr

3,however,in additiontotheurban adultsamples molybdate then with chloropl fromlO families,＼10dietarysamplesprovidedinlO Results obtained during TablelO. hospitalsand factories werecollected･ The totaldiet was rough1y groupedin4cate-

TablelO.- 90Srand 137Csin TotalDiet -1963一 Bynq.Saiki,T.Ueda,Y.SuzukiandZ･朋 (Ⅳα拭0≠αZ血8ま加fβげJねdゐわg宜¢αZ蝕宜

DailyIntake

Camg Kmg 90Sr FLFLC 137Cs

URBAN LDULT DIET -Jun～Aug63-) TablelO.飢Srandl:17Csin TotalI)iet -1963-

DailyIntake

Emg 駒Sr〃把 1:i7Cs〃/∠C

(URBANAI)ULTI)IET -Jun～Aug63一)( (Niigata,NIIGATA) Staple Food 51.2 268.3 2 ● O 9.5 Vegetable Food 119.0 1170.0 1 1 qO 40.0 AnimalFood 119.0 788.5 1 ● 1 59.0 Soup 164.0 318.4 1 ● 4 14.3 Total 453.2 2545.2 1 5 ● 7 122.7 (Osaka,OSAKA) Staple Food 30.0 ■ 309.8 1 3 1 2 ● 4 Vegetable Food 43.3 1213.3 2 ● 3 2 7 3 AnimalFood 132.0 603.9 1 ● 2 2 7 ● 2 Soup 107.8 197.8 1 ● 6 1 9 ● 0 Total 312.8 2324.8 6 ● 4 8 5 ● 8 (Fukuoka,FUKUOEA) Staple Food llO.0 345.6 5 ● 9 1 7 ● 8 Vegetable Food 124.0 qO 1350.5 9 ● 2 0 ● 6 AnimalFood 294.0 522.5 1 ● O 1 0 ● 3 Soup 155.5 198.6 1 ● 5 6 ● 7 Total 643.5 2417.2 ● 1 7 7 5 5 一 5

(Providedin Hospitaland Factory) (Osaka,OSAEA) Staple Food 31.5 293.5 1 ● 5 2 155971 ● 4

Vegetable C∂ Food 61.5 1018.1 ● 9 6 2 ● AnimalFood 173.0 477.5 1 ● 4 1 ● 1

Soup 88.9 ● 223.4 1 2 ● 7 Total 354.9 2012.5 1 3 ● 7 ■ 6

(RURAL ADUIA DIET -Jun～Aug63-) (Sapporo,HOKKAIDO) Staple Food 59.7 53.3 0 ● 2 4 ■ 2 Vegetable f'00d 34.9 1093.6 2 - 3 17 ● 9 AnimalFood 207.0 333.9 1 ● 8 4 ● 1 Soup 166.0 533.5 1 ● 4 1 1 ● 1 Total 467.6 qd 2014.3 5 ● 7 7 ● 2 (Tokyo)

Staple Food 一4 15.0 293.2 O ■ 8 5 ● Vegetable Food 24.3 248.6 1 ■ 9 8 ● 0 AnimalFood 51.6 674.0 ● 0 8 3 5 ● 2 Soup Total Tal)1elO.ひ′Sr TotalDiet andl巧7Csin -1963

DailyIntake

Ca mg X∴mg れISrJ∠`L把 1てTCs′と/∠C

CHILD DIAT (RURAL pJun～Aug63-) (Sapporo,HOEEAIDO)

Staple Food 29.2 160.0 O ● 9 1 1 ● 1 Vegetable Food 13.O 363.5 1 ● 0 9 3

AnimalFood 148.O 433.0 2 ● 0 8 ● 0

Soup 145.り 348.4 1 ● 2 1 2 ● 1 Tota1 335.0 1304.5 5 ● 1 4 0 _ 4

(Tokyo)

qd

Staple Food 4.8 58.4 O 2 ● 8

ウリ Vegetable Food ● 24.2 279.2 1 ■ 9 6

AnimalFood 49.O 149.1 〇● 5 6 ● 6 Soロp 八U lll.O 96.5 ● 4 3 ● 1

Tota1 189.0 583.2 2 ● 5 2 2 一 0

(Niigata,NIIGATA) Staple Food lO.4 133.9 0 ● 4 6 ● 8

りU

Vegetable Food 168.O 1387.5 9 ● 0 4 ● 8 AnimalFood qO 258.O 273.8 1 ● 6 5 ● 2

Soup 80.O 240.7 1 ● 2 5 ● 1

Tota1 2037.9 516.4 1 2 ■ 2 8 1 ● 9

(Fukuoka,甘口EUOEA)

Staple Food 85.7 22S.0 2 ● 7 5 ● 0

Vegetable Food 85.4 764.U 4 ● 4 8 ● 4

AnimalFood 3G3.O 492.0 4 ● 5 9 ● 4

Soup 98.4 104.3 1 ● 1 2 ● 2

● Tota1 633.0 1588.3 1 2 7 2 5 ● 0

AI)ULTS VIET (URBAN -Nov～I)ec6㌻-) (Sappol･0,HOXXAIDO) Staple Food 52.1 369.7 1 ● 8 42.8

Vegetable Food 85.1 】062.8 6 ● 0 31.7

AnimalFood 132.O 792.5 3 ● 0 27.2

Soup 138.1 595.7 2 ● 5 13.8

Tota1 407.3 2820.7 1 3 ● 3 115.5

(Tokyo) ハU

Sねple Food 48.1 317.2 1 1545451 ● 8

Vegetable Food 67.1 1329.9 5 9 ● 4 ハU AniI℃alFood 85.5 151.9 4 ● 8

ハU ハU Soup l:25.5 218.5 9 ●

OO Totご止 326.2 2017.5 2 7 _ O TablelO.師Sr TotalDiet andl`i7Csin 一-1963

DailyIntake

Ca mg Emg りりSr仰妃 1弓TCs/∠/!C

(RURAL ADULTI)IET -Nov～Dec63-) (Sapporo,HOEEAIDO) Staple Food 48.5 396.2 2 ■ 8 54.8 Vegetable Food 88.4 883.2 5 ■ 6 28.4 AnimalFood 152.O 521.7 2 ● 5 5.5 Soup 156.7 730.0 ウリ ● 6 14.6 Tota1 445.3 2531.1 1 4 ● 5 103.3 (Tol(yO) S七apIe Food 36.6 304.3 l ■ 3 1 7 ● 9 Vegetable Food 39.9 387.0 l ● 1 9 ● 3 AnimalFood 67.7 491.4 1 ● 1 1 5 ● 1 Soup 121.3 ウU 682.7 2 一 2 0 一 6 Toto1 265.5 1865.4 5 ● 7 7 2 ● 9 (Niigata,NIIGATA)

Staple Food 61.0 C●U 456.7 2 ● 7 3 ● 8 Vegetable Food 80.5 1789.9 2 2 ● 1 3 9 ● 2 AnimalFood 131.O 407.1 2 ● 1 5 ● 5 Soup 163.2 890.2 5 ● 9 1 4 ● 3 Tota1 ウ一 435.7 3543.9 3 ■ 8 9 2 ● 8 (Fukuoka,FUKUOKA) Staple Food 46.6 506.0 1 ● 5 1 5 ● 0 Vegetable Food 85.4 1576.6 ウJ 7 ● 2 3 ● 7 AnimalFood 138.5 339.2 0 ● 9 3 ■ 2 Soup 135.1 443.5 1 ● 0 1 4 ● 8 Tota1 405.6 2865.3 1 0 ● 7 5 6 ● 7

(RURAL CHILDREN DIET qNov～Dec63→) (Sapporo,HOEKAIDO) Staple Food 41.6 155.9 0 ● 7 1 4 _ 4 Vegetable Food 90.5 948.8 6 ● 1 4 1 ● 9 AnimalFood lll.O 398.3 1 ● 2 7 ● 2 Soロp l18.8 231.8 1 ● 8 5 ● 6 Tota1 351.9 1734.8 ● 9 8 6 9 _ 1 (Tokyo) Staple flood 29.8 174.9 l ● 6 7 6 Vegetable Food 41.5 332.3 1 ● 5 9 ■ 0

AnimalFood だU lOl.5 1231.6 ● 6 4 4 ● 8 Sonp lOO.1 111.1 0 ● 6 2 ● 4 Tota1 272.9 1849.9 日U l ● 1 6 5 ● 8 (Niigata,NIIGATA)

Sねple Food 55.5 203.8 2.6 12.8 1HOKKAIDO 16HYOGO 2AOMOR1 17 WAKAYAMA 3MIYAGI 18 TOTTORl 4 AKITA 19 0KAYAMA 5IBARAGI 20 HIROSHlか1A 6 SAITAMA 21KOCHI 7 TOKYO 22 FUKUOKA 8 K^NAGAWA 23 NAGASAKI 9 NIIGATA 24 KAGOSHEMA lOISHIKAWA llFUKU1 12 SHIZUOKA 13 AICHI 14 KYOTO 15 0SAKA

♂U

0

♂ ♂

0 100 200k ｡♂ l+l ● 監禁㍑s:㌣ニどpanAnalyticalChemistry 00…:;三三……≡bytheInstitureofRadiological

Figure3.Sampling Location -TotalDiet Pa Tablell.9nSr TotalDiet and137Csin -Oct to De. By T.Asari,M.Chiba and M. (J血pα循A耽αZ〝£宜cαgC九β例ぬ

DailyIntake Montb ~~~■■■一 Ashg Camg Kmg -･ ･--90Sr/L/LC137C51 --.. -■■...

(URBAN ADULTI)TET) Aomori,AOMORI

l1211 881 ■ 904 0 427 1351

210U On一263 ● 1〇一682 800989 Sendai,MIYAGI 甑伽藍Oet監両肘甑 ● 8 264 1459 ● Akita,AEITA 0 582 2112 ● Mito,IBARAGI 9.90 346 1385 ● Omiya,SAITAMA 4.76 456 1104 1 ● ,EANAGAWA

21111 ∩り8527 ● 40685 04∩り.46 56452 L∂94くリ6 38ウリ22

21111 l 6682ウU 64177 21111 26420 ● 22712 1 158ウリハけ Eanazawa,ISHIKAWA ● l108 Fukui,FUXUI N O e _ ● Shimada,SHIZUOKA ● ● Anjo,AICHI ● ● Eyoto,ⅨYOTO

11111 47497 ● 72780 50βU75 46ウリ12 89751 85705

11121 1ウリ124 21403 61788 1 3(X∵父U80 ● 13425 8ハひ20｡▼4 Kakogawa,HYOGO ● ≒さ ● Wakayama,WAKAYAMA N O e e 11 ● Tottori,TOTTORI ● 31 ● 1 Okayama,OKAYAMA

■

Ⅱiroshima,HIROSHIMA N O e 1111 6445 ● 2072 7 4355 6734 2591 1111 6238 3550 たU665 110232 ● 6575 Eoehi,EOCHI -ニ■㌫㌦ん 7742 ● 一 Nagasaki,NAGASAKI ● 20 ● Kagoshima,EAGOSHIMA ● 2 ● 1

(RURAL ADULT DIET) Aomori,AOMORI 12.22

112 482854732069935u12202320 ● 63387 亜γ耶¶おⅥ Natori,MIYAGI 21.10 諾433498347諾霊508謂181｡164214｡｡慧詣8254971｡8崇965● Oga,AXITA 伽甑鑑Oet蛋滋野藍26.20 1 ● Tokai,IBARAGI 17.30 ● Menuma,SAITAMA 18.64 1 ● ,KANAGAWA 24.90

11311 ● 62545 別離扁㌫㌫肌 Eanazawa,ISHIKAWA 13.39 Asahi,FUEロI N O Dee 14.50 Shibakawa,SHIZUOKA 16.59 11 ● Anjo,AICHI 16.67 ● Otokuni,KYOTO 14.72

3157471052 11111 ● 11035 鋸4337耶閑 Eakogawa,HYOGO 15.90 ● Iwade,WAKAYAMA 18.16 11 ● 甘口kube,TOTTORI 18.96 ● Tsudaka,OKAYAMA 15.60 ●

Shiwa,ⅡIROSⅡIMA N O 12.35 4682 1597 0254 1121 4302 5503 2755

㌣NNN ● 9388 57410059 Ⅱarqno,ⅩOCHI ′-Dee O Ⅴ 15.10 ● Tokitsu,NAGASAKI O Ⅴ 24.72 ● Turuta,EAGOSHIMA O V 14.90 ●

(RURAL CHILD DIET) Aomori,AOMORI

l 9483ハリ ● 14cO65 05141 12441 19072 ウリO568 1116741 924()U2 l 54215 ■ Natori,MIYAGI 2111 90277 65374 ウ一8ウ一ウU4 l ■ 伽監甑Oet l ● Oga,AKITA ●

l∂74 ● Tokai,IBARAGI l ● 11 ● Menuma,SAITAMA l ● _ theJa Table12is arearrangementofresultsobtained (5prefectures)and from urban and ruraladults since1960,tOShow Institute(19prefectures)･ two timeandlocalvariations.Thesedatawereobtained results of periods,Jur toNovember,arePreSented fromIssueNo.1andNo.3andthisissue･Results and seasonalvariations at upto1962arecontributedbytheInstituteofPublic the dailyintake Health(▲37Cs)andNationalInstituteofNutrition where (90Sr),andresultsduring1963arecontributedby measured since1960. the NationalInstitute of RadiologicalSciences

URBAN^DULT

ノ 円 口 口 ノーノ＼ ＼ ノ≠:/団

■ J_A C･D J_A O･D J_A O･D J.A O･D 60 61 62 63

■ RURALADt JLT ∠▲＼ ＼++十十

√ く､二＼ ′:ク ヽ

l ∩ l__L_ J･A O-D J.A O-D J.A O-D J.A O-D 60 61 62 63

Note__(.-HOKKAIDO,-｢-IS Note-.PHOKKAIDO,一■1----ISHIKAWA J_AJune to August,0･D OI J･AJunc toAugtISt,0･D October to December Figure4-2･DailyI Figure4-1.DailyIntal(e Of9OSr (/とJ～e川 (〃′とe/day･perSOn) Table12.I)ailyIntake of9つSr and13TCs-1960to1963q(rearr

Location 19飢 9■■'笠∠㌢動物i芸S?㌔一一一-iう由 J-A O-DJ-A O-DJ-A O-D J-A O-D J-A 196｡137C∃O-D J-j! 一34 + ▼㌻5り ウリl∂

HOEEAIDO URロRロRロR AA 45 55 64 7【- 8ハリ 99 66 l 42C一り4 21 44 1 l 八りr∂ AOMORI AA 1ウリ 47 21

MIYAGI AA 69 44 82 ー1nU 1100U 1 ウリ

AEITA AA 21′.り91199 44?リ1 ウリ2ウリ2

YAMAGATA URロR AA 1 16 7ウリ 2 18 1 IBARAGI AA 79 79

UR AA SAITAMA 78 1 36 l 6nJ 3138 3216 1 l

TOKYO UR口R AA 7 86

XANAGAWA AA l lハリ 221522331617 l

尺U NIIGATA URロR AA l n∂ ?リq∂

ISHIEAWA AA 65 1121 58 90 1 49 1187 60 2114 44O6 3ウリ 1 l

FロKロI URロRロR口RロRロRロR AA 61 13L∂4 1

SⅡIZロOEA AA 99 112ウ】

AICHI AA 64 71 1 06 1 06 1 MIE AA 00 2217 40リ q】8 1

KYOTO AA 2 08 1 36

OSAXA AA 44 80 6 1 HYOGO AA 009

WAKAYAMA UR AA 43 89

TOTTORI URロRロR AA 1161 1193 22q∂7 33QU5

OXAYAMA AA 45 36 98 1 1βU 2317 8 HIROSⅡIMA AA 11り一2 1113

EHIME URロR AA 49 68 CO5 5だU 1159 2128 240り]

EOCHI AA l 5ハU 1230 l Strontium-90and Cesium-137in Vegetables

ResearchInstitute,has be The analysis of strontium-90andcesium-137 The data contentin vegetable sent from the prefectura11atterinstitute■ PartI･Inaddition,theIbar; publichealthlaboratories,Whichhadbeenpreviously carriedoutbothattheNationalInstituteofRadio- OfHealth,hasalsoanalyzed logicalSciencesandtheJapanAnalyticalChemistry tentinvegetablesasshown

PartI(九pα≠A†乙αZ〃fわαZC九β例言βわ一y忍βββαγCたJ≠8f加まβ)

TheJapanAnalyticalChemistryResearchInsti- were removed from the f the parts tute,On COmmission by theScienceandTechnology and only edible Agency,hasanalyzedthestrontium-90andcesium- Thesesampleswerethensen ChemistryResearchInstitut 137contentin vegetables obtained from12prefec- tures.Each prefecture has2sarnPlingstations,aS tium-90and cesium-137co shownin Figure5.Samples were taken twice at recommendedbytheScience Results the samestationduringtheharvestperiod.Atthe obtainedduring to March1964are prefecturalpublic healthlaboratories,inedibleparts showni

saアサ 二｢‡㍉

トSこInこIgミ○ Table13.9(}Sr Vegetables and13TCsin -Oct63 By T.Asari,M.Chiba and M. (Jαpα花AヶもαZ〃f宜cα£Cゐg竹も宜β (Continuedfrom Tablell,IssueNo.20f"RadioactivitySurveyDatainJapan=)

Month Componentヲら Loeation Harvested Ash Ca ′∠/∠C/kg

LEAF VEGETABLES (Spinacb)

Oc仁 .4ra Fujieda,SHIZUOEA 63 1.37 0.086 ● 0 4582402945647376100813810040346643

Yoshiwara,SHIZUOKA // (U 0U だU 1.31 0.106 ● Tokai,IBARAGI Nov 63 1.46 ▲∩> 0.073 ● 5 7

Mito,IBARAGI // ウリ 1.13 0.065 0 ● 2

// ウ一 Niiza,SAITAMA 1.75 0.106 0 ● 5

// Sugito,SAITAMA 1.44 0.096 0 ● 3 8 Odawara,KANAGAWA Jan 64 1.40 0.134 0 ● 2 2

Atsugi,EANAGAWA // 1.4t) 0.153 0 2 5

c∂ Fujieda,SHIZUOKA Feb 64 1.30 0.107 0 ● 7

Yoshiwara,SHIZUOKA // 2.31 0.158 0 ● 6 7 Sanage,AICHI 1.24 0.048 0 ● 4 2 〝〝Mar〝〃〝

Akabane,AICHI 1.43 0.048 0 ● 4 8 Mito,IBARAGI 1.34 0.081 0 ● 3 1 1.31 0.081 0 ● 4 4 Atsugi,KANAGAWA 1.34 0.081 0 ● 4 4 Odawara,KANAGAWA 1.38 0.057 0 ● 4 〇

(Potherb mustal･d)

Shime,FUKUOKA Feb〝〝Mar〝 64 0 ● 8074830087 0.081 0 ● 2221292822 120176788147

0 ● 0.032 0 ■

Yame,FUKUOEA ● 0 0.061 0 ●

64 1 ● 0.083 0 ■

Sbime,FけKUOEA ● 0 0.106 0 ●

LEAF TEGETABLES (Tsuke-na greenS for salting)

Niiza,SAITAMA Nov 63 0.92 0.122 0 ● 2 0 4934

// Sugito,SAITAMA 0.77 0.103 0 ● 2 6 (Japanese Radish Leaf)

Nov 63 ● Sugito,SAITAMA 1.29 0.113 0 2 8 95159489124459464

// Odawara,EANAGAWA 1.30 0.245 0 ● 1 9

Miura,KANAGAWA // 1.36 0.354 0 ■ 1 6 ハU Niiza,SAITAMA Dec 63 1.41 0.201 ● 1 8 Ei,KAGOSHIMA Jan 64 1.79 0.248 O ● 3 0

Kokubu,EAGOSHIMA // 1.16 0.184 O ● 1 4

HEAD VEGETABLES (Cabbage) Obihiro,HOXKAIDO Oct 63 0.57 0.049 0.17 13 Table13.リt,Sr Vegetables Mar64 and13TCsin -Oct63to

Month Component% 加Sr Loeation Harvested Asb Ca /∠/∠C/kg ′∠一〃C

(Chinese Cabbage)

⊥し ウリ qO Furukawa,MIYAGI O C 63 0 65 0.047 0 ● 2 l 7

Shiroishi,MIYAGI √-リ り 〃 0 61 0.038 0 ● 2 2 1 Mito,IBARAGI 〃U リり 〃 1 03 0.137 0 ● 6 8

Tokai,IBARAGI 〝 ハU 64 0.047 0 2 1 ウ】4 5

nU ハU 1∂ {ソ一 Sapporo,HOEKAIDO N 岬 63 54 0.021 ● 1 2 6 l

､ソ】 Mito,IBARAGI 〃 O 77 0.082 O ● 2 1 9 9 l

Tokai,IBARAGI ?0 (ソl 〃 O 73 0.045 O ● 2 3一b 1

ハU ウリ Furukawa,MIYAGI D e e 63 57 0.035 O ● 1 14

Shiroishi,MIYAGI 〃 O 53 0.038 O 1 7J 1 9

Odawara,KANAGAWA 〃 O 51 0.041 O ● 1 6 1 9

nO

Yokohama,KANAGAWA O 43 0.035 O ■ 1 6 l

qリ Sanage,AICHI O 56 0.033 O ● 2 1 1 Cd バU Al(abane,AICHI 1 44 0.129 O ● 9 6 Shime,FUKUOKA 0 55 0.035 O ● 1 3 1 5 /l一O ウリ ウリ Yame,FUKUOKA 0 62 0.033 O ● 2 6 l

ウリ Yokohama,KANAGAWA l a n 6 4 0 43 0.034 O ● 1 5 l

ウU

Odawara,KANAGAWA 〃 0 53 0.029 O ● 1 4 1 0

りム 〃 ハU ウ一八U ShiIne,FUKUOEA 0 51 0.025 ● 1 3 3 l

■ゝIV J Yame,FUXUOEA 〃 0 61 0.034 O ● 1 5 l

ROOT VEGETEBLE (Japanese Radish Root) l UO ウU Sciro,NIIGATA Oet 63 0.50 0.021 0 ● 2929323117 1 ウーウリ Nagaoka,NIIGATA // 0.47 0.023 0 ● 1 6 1 (U Yosbiwara,SHIZ口OEA // 0.52 0.024 0 ● 2 1

Sapporo,HOKKAIDO Nov 63 U.42 0.017 0 ● 1 O 1 7

Akita,AKITA 〃 0.42 0.015 0 ● 0 9 1 0

ハU 1∂ ハリ

Tenno,AKITA 〃 U.43 0.028 一 1 5813201238 2

ハリ 史U Sugito,SAITAMA 〃 U.55 0.025 ● 1 5 ハU ハU Miura,KANAGAWA 〃 0.46 0.020 ● 1 l 1

〃 ハU 八U OU Odawara,KANAGAWA 0.39 0.031 ● 1

ウ】 Fujieda,SHIZUOEA 〃 U.65 0.025 O ● 4 1 5

ハU ハU

Fukuyama,HIROSHIMA 0.44 0.020 O ● l 2013u6689 1 〝〝DeeJan〝

(U ウ] C■U Kabe,HIROSHIMA 0.66 U.0こ;3 ● 7

Niiza,SAITAMA 6364 0.51 0.040 O ● 1 4 2

Ei,EAGOSHIMA 0.60 0.033 O ● 2 2 1 9 1.∂ ウ】eU Kokubu,KAGOSHIMA 0.47 0.031 O - 1

ハU ウ】 Fujieda,SHIZUOKA 64 0.67 0.044 ● O 4046 9 r∂ Yoshiwara,SHIZUOKA 0.54 U.046 O ● l l 0 PartII(撤肌扇動画廊肌山砲臨地用=勤皿)

Since1961,theIbaragiPrefecturalInstitute

Of Health･One Of the prefecturalpublic health laboratories,On by COmmission the Science and SeaofJapan TechnologyAgency,hasanalyzedstrontium-90and

CeSium-137contentinvegetables. Inthissampling,the ニr≠一(. vegetableswerewashed andinediblepartswereremoved.Theanalysisof 芦ノか StrOntium-90wascarriedoutusingthemethodre-

COmmendedbytheScienceandTechnologyAgency. ResultsobtainedduringtheperiodMarch1960 to May1962are shownin Table14.

Figure6.Sampling

-Oet60

Table14.9(JSrin Vegetable -Oct60toJa By R.Eoike,Y.Nakazawa and] (乃αγ喝宜アγ姉¢ねγαg九βほ%f

Component L O e a ‥tlO n Ash(界) Ca(界) (S

61616262626262 0.075

監Jan鑑‰蝕〝〝甑監〝鑑 ㍑ばば1･582･｡71･45ば指0･640･71U.125 面Mit｡〝慧〝蒜〝蚤S｡Wa0.125 0.061 0.090 0.062 0.092 0.079 0.056 636364 0.073 0.065 0.081 0.081 口 6061 0.028 0.089 Strontium-90aIld Cesium-137in Nilk

(九pα彿A彿α加わαZC九β刑ゐ如月βββαγ¢九∫朋£加f¢)

SinceDecember1961,milksamplesfromvarious bythe24publichealthlabor were then sent t･ partofJapanhavebeencollectedby24prefectural samples forstron- Chemistry ResearchInsti publichealthlaboratories and analyzed the tium-90 and cesium-137 content at theJapan analyzed using methoI Ag AnalyticalChemistryResearchInstitute･ Science and Technology Results durin≦ Threeliters of fresh milk was purchased at a obtained March1964are representalfarmineachprefectureIandcarbonized showninつ:

Table15.9USrand13TCsinMilk -Jan64toMar ByT.Asari,A(･ChibaandM･Kurc (九pα雅力もα～y£元αヱC九β刑ぬfγy月

(ContinuationofTable9,Issue3,=RadioactiveSurveyDatainJapan")

Component g/l Loeation Date Asb Ca E /r′_〃招

● 70030

● 1.37 1310171736312360096248860821

77677 ■ 171486390019220808633794440050672233675056 10001 179696970425009788280602鋸04020403鴨930717 Sapporo,HOXKAIDO 16Jan 6464646464

● ■ 1.43 Aomori,AOMORI 27Jan ●

● ● 1.16 7 班 a γ一 ■

● - 1.12 Tsukidate,MIYAGI 3Feb ●

● ● 1.22 Akita,AKITA 13Jan ●

●

l ● 07 60223

● 11001 ●

2Mar 64 87778

● ● l ● 2 0 Katsuta,IBARAGI 11Feb 64 ●

● l ● 0 2 Kawamoto,SAITAMA 17Jan 64 ● ●

1 ● ● l ● 2 3 5Mar64 ■

● l ● 2 8 2 Izu-0血ima,TOKYO 27Jan 64 ● ●

● 1 ● 32264 11011 ● l 2752825148 3Mar 6 4･4■ 76576 ●

1 ● ● 1 ● Atsugi,ⅩANAGAWA 9Mar 6 ■

J4 ● 3 ● ● 0 Koshiji,NIIGATA 61Feb 6 ●

● 1 ● 1 Kanazawa,ISHIKAWA 12Feb 6 4 ● ●

1 ● ● 1 ● Nonoichi,ISIIIKAWA 28 M a r 6 4 -

1 ● 09695 11101 ● 1 ● 4029700785 Fukd,FロEUI 16Jan 64 67757 ●

● 1 ● 1 2Mar 64 ● ●

2 ● ● 0 ● Gotenba,SHIZUOKA 17Jan 64 ●

● ● ■ 1 Sanage,AICHI 13Feb 64 ●

1 ● ● 1 ● Nose,OSAXA 31Mar 64 ●

● 4 1 ● 53 1 Akashi.HYOGO 26Feb 64 7 ● 1 ● Strontium-90and Cesium-137in Powdered Milk

(九pα彿Aヶ乙α～〃ま宜cα～C九β例言さまγyRβββαγ¢九∫朋£乞わ`fβ)

Since1960,theJapan AnalyticalChemistry inTokyo.Theanalysiso

ResearchInstitute,On COmmission by the Science 137content was carried andTechnologyAgency,hasanalyzedstrontium-90 COmmended by theScienl and cesium-137contentin powdered milk. Results obtained are Thesampleswerepurchasedontheopenmarket

Table16.90Sr and13TCsin Powdered Milk By T.Asari,M.Chiba and M.K (九pα彿A≠αgy掠αZC九β刑ゐ舌γy

Component Strontiu Location Produced Date Ash罪 Ca界 Ⅹ界 ′叩/kg ′` (A(odified Milk Powder)

Obihiro,HOKXAIDO Apr63 4.49 0.621 0.752 109

Eenebetsu,HOEEAIDO Sep 63 4.30 0.476 0.698 203

0bihiro,HOKKAIDO Oct 63 4.22 0.585 0.728 276

YAMANASHI Nov63 3.42 0.410 `0.648 4 7

NAGANO Jan 64 3.33 0.482 0.656 9 2

(Whole Milk Powder)

Eenebets叫ⅡOEXAIDO May63 6.42 0.955 1.284

// // Sep 63 7.26 0.926 1.195 Human Data

Strontium-90inⅡumtn Deciduous Teeth

(抽出0彿αZ∫九β舌宜£髄fβげ月セαZ紘)

The NationalInstitute of Health has analyzed or50tolOO molarsin the strontium-90contentinhumandeciduousteeth, The content ofstron been to establish relationship between strontium-90 teeth has analyze( contentininfant hard tissue and the form of mended by the Science feeding.Since the beginning of thisinvestigation Results of teeth f in December1961,about18,000human deciduous Kanto District are sho1

7shows the var teeth from various areasinJapanhave been col- yearly lected. feeding.

The teeth from children were classifiedinto Since1954,StrOntil groups according to the year of birth,type Of teeth showed a rlSlng` te teeth,and form of feeding,namely breast,bottle contentin deciduous or mixed,and also to thelocationwheretheywere WaS apParentlyhigher rai$ed.One sample consists oflOO to200incisors childrenin1955and19

至 Breast Fed 妻 BottIeFed

Mixed Fed T†

■ Table16.9qSrin Human Deciduou8Teeth By T.Nagai,S.Okada,T. (Ⅳαまゐ彿α～九さ舌宜ね≠8げ

Year of Birth Infant feeding Teeth type Number of te

50 C 5 0

// D 3 0 51 Breast C 1 0 0 // Breast E 5 0 52 Breast C 1 2 0

// Breast C 1 0 0 // Breast D 7 0 53 Breast C 1 2 0 // Breast C 1 0 0

// Mixed C 1 0 0 54 Breast A B 1 2 0

// Mixed A B 1 10

// Brea眉t C 1 0 0 55 Breast A B 1 7 0

// Brea眉t A B 2 0 0 // Breast A B 1 5 0

// Bottle A B 1 2 0 // Mixed A B 1 5 0 56 Breast A B 1 5 ∧V

// Breast A B 1 5 O // Breast A B 1 0 O

// Breast A B 1 ウリ-hリ 5

// Bottle A B 1 0-b

// Bottle A B 1 n∂

// Mixed A B 1 5 O

Note;A-Eindicate CentralIncisors(A),LateralIncisor8(B),Cuspids(C),First (E),reSpeCtively. Contributor

Theanalyticalresultsquotcdin thisissuewerecontributedby th

Institutc and Address

IbaragiPrefecturalInstituteofHealth

l19,Kita-San･nO･maru,Mito･Shi Japan AnalyticalChemistry ResearchInstitute

17,Kikukawa･Cho,2-Chome,Sumida-ku,Tokyo Soil,( S亡reat Diet,l Pow(加

NationalInstitute of HealLh 284,Kamiosaki-Chojamart,-ku,Tokyo

NationalInstitute of RadiologicalSciences 250,Kurosuna･Cho,Chiba･Shi