ISSN O4-
NIRS.RS
RADIOACTIV
SURVEY DA
Part2
=DietaryMaterials=
NUM
Ap
RadioactivitySurveyD
inJapan
Number81
Apri11988part2
Contents
EnvironfrbentaandDietary Materiats
(Japan ChemicaAnaysis Center)
1.LLectionand pretratmt Of saos
2.Prarationof saesfor anaLyss
5Srationof Stontium-90andCesium-157:
i.Determination of StabLe Strontium,Catciunand PotassIUm.
5.unting.
6.ResuLt$...
I Stronti-90and Cesiu157in TotaDiet..
(21StFOntium-90adSiu157in Rice.
(producing disticts)
-2Strontium-90andium-157in Ric.
(con$umidistricts)
1Strontiu90and Cesium-157n Mik.
(prducing districtfor dStc program)
2Strontiu90and Cesjum-157in MiLk
(prucing districts for uHOprra)
-Stronti-90and Cesium-157Mk..
(cSuming district)
Strontiul-90and CSjum-11n MiLk.
(perdk)
)-1Strontium-90and Cesiu157in V9tabos
=trict)
2Strontium-90and Cesiun-157inVe9etabes
Envnntaand Dietaryterias-
apan ChecaAnaysis Cente
1.LLCtionand pretreatnt Ofes
(1)Rn and dry faout
Rain and dry fauout va$ COueCted nonthy ona
SPtray,aPPrOXiteLy5000cm2inarea,chvas
fiued vith vater toadepth oflcmat the be9innin9
0f evrynth.
Strontium and ce$iumcarrierOlutio radded
after the sampevas fiLtered.The tray vasvaihed vh5 0distiued
vater and the vashin9VaSCOmbined to
the fiLtrate.
The sampLe vas passed through acationexchan9e
COmn(500 0fX50UX8,50-100Sh,Ha0)
at a rate fL=f80 /n.
(2)Airborne dust
Airborne dust vas couected by aneLectrostatic
PreCipitator or a fiterair!anPer for every three
nonthsat arateofmore than5000npermonth. The
SamPin9VaS doneltol.5neters above the9rOund.
(5)Service vater and fhvat
ServiceterIlOO each,VaS COueCted at the
intakeof thevater-treatnent Pantand at the tapafter
Vater VaS Left running forive minutes.Strontiumand
CeSiuncarriers vere added to the ftered vater sanpe.
The subsequent processvas the sane as that describedin
the section(1).Freshvater vas treatedin the saVay
a$the srVice vater.
(i)So
Sovas couected fr00ltheocationin the spacio-
US and fatareavithout pa!tiurface disturbance causedby
duststorns,infLovand outovdue toprecWtation,etc Any pacesated
undtreSin a fore$t,a
StOny arOa Orinsiof HvbanksaVOided. SojL
VaS taken frtVO tayerSOf different depths,0-5cmand
5-20cn.The soitumpsverecru$hed by handsand dried
the effect of terrestria
OX(td tobo Rlgibt==ven tov
ing vaCarried out v
theast fevdays.To
SPes veCOoctd
just before$he stod st
u$ing a poythyenebuc
COLLection,tho sa
thanby adding ln
ratio ofl tol of
20 poLyothyO COnta
asL as container$
diLuthydrhoric aci-
Vatbefore use. T
tOr VaLso coLLected
tmination of chorin
)Sea seditS
Sodint VaS COLelfor the sea vater sampe
riainto accnt:
a.Tho depth of
b.No significant
edin the vic1
C.MudlSt and fil
A cVt=t
COectingthe top feuc.
nt.Approxiteyg of
SPread on a steness s
PbISIShoLs and(
ddin adrying ovrl
(7)TotaL diet
AuL onday orl
neasIVaterItea and othl
PerSOnVaS COLectda
TheIinaargetj
ized caryby direcl
=tranSfered toal
at50 in an eCtri
(9)Mk
VmS00tin pring dstictand
CrCiaL miLk $PurChasinOnidistricts.
MiLkin a stainS$teL pan or a porLaindish va
aPOratd to drynoss foLd bycarbonization and
ashing.
(18)VgtabS
Spinach andJapanese radishvere seectedas the
repre!entative!for Leaf ve9etabe$and for non-StarCh
roots,reSPeCtivey.After removin9Oit,theedibLe
Part Of vegtabeaLoS dried and carbonizedna
$tainess stpaROr a POraindh.
(11)Tea
Five hundred9ramS Of manufactured9reen teaVaS
COected,CarbonIahdin a stainess stOL
PanOr a POrCaindish.
(12)FishIShefish
a.Sea fish and
Fhl5nsed
fter pap.Ly t
Ofargeizfi,
CaSe Of sOnS.
Pacodin a stainess
AftarbonedIth
ffLurnac.
b.Shefish
Approxityi
SheLsvas coLLtted
the sheu$Iit vas t
for the sa fih.
C.Sads
EdbSald
Vater tO rVe Sand
the surface. The$e
ighed drid and ash
Tabelshode
Tabel taiOf sPCOection
Sampe Fequency of sai 8
=nvonntaLterias=
(1)Rain and dryaLout
l.For dStic program
2.For UHO prram
(2)Airborne dust
(5)Service vater and freater
l.Service vater(sourceter)
2.Service vater(tap vater)
5.Fresater
(i)So
1.0-5cm
2.5-20cm
(5)Seaater
()Sea seditS
=Detary materias=(7)Totadiet
nthy
nthy
quateLy
Semiyeay
SemiyearLy
yeary(fhing season)
yeary
yeary
yeaFy
yeary
Semjyeay
Sampe Frequency of sampg aua
5.Consuming districts
i.Povderedk
(10)Vegetabes
l.Producing districts
2.Consumhg distrcts
(11)Tea
(12)Fish,Shefish and sedsl.Sea fish
2.Fresater fish
5.Sheish
i.Seaveeds
Semiyeary(February and August)
Seyeary(Apriand October)
yeary(havesthg season)
yeary(harvesthg season)
yeary(the fst harvesthg season)
yeary(fishing seaso)
yeary(fishing season)
yeary(fishiSeaSOn)
yeary(fishing season)
2.Praratimof saSfor anaLysis
(1)Rain,SerVice vater and freshter
Strontiumand cesiumvere eLuted vith hydrochor-
icacid frthecationexchan9eCOLumn.The residue
Of rain sanpe on the fitter paper vas ashedin an
eLectric muffLe furnace and the ash vas dissovedin
hydrochLoric acid.Theinsoube part vas ftered and
VaShed. The ftrate and the vashin9S Vere C001nedto the previous
euate and used for radiochemicaL ana-
Lysis.
(2)Sand Sea sedint
Dried soit vas crushed toerones than O.25
=n size by a crusher.The sieved sanpevas ashedin aneectricmufte
furnace reguLated ati50
.TheSamPevas then heated vith hydrochoric acid,StrOnt-
ium and cesiun carrier soutions and the mixture vas
heated.Thein$0ube constituent va$fittered off and
Va$hth vat.
The dried sanpevas cruihed tosmauer ones than
O.25by acrushing machhe.The further preparation
Of the!anPLe vas the same as that describedin the
SOCtion2(2).
( Rice
(i)Airborne dustIdie
Shefish,Sad
The$e akd$L
Pduro a$that dlSCr
5.Soparationof stro
)Strontium-90
Sae soLutions,
SeCtions2-(1)through
Sum hydrox.Aft
the precipitate of stro
$Paatd.ThSuP
for ciul-157det
dssovdnhydrhLor
tatdVaS dis$0vldiR ntric
atd fCacium by
aration.I0SCaV
friciron carrifo
aration afterddition
adi,itshtersa
ered as carbonat,and
ighod totminSt
ium carbonate vas dis$O
iron carriS add.
dophosphate added.
After fitered off and vaihed vith hydrochLotric
acid the precipitatevasdissovedin2.5N sdiunhydr-
oxide soLution. The soutionvas adjusted to pH8.2th hydrhoricacid
and adtoc00.Resutant
moLybdenumhydroxidevhichseparatedoutin the sotuti-
On,VaS fiLtered off and vashed vith vater. EDTAvas
added tothetrateand vashing$.Ceshmand rubidium
vereadbed on acationXChangCOu and sium
VaS SeParatedfrrubidiumbyeLutin9thhydrochor-
ic acid.
Theeuatevasevaporated todrynessand vasdiss-
0ved.The soutionvas fittered.ChoropLatinicacid
VaSadded toprecipitatece$ium. The precipitate vas
fiteronto a tarld pap8r uSing atabe ft
and vashed vithvater and thenethanot.After drying,
thechenicayied of cesiunvasdeternined byveighin9
tbe precipitate.Cesium-157radioactivityvasneasured
for this pecipitate.
i. tmination of stabL StrOntium,Cacium and
POta$Sm
Avehed aqK)unt Osoior sea sedinent va$heat-
edin a eLectric muffefurnace at450 and then
treated vith hydroch
i9hed a=quot of ash01
abLSIufhIShl
ed vh hydrofLuoric.
The extract $de
VithdiLute hydroch0
S anaLyzdor caLc
POtaSiumporngan
Cacium as oxaLatl.
VaS aPPiedvh=
taSium rO det1
faemisionCtr
5.unting
Aftr the radio
PrOCIPitates vr0
background btaCOunt
tamPe counting
efficiey,COVeyI
Obtain the content of
PeraLe aiquot.F
Of thSnuCidlSin
Cacatd.
6. Results
(l) StrontiuJn-90 and Cesium-137in Total Diet
(from Nov.1986 to Jun.1987)
-COntinuedfrom NO.79 0f this publication-
Table(1):Strontium-90 and Cesium-137in Total Diet
Ash Ca K 90sr
Location
(g/pd)(mg/pd)(mg/pd) (pCi/pd) S.U.
November,1986
Hiratsuka,KANAGAWA 17.7
Nishikawa-maChi.NIIGATA 20.3
Nagasaki,NAGASAEI
Ookuchi,KAGOSHIMA
December,1986
Aomori,AOMORI
Fukushima,FURUSHIMA
Mito,IBARAGI
Shinjuku,TOKYONagano,NAGANO
Kyoto,YOTO
Neyagawa,OSAKA
Yamaguchi,YAMAGUCHI
January,1987
Hiroshima,HIROSHIMA
February,1987
Naha,0INAWA
May,1987
Wakayama,WAXAYAMA
831 2420
593 2270
15.8 440 2230
9.80 391 1450
4
3
9
0
6
9
5
6
2(d
l
l
l
l
l
9
4
2
6
4
5
1
1
1
12.9
13.1
5
5
9
4
3
7
9
4
1
4
4
8
5
4
7
7
1
2
0
4
8
5
5
3
0
0
0
0
0
0
9
4
6
1
9
7
2
6
1
1
1
2
1
2
0
0
0
8
8
2
2
1
1
2
2
2
1460
2010
12.5 439 1380
1.80.32
2.30.37
2.60.34
1.90.39
2.20.39
2.90.40
4.30.43
1.70.40
1.90.35
2.30.33
1.90.49
2.70.60
2.20.38
3.90.62
5.90.78
4.90.99
4.60.82
3.20.44
7.90.78
4.10.96
2.50.47
4.00.57
3.60.91
7 1.6
3.10.49 3.80.59
2.40.53 5 1.2
1.50.24 3.40.55
(6)
Ash Ca E 90sr
Location
(g/pd)(mg/pd)(mg/pd) (pCi/pd) SU
Neyagawa.OSAEA
Xakogawa,HYOGO
Fukube-mura,TOTTORI
Okayama,OEAYAMA
Matsuyama,EHIME
Eochi,OCHI
Dazaifu,FUEUOEA
Saga,SAGA
Nagasaki,NAGASAEI
Ookuchi,EGOSHIMA
Naha,0INAWA
15.3
14.1
13.9
17.2
12.6
4
9
0
4
1
7
52
6
0
1
3
1
1
1
1
1
1
5
7
9
7
2
2
0
0
5
0
4
7
4
4
5
6
2
3
2
9
4
5
0
7
6
6
7
6
4
6
3
2
3
1980 1.50.27 3.60.63
1.980 1.70.28 2.40.40
1650 1.70.26
2020 1.60.31
1850 1.50.24
0
0
0
0
0
0
4
9
6
8
6
6
1
8
0
2
2
0
2
1
2
1
1
2
2.40.31
1.50.24
1.40.27
1.50.35
1.80.25
1.50.26
4.20.63
3.60.68
2.90.47
3.60.47
3.70.60
2.20.40
4.20.96
6.50.94
4.10.71
(2)-1 Strontium-90 and Cesium-137in Rice(producing
districts)
(from Dee.1986 to Jan.1987)
-COntinuedfrom NO.79 0f this publication-
Table(2)-1:Strontium-90 and Cesium-137in Rice
Component 90sr
Location
Ash(%) Ca(g/Eg)E(g/g) pCi/Eg S.U.
December,1986
Yamaguchi,YAMAGUCHI
January,1987
Akashi,HYOGO
0.584 0.042 0.998 0.0 0.26 0 6.1
0.577 0.047 0.819 0.1 0.22 2 4.8
(8)
(2)-2 Strontium-90 and Cesium-137in Rice(COnSuming
districts)
(froI Dee.1986 to Jan.1987)
-COntinuedfrom NO.79 0f this publication-
Table(2)-2:Strontium-90 &nd Cesium-137in Rice
Component
Location
Ash(%) Ca(g/g)E(g/Eg) pCi/Kg S.U.
December,1986
Tottori,TOTTORI
Matsue,SHIMANE
Seto-maChi,0AYAMA
January,1987
Hirosaki,AOMORI
Eobe,HYOGO
Nagasaki,NAGASAXI
Yonagusuku-mura,OKINAWA
0.597 0.038 0.794
0.630 0.042 0.875
0.566 0.043 1.23
0.514 0.037 0.868
0.570 0.041 0.980
0.651 0.042 0.937
0.599 0.033 0.844
6
2
2
2
2
2
0
0
0
3
1
0
0
0
0
0
5
4
2
2
2
2
3
0
0
00
2
3
1
6
0
U
O
9 6.8
1 5.1
0 5.2
4
1
8
6
5
6
5
9
4
7
2
91
(3)-1 Strontium-90 &nd Cesium-137in Milk(producing districts
for domestic progr(from Feb.1987 to Jun.1987)
-COntinuedfrom NO.79 0f this publication-
Table(3)-1:Strontium-90 and Cesium-137in Milk
Component 90sr
Location
Ash(g/1)Ca(g/l)K(e/l) pci/ls.u.
February,1987
Aomori,AOMORI
Mito,IBARAGI
7.24 1.12
7.11 1.11
Oshimizu-maChi.ISHIRAWA 7.32 1.16
Mihara-maChi,HYOGO
Matsuyama,EHIME
June,197
Yamato-maChi,SAGA
7.22 1.08
7.79 1.22
7.01 1.04
1.54 1.70.29
1.56 0.90.24
1.57 2.10.33
1.58 1.00.28
1.51 0.40.20
1.30 1.20.21
1.50.25
0.80.21
1.80.29
0.90.26
0.30.16
1.20.20
(12)
(3)-4 Strontium-90 and Cesium-137in Milk(povderd milk)
-COntinued from NO.79 0f this publication-
Table(3)-4:Strontium-90 and Cesium-137in Milk
Component
Location
Ash(%) Ca(g/Eg)(g/Eg) pCi/Eg S.U.
June,1987
Sample A
Sample B
Sample C
Sample D
Sample*D
Jnly,1987
SampleA
2.56 3.84 5.96
2.66 3.70 5.88
2.56 4.02 5.20
2.61 3.45 6.19
8.18 12.7 18.5
8.14 12.4 18.4
2.60.37
2.20.37
2.80.38
4.10.42
16 0.8
19 0.9
0.70.10
0.60.10
0.70.09
1.20.12
1.20.06
1.60.07
*Skimmilk
(4)-1 Strontiun-90 and Cesium-137in Vegetables(producing
districts)
(from Nov.1986 to Jan.1987)
-COntinuedfrom NO.79 0f this publication-
Table(4)-1:Strontium-90 and Cesium-137in Vegetables
Component 90sr
Location
Ash(%) Ca(g/Eg)K(g/Kg) pCi/Eg S.U.
(Japanese radish)
Novelnber,1986
Sannohe-maChi,AOMORI
Shime-maChi,FUUOEA
Xaimon-maChi,AGOSHIMA
December,1986
Wakayama,WAKAYAMA
January,1987
Yuya-maChi,YAMAGUCHI
Xubokawa-maChi,EOCHI
(Cabbage)
NovembeI,1986
Sannohe-maChi,AOMORI
January,1987
umatori-maChi,OSAEA
(Spinach)
November,1986
0.585 0.256 2.56
0.561 0.228 2.57
0.576 0.150 2.83
0.537 0.231 2.44
0.761 0.242 3.03
0.617 0.291 2.63
0.656 0.426 2.62
0.555 0.408 2.07
7.00.51 27 2.0
6.40.35 28 1.5
3.80.30 26 2.0
2.20.22 9.40.95
5.90.47 24 1.9
2.10.35 7 1.2
9.90.55 23 1.3
2.50.35 6.20.85
(14)
(4)-2 Strontium-90 and Cesium-137in Vegetables(COnSuming
di$tricts)
(from Oet.1986 to Feb.1987)
-COntinuedfrom NO.79 0f this publication-
Table(4)-2:StrontiuJn-90 and Cesium-137in Vegetables
Component 90sr
Location
Ash(%) Ca(g/Kg)E(g/g) pCi/Eg S.U.
(Japanese radish)
October,1986
Kyoto,YOTO
November,1986
Niigata,NIIGATA
0.494 0.150 2.29
0.344
January,1987
Nagasaki,NGASAEI O.523
Yonagusuku-mura,OEINAWA l.07
February.1987
Yokohama,NAGAWA O.432
(Spinach)
November,1986
Eyoto,YOTO 1.50
January,1987
Nagasaki,NAGASAKI l.59
Yonagusuku-mura,OEINAWA l.29
February,1987
Yokohama,ANAGAWA 1.47
0.127 1.34
0.180 2.46
0.395 4.73
0.200 1.72
0.747 5.74
0.416 7.00
0.621 5.24
0.423 6.72
6.10.32 41 2.2
0.90.24 7 1.9
1.70.37 9 2.1
1.20.35 3.00.89
0.20.22 1 1.1
2.00.30 2.70.40
1.20.38 2.80.91
0.40.30 0.60.48
1.90.35 4.60.82
(5) Strontium-90 and Cesium-137in Tea(Japanese Tea)
(fro ay1987 to Jn.1987)
-COntinuedfrom NO.79 0f this publication-
Table(5):Strontium-90 and Ce8iuJn-137in Tea(Japane$e Tea)
Component 90sr
Location
Ash(%) Ca(g/g)E(g/Kg) pCi/g S.U.
May,1987
Shuzenji-maChi,SHIZUOXA
Ivata,SHIZUOXA
Uji,YOTO
Jnne,1987
aya-maChi,YOTO
4.88 2.64 18.9
5.02 2.64 21.5
5.20 2.64 19.5
5.28 4.87 16.6
Miyanojou-maChi,EAGOSHIMA 5.26 2.48 19.8
Chiran-maChi.EAGOSHIMA 4.59 2.02 17.5
593.4
182.4
473.5
413.4
202.7
132.2
22 1.3
6.80.90
18 1.3
8.40.69
8 1.1
6 1.1
(16)
(6) Strontium-90 and Cesium-137in Sea Fish
(from Nov.1986 to Jun.1987)
-COntinued from NO.79 0f this publication-
Table(6):Strontium-90 and Ce$ium-137in Sea Fish
Component 9Osr
Loeation
Ash(%) Ca(g/Eg)E(g/Eg) pCi/Eg S.U.
(Branchiostegus sp.)
November,1986
Nagasaki,NAGASAEI
(Katsuwonus pelamis)
May,1987
Tosa,EOCHI
(Limanda herzensteini)
February,1987
00take,HIROSHIMA
June,1987
Sendai,MIYAGI
(Spratel10ides gracilis)
December,1986
Akune,AGOSHIMA
(Scomber japonicus)
November,1986
yoto,KYOTO
January,1987
Sakaiminato,TOTTORI
1.24
1.42
2.88
1.10
1.19
0.585 3.73 0.00.51 0.0 0.86
0.675 4.36
6.98 3.28
6.60 3.46
5.98 3.35
0.340 2.40
0.573 2.69
0.50.24 0.7 0.36
0.60.26 0.1 0.04
0.20.21 0.030.03
0.40.25 0.1 0.04
0.20.18 0.5 0.54
0.30.21 0.6 0.36
Sea Fish
Japanese name English name Scientific name
Amadai
Xatsuo
Earei
Xibinago
Saba
Takasago
Mebaru
Tilefish
Bonito
Flatfish
Banded blue-Sprat
Common mackerel
Black-tipped fusilier
Black Rockfish
Branchiostegus
Xatsuwonus pela
Limanda herzens
Spratelloides g
Scomber japonicCaesio chrysozo
Sebastes inermi
(18)
(7) Strontium-90 and Cesium-137in Shellfish
(from Feb.1987 to Jun.1987)
-COntinued from NO.79 0f this publication-
Table(7):Strontium-90 and Cesium-137in Shellfish
Component g=Osr
Location
Ash(%) Ca(g/g)E(g/Kg) pCi/g S.U.
(Venerupis phillipinarum)
May,1987
Takaki-maChi,NAGASAXI
(Ostrea gigas)
February,1987
Hiroshima,HIROSHIMA
(Turbo eornutus)
May,1987
Ryotsu,NIIGATA
June,1987
Sakata,YAMAGATA
1.40 1.15 1.73 0.30.34 0.3 0.30
1.91 0.604 2.11 2 1.5 3 2.4
2.07 0.426 3.26 0.70.66 2 1.5
2.44 1.27 2.37 0.30.35 0.2 0.27
Shellfish
Japanese name English n&me Scientific name
Asari
Xaki
Sazae
Short-neCked clam
Oyster
Wreath shell
Venerupis phill
Ostrea gigas
Turbo cornutus
(8) Strontium-90 and Cesium-137in Seaveeds
(from Apr.1986 to Jun.197)
-COntinuedfrom NO.79 0f this publication-
Table(8):StrontiuJn-90 and Cesium-137in SeaYeeds
Component S?Osr
Location
Ash(%) Ca(g/Kg)E(g/Rg) pCi/Kg S.U.
(Undaria pinnatifida)
April,1986
Togi-maChi,ISHIEAWA
February,1987
Minamichita-maChi,AICHI
Hiroshima,HIROSHIMA
Shimabara,NAGASAKI
April,1987
Togi-maChi,ISHIRAWA
May,1987
Ryotsu,NIIGATA
Jnne,1987
Sakata,YAMAGATA
3.55
2.04
2.27
3.47
3.70
3.45
2.27
0.740 5.70
0.688 5.73
0.522 5.75
0.787 11.1
0.879 5.27
1.19 5.81
1.25 4.10
0.80.24 1.0 0.32
1.10.23 1.6 0.34
1.00.25 1.9 0.48
1.10.26 1.5 0.33
1.20.28 1.3 0.32
0.80.26 0.7 0.22
1.90.27 1.5 q.22
Seaveed8
Japanese name English name Scientific name
(20)
* * * TotaIDiet * * *
< Strontium-90 >
(pCi/p.d
1E+2
1E+1
1E+0
1E-1
0
~
fYe8r
< Cesium-137 >
(pCi/p.d)
1E+3
1E+2
1E+1
1E+0
0
--
1983 1981 1985 1986 1987
* * * Rice(producing districts) * **
Strontium-90 >
fpCi/Kg)
: /
/ /
//
/
1983 198 1985 1986 1987(Y8r)
Cesium-137 >
pCi/Kg)
1983 198 1985 1986 1987
(22)
* * * Rice(consuming districts) * * *
< Strontium-90 >
pCi/K8)
(Ye8r
< Cesium-137 >
pCi/K8)
*** M=k(producing districts for domesti
Strontum-90 >
IpCilI
1E+3
1E+2
1E+l
lE+0
0
..
/8-
83 1985 88 87
(Yr
pCil)
Cesium-137 >
1983 1984 1985 198$ 1887
(24)
*** M=k(producing districts for WHO pro
Strontium-gO >
pCilI
1E+3
1E+2
1E+1
1E+0
0
-..-
l
l
IYr)
(pCi/l
1E+3
1E+2
1E+1
1E+0
0
Cesium-137 >
t---
t
I
1-tJ-J
1988 1987
* * * M=kconsuming districts) * * *
Stron=um-90 >
(pCil
(Yer)1983 1984 1985 1986 1987
fpCi/
1E3
1E+2
1E1
1E+0
0
< Cesium-137 >
Dt0
1983 198 1985 1986 1987
(26)
* * * Podered M=k * * *
Strontium-90 >
tpCi/Kgl
1E+3
1E2
1E+l
lE+0
0
-------------
;F;
7Ye-rl
Cesium-137 >
pCi/Ko
1E+
1E+3
1E2
1E+1
0 Q
/
1983 198 1985 1g86 87
* * * Vegetab[es(producing districts) *
Japanese radish
< Strontium-90 >
(pC/Kg)
1E+3
1E+2
1E+1
1E+0
0
..====
1983 198 1985 1986 1987Yr)
< Cesium-137 >
pCi/Kg
1E+2
1E+1
1E+0
1E-1
0
---_1_
1983 1984 1985 1986 1987
(28)
*** VegetabTes(consuming districts) *
Japanese radish
< Strontium-90 >
pCiK8)
1E+3
1E+2
1E+1
1E+0
0
-----~-----
'.. (Yr
Cesum-137 >
pCi/Ko)
986 1987
* ** TeaJap8neSe Tea) ***
Str8ntium-90 >
(pCiK8)
1E+
1E+3
1E+2
1E+
0
;=1983 198 1985 1986 1987
Yr
< Ce3ium-137 >
pCiK8)
1E+5
1E+
1E+3
1E+2
0
.:....
;~~~------f_r
=-_
1983 1984 1985 1986 1987
(30)
* * * Sea Fish * * *
Scomber japonicus
< Strontium-90 >
pCi/K8)
1E+2
1E+1
1E+0
1E-1
0
---
986 1987 Ye8r
< Ce3ium-137 >
pCi/K8)
1E+3
1E+2
1E+1
1E+0
0
-;;
1983 198 1985 1986 1987
* * * She=fish * * *
Turbo cornutus
< Strontium-90 >
pCi/Kg)
1E+2
1E+1
1E+0
1E-1
0
-
{=..---
1983 1981 1985 1986 1987(Yrl
Cesium-137 >
tpCi/Kg)
1E+2
1E+1
1E+0
1E-1
0
:::
1983 198 1985 1986 1987
(32)
* * * Seaweeds * * *
ndaria pinnatifida
Strontium-90 >
pCi/K8
lE+2
1E+1
1E+0
1E-1
0
Y8r
Cesium-137 >
(pCi/K8
1E+2
1E+l
lE+0
1E-1
0
..11..
** Sampling Locations
1:S8PPOrD
2:A8mOr
3:kit8
A:Send8i
5:Y8m888t8
6:Fuku8hm8
7:Nii88t8
8:M=
9:Chib8
:Shinjuku
ll:N8g8n8
12:Yokoh8m
13:K8n8=8
14:Shizuok8
15:Fukui
16:N8g8
17:Kt8
18:Os8k8
19:Tottori
20:Kob
21:W8k88m8
22:Ok8y8m8
23:Mtt8Ue
2:H=m
25:Kochi
26:M8tuy8m8
27:Y8m89Uh
28:Fukuok8
29:Stg
30:N8g88
31:K8908him8
32:N8h8
135
SEA of JAPAN
J~':.
PACIFC OCEAN
0 2L--- !
__
t
a
l}
Cover PageContentsResults(1) Total diet(2)-1 Rice (producing
districts)(2)-2 Rice (consuming districts)(3)-1 Milk (producing
districts for domestic program)(3)-4 Milk (powdered milk)(4)-1
Vegetables (producing districts)(4)-2 Vegetables (consuming
districts)(5) Tea(6) Sea fish(7) Shellfish(8) Seaweeds
Sampling Locations
