figure 2.2 herbicide spray missions, aluoi valley, viet ......figure 2.2 herbicide spray missions,...
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![Page 1: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/1.jpg)
![Page 2: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/2.jpg)
Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970).
N
VN849: SPLINE6.APR
Spray Mission (lines)Orange HerbicideBlue HerbicideWhite Herbicide
(Source: US Dept. of the Army)
LAO PDR
LAO PDR
LAO PDR
16 10'107
00'
o
o
0 10 20 Kilometres
Location of abandoned US Special Forces Bases
Aluoi
Ta Bat
A So(formerly A Shau)
![Page 3: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/3.jpg)
Figure 2.3 Herbicide distribution/frequency of spray missions, Aluoi Valley, Viet Nam, (1965-1970).
N
VN849: SPDIST7.APR
Spray Frequency (number of missions)0-12345-11
(Source: US Dept. of the Army)
LAO PDR
LAO PDR
LAO PDR
16 10'107
00'
o
o
0 10 20 Kilometres
Location of abandoned US Special Forces Bases
A So(formerly A Shau)
Ta Bat
Aluoi
![Page 4: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/4.jpg)
![Page 5: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/5.jpg)
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cida849:cida849 fig2.7&2.8.xls:fig 2,7
Percent composition of particle size fractions (sand, silt and clay) and Total TEQ (pg/g [ppt], dry weight; log scale) in soils (0-10 cm depth) from the Aluoi Valley, Viet Nam, March 1999.
0%
50%
100%
A D
ot C
omm
une
A D
ot C
omm
une
A D
ot C
omm
une
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
Huo
ng L
am C
omm
une
Huo
ng L
am C
omm
une
Huo
ng P
hong
Com
mun
e
Huo
ng P
hong
Com
mun
e
Phu
Vinh
Com
mun
e
Phu
Vinh
Com
mun
e
Hon
g Thu
ong
Comm
une
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Bo
Dot M
arke
t
Son
Thu
y Com
mun
e
Son
Thu
y Com
mun
e
Hon
g Qua
ng C
omm
une
A L
uoi C
omm
une
A L
uoi M
arke
t
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Hon
g Kim
Com
mun
e
Hon
g Van
Com
mun
e
Hon
g Van
Com
mun
e
Sample Site
% C
om
po
siti
on
0.1
1
10
100
1000
To
tal T
EQ
(p
g/g
, dry
wei
gh
t; lo
g s
cale
)
%Clay
%Silt
%Sand
Total TEQ
A So SpecialForces Base
Ta Bat SpecialForces Base
Aluoi SpecialForces Base
Figure 2.7
![Page 8: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/8.jpg)
cida849:cida849 fig2.7&2.8.xls:fig 2.8
Total organic carbon (TOC) content (% carbon) and Total TEQ (pg/g [ppt], dry weight; log scale) in soils (0-10 cm depth) from the Aluoi Valley, Viet Nam, March 1999.
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
A D
ot C
omm
une
A D
ot C
omm
une
A D
ot C
omm
une
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
A S
o Spe
cial F
orce
s Bas
e
Huo
ng L
am C
omm
une
Huo
ng L
am C
omm
une
Huo
ng P
hong
Com
mun
e
Huo
ng P
hong
Com
mun
e
Phu
Vinh
Com
mun
e
Phu
Vinh
Com
mun
e
Hon
g Thu
ong
Comm
une
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Ta
Bat S
pecia
l For
ces B
ase
Bo
Dot M
arke
t
Son
Thu
y Com
mun
e
Son
Thu
y Com
mun
e
Hon
g Qua
ng C
omm
une
A L
uoi C
omm
une
A L
uoi M
arke
t
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Aluo
i Spe
cial F
orce
s Bas
e
Hon
g Kim
Com
mun
e
Hon
g Van
Com
mun
e
Hon
g Van
Com
mun
e
Sample Site
%Carbon
0.1
1
10
100
1000
To
tal
TE
Q (
pg
/g,
dry
we
igh
t; l
og
sc
ale
)
TOC (% carbon)
Total TEQ
A So Special Forces Base
Aluoi Special Forces Base
Ta Bat Special Forces Base
Figure 2.8
![Page 9: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/9.jpg)
cida849:cida849 fig2.9.xls;96 97 99 Chart
TCDD and Total TEQ concentrations in vegetation and animal tissues (pg/g [ppt], dry weight [vegetation]; pg/g, wet weight [animal tissues]), Aluoi Valley, Viet Nam (1996, 1997 and 1999).
0 15 30 45 60 75 90
rice (332)
duck fat (355)
fish fat (380/386)
fish fat (391/395)
fish liver (23)
cooking oil (494/495/496)
pig fat (694)
manioc root (03)
fish liver (18)
wild fish liver (499)
fish fat (40)
pig fat (482)
pig liver (629)
fish liver (124)
fish fat (131/135)
fish fat (151)
manioc root (06)
fish liver (20)
cow fat (690)
fish liver (245/250/254)
duck fat (169)
duck fat (163)
fish fat (186/199/203)
fish fat (223)
rice (272/274/433)
chicken egg (434)
duck fat (325)
duck fat (329)
fish muscle (281)
fish liver (276)
fish fat (284)
fish fat (307/314)
fish fat (278)
fish fat (451)
fish fat (443)
fish fat (438/447)
duck fat (045)
fish fat (019)
fish fat (027)
fish fat (031)
fish fat (039)
duck liver (08)
fish liver (14)
fish fat (46)
Sam
ple
Med
ia (
sam
ple
#)
pg/g
0 15 60 90
pg/g
A So Commune
30 45 75
Figure 2.9
Huong Lam Commune
Hong Thuong Commune
Son Thuy Commune
Xa Nham Commune
A Ngo Commune
Aluoi Commune
Hong Ha Commune
Hong Van Commune
TCDDTotal TEQ
1996
1997
1999
Sample # Prefixes: 1996: VN96##
1997: 97VN###
1999: 99VN###
Composite Sample: ###/###/###
Parentheses enclose abreviated sample number
![Page 10: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/10.jpg)
cida849;cida849 fig2.10.xls;fig 2.10
TCDD and Total TEQ (pg/g [ppt], lipid basis) for whole human blood, Aluoi Valley, Viet Nam, 1997 and 1999.
0
5
10
15
20
25
30
35
40
45
50
Commune
pg
/g, l
ipid
bas
is
males >25 years of age
males <25 years of age
females >25 years of age
females <25 years of age
Total TEQTCDD
A So Huong Lam Hong Thuong Hong VanA So1997 1999199919991999
Figure 2.10
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Mean TCDD levels in whole human blood used in a 3-way ANOVA that determined the interaction of sex and commune location within the Aluoi Valley, Viet Nam, 1999.
1.55
13.0
1.6
4.95
9.8
14.815.0
36.0
0
5
10
15
20
25
30
35
40
Females Males
Sex
Me
an
TC
DD
(p
g/g
[p
pt]
, li
pid
ba
sis
)
Figure 2.11
A So Commune
Hong Thuong Commune
Huong Lam Commune
Hong Van Commune
cida849;cida849 fig2.11.xls
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![Page 13: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/13.jpg)
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Figure 2.14 TCDD concentrations (pg/g [ppt], lipid basis) and Total TEQs (% TCDD of Total TEQ in parentheses) determined in human blood from unexposed participants (non-Viet Nam studies) in industrialized countries, and in individuals in the Aluoi Valley, Viet Nam, 1999 (cf., Tables 2.7 and 2.8).
1 Tepper et al. 1997. 10 Welge et al. 1993. 2 Schecter et al. 1992c. 11 Papke et al. 1990. 3 Schecter 1994b (Table 15). 12 Cole et al. 1997. 4 Gonzalez et al. 1998. 13 Jiminez et al. 1996. 5 Wuthe et al. 1996. 14 Papke et al. 1996. 6 Schecter 1994b (Table 9). 15 Schecter et al. 1993b. 7 Hesso et al. 1992. 16 Schecter et al. 1994b. 8 Schecter 1994b (Table 8). 17 Schecter 1992. 9 Rosenberg et al. 1995. 18 Piacitelli et al. 1992.
(0.0%)
(0.0%)
(0.0%)
(0.0%)
(66.1%)
(48.8%)
(57.0%)
(65.0%)
(0.0%)
(24.1%)
(45.5%)
(66.4%)
(84.3%)
(87.4%)
(88.6%)
(89.3%)
(52.9%)
(20.4%)
(8.6%)
(25.9%)
(15.2%)
(10.6%)
(0.0%)
(12.4%)
(8.2%)
(16.0%)
(15.4%)
(12.1%)
(31.0%)
(10.4%)
(10.4%)
(8.4%)
(53.8%)
(4.7%)
(0.0%)
(0.0%)
(17.8%)
(16.1%)
(15.6%)
(18.0%)
(14.6%)
(16.4%)
(13.0%)
(13.1%)
(6.8%)
(12.7%)
(12.0%)
(15.0%)
(14.5%)
(9.3%)
(12.7%)
(8.6%)
(26.5%)
(20.6%)
(9.3%)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0
Females (<25 yrs) (n=37)
Females (>25 yrs) (n=27)
Males (<25 yrs) (n=40)
Males (>25 yrs) (n=37)
HONG VAN COMMUNE
Females (<25 yrs) (n=25)
Females (>25 yrs) (n=37)
Males (<25 yrs) (n=27)
Males (>25 yrs) (n=43)
HONG THUONG COMMUNE
Females (<25 yrs) (n=27)
Females (>25 yrs) (n=29)
Males (<25 yrs) (n=33)
Males (>25 yrs) (n=31)
HUONG LAM COMMUNE
Females (<25 yrs) (n=41)
Females (>25 yrs) (n=44)
Males (<25 yrs) (n=30)
Males (>25 yrs) (n=48)
A SO COMMUNE
Russia (general Ufa population) (pool)16
USA (referent) (29<n<80)18
Germany (control) (n=85)17
Russia (general population) (pool)15,16
Germany (adults) (n=134)14
Spain (adults) (n=11)13
Canada (fish eater, >50 yrs) (pool)12
Canada (fish eater, 38-50 yrs) (pool)12
Canada (fish eater, <38 yrs) (pool)12
Canada (fish eater, >50 yrs) (pool)12
Canada (fish eater, 38-50 yrs) (pool)12
Canada (fish eater, <38 yrs) (pool)12
Canada (reference) (n=10)11
Germany (non-vegetarians) (n<25)10
Germany (vegetarians) (n<25)10
Finland (control) (n=14)9
Russia (control) (pool)8
Finland (control) (n=3)7
China (>40 yrs) (pool)6
China (15-19 yrs) (pool)6
Germany (rural) (pool)5
Germany (rural) (pool)5
Germany (rural industrial) (pool)5
Germany (rural industrial) (pool)5
Germany (urban industrial) (pool)5
Germany (urban industrial) (pool)5
Germany (adults) (n=15)5
Spain (females, 40-69 yrs) (2 pools)4
Spain (females, 18-39 yrs) (2 pools)4
Spain (males, 50-69 yrs) (2 pools)4
Spain (males, 30-49 yrs) (2 pools)4
Spain (males, 18-29 yrs) (2 pools)4
USA (Missouri) (pool)3
Guam (n=10)2
USA (pool)2
Germany (n=102)2
Russia (St. Petersburg) (pool)2
Russia (Baikalsk) (pool)2
USA (residents) (n=16)1
TCDD Concentration and Total TEQ (pg/g, lipid basis)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0
Total TEQ
TCDD
Non-Viet Nam Studies:
Viet Nam (This Study):
CIDA 849;07/04/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 15: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/15.jpg)
Figure 2.15 Ratios of P5CDD to TCDD levels (pg/g [ppt], lipid basis) calculated from human blood data reported in other investigations involving unexposed participants, and this study (1999) (cf., Tables 2.7 and 2.8).
1 Tepper et al. 1997. 10 Welge et al. 1993. Note: NC denotes a ratio could not be calculated 2 Schecter et al. 1992c. 11 Papke et al. 1990. given that either P5CDD or TCDD was below 3 Schecter 1994b (Table 15). 12 Cole et al. 1997. detection, or the P5CDD level was not reported. 4 Gonzalez et al. 1998. 13 Jiminez et al. 1996. 5 Wuthe et al. 1996. 14 Papke et al. 1996. 6 Schecter 1994b (Table 9). 15 Schecter et al. 1993b. 7 Hesso et al. 1992. 16 Schecter et al. 1994b. 8 Schecter 1994b (Table 8). 17 Schecter 1992. 9 Rosenberg et al. 1995. 18 Piacitelli et al. 1992.
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Females (<25 yrs) (n=37)
Females (>25 yrs) (n=27)
Males (<25 yrs) (n=40)
Males (>25 yrs) (n=37)
HONG VAN COMMUNE
Females (<25 yrs) (n=25)
Females (>25 yrs) (n=37)
Males (<25 yrs) (n=27)
Males (>25 yrs) (n=43)
HONG THUONG COMMUNE
Females (<25 yrs) (n=27)
Females (>25 yrs) (n=29)
Males (<25 yrs) (n=33)
Males (>25 yrs) (n=31)
HUONG LAM COMMUNE
Females (<25 yrs) (n=41)
Females (>25 yrs) (n=44)
Males (<25 yrs) (n=30)
Males (>25 yrs) (n=48)
A SO COMMUNE
Russia (general Ufa population) (pool)16
USA (referent) (29<n<80)18
Germany (control) (n=85)17
Russia (general population) (pool)15,16
Germany (adults) (n=134)14
Spain (adults) (n=11)13
Canada (fish eater, >50 yrs) (pool)12
Canada (fish eater, 38-50 yrs) (pool)12
Canada (fish eater, <38 yrs) (pool)12
Canada (fish eater, >50 yrs) (pool)12
Canada (fish eater, 38-50 yrs) (pool)12
Canada (fish eater, <38 yrs) (pool)12
Canada (reference) (n=10)11
Germany (non-vegetarians) (n<25)10
Germany (vegetarians) (n<25)10
Finland (control) (n=14)9
Russia (control) (pool)8
Finland (control) (n=3)7
China (>40 yrs) (pool)6
China (15-19 yrs) (pool)6
Germany (rural) (pool)5
Germany (rural) (pool)5
Germany (rural industrial) (pool)5
Germany (rural industrial) (pool)5
Germany (urban industrial) (pool)5
Germany (urban industrial) (pool)5
Germany (adults) (n=15)5
Spain (females, 40-69 yrs) (2 pools)4
Spain (females, 18-39 yrs) (2 pools)4
Spain (males, 50-69 yrs) (2 pools)4
Spain (males, 30-49 yrs) (2 pools)4
Spain (males, 18-29 yrs) (2 pools)4
USA (Missouri) (pool)3
Guam (n=10)2
USA (pool)2
Germany (n=102)2
Russia (St. Petersburg) (pool)2
Russia (Baikalsk) (pool)2
USA (residents) (n=16)1
P5CDD/TCDD Ratio
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Viet Nam (This Study):
Non-Viet Nam Studies:
CIDA 849;18/04/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 16: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/16.jpg)
Figure 2.16 TCDD concentrations (pg/g [ppt], lipid basis) and Total TEQs (% TCDD of Total TEQ in parentheses) determined in human blood from exposed participants (i.e., some form of exposure in industrialized countries), and individuals in the Aluoi Valley, Viet Nam, 1999 (cf., Tables 2.7 and 2.9).
1 Tepper et al. 1997. 8 Schecter 1994b (Table 8). 2 Ayotte et al. 1997. 9 Rosenberg et al. 1995. 3 Papke et al. 1992. 10 Papke et al. 1990. 4 Wuthe et al. 1992. 11 Cole et al. 1997. 5 Demi et al. 1996. 12 Schecter 1992. 6 Schecter 1994b (Table 9). 13 Schecter et al. 1993a. 7 Hesso et al. 1992. 14 Schecter et al. 1994b.
(0.0%)
(0.0%)
(0.0%)
(0.0%)
(66.1%)
(48.8%)
(57.0%)
(65.0%)
(0.0%)
(24.1%)
(45.5%)
(66.4%)
(84.3%)
(87.4%)
(88.6%)
(89.3%)
(57.5%)
(21.7%)
(27.1%)
(45.5%)
(11.7%)
(18.5%)
(16.7%)
(15.8%)
(19.1%)
(13.0%)
(11.7%)
(16.2%)
(11.9%)
(5.2%)
(9.3%)
(70.3%)
(8.7%)
(27.9%)
(24.4%)
(7.6%)
(8.3%)
(16.3%)
(5.8%)
(57.2%)
(21.2%)
(9.5%)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0
Females (<25 yrs) (n=37)
Females (>25 yrs) (n=27)
Males (<25 yrs) (n=40)
Males (>25 yrs) (n=37)
HONG VAN COMMUNE
Females (<25 yrs) (n=25)
Females (>25 yrs) (n=37)
Males (<25 yrs) (n=27)
Males (>25 yrs) (n=43)
HONG THUONG COMMUNE
Females (<25 yrs) (n=27)
Females (>25 yrs) (n=29)
Males (<25 yrs) (n=33)
Males (>25 yrs) (n=31)
HUONG LAM COMMUNE
Females (<25 yrs) (n=41)
Females (>25 yrs) (n=44)
Males (<25 yrs) (n=30)
Males (>25 yrs) (n=48)
A SO COMMUNE
Russia (office workers in agrochemical plant) (n=2)14
USA (PCB exposure) (n=2)13
USA (pulp plant) (n=2)13
USA & Europe (chemists) (n=3)12
Canada (fish eater, >50 yrs) (pool)11
Canada (fish eater, 38-50 yrs) (pool)11
Canada (fish eater, <38 yrs) (pool)11
Canada (fish eater, >50 yrs) (pool)11
Canada (fish eater, 38-50 yrs) (pool)11
Canada (fish eater, <38 yrs) (pool)11
Germany (distillation plant fire) (n=7)10
Germany (relay station fire) (n=25)10
Germany (hospital fire) (n=53)10
Finland (paper mill) (n=20)9
Finland (pulp bleaching plant) (n=14)9
Russia (chemical workers' children) (n=6)8
Finland (lab personnel) (n=7)7
China (Na-PCP sprayed areas, 40 yrs) (n=50)6
China (Na-PCP sprayed areas, 15-19 yrs) (n=50)6
Germany (incinerator plant) (n=20)5
Germany (incinerator plant) (n=19)5
Germany (pyrolysis plant) (n=12)4
Germany (metal plant) (n=32)3
Germany (TCP accident) (n=17)3
Canada (Quebec, sea-food based diet) (n=9-55)2
USA (pulp mill) (n=46)1
TCDD Concentration and Total TEQ (pg/g, lipid basis)
0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0
Total TEQ
TCDD
Non-Viet Nam Studies:
Viet Nam (This Study):
CIDA 849;07/04/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 17: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/17.jpg)
Figure 2.17 Ratios of P5CDD to TCDD levels (pg/g [ppt], lipid basis) calculated from human blood data reported in other invesigations involving exposed participants, and this study (1999) (cf., Tables 2.7 and 2.9).
1 Tepper et al. 1997. 8 Schecter 1994b (Table 8). Note: NC denotes a ratio could not be calculated 2 Ayotte et al. 1997. 9 Rosenberg et al. 1995. given that either P5CDD or TCDD was below 3 Papke et al. 1992. 10 Papke et al. 1990. detection, or the P5CDD level was not reported. 4 Wuthe et al. 1992. 11 Cole et al. 1997. 5 Demi et al. 1996. 12 Schecter 1992. 6 Schecter 1994b (Table 9). 13 Schecter et al. 1993a. 7 Hesso et al. 1992. 14 Schecter et al. 1994b.
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Females (<25 yrs) (n=37)
Females (>25 yrs) (n=27)
Males (<25 yrs) (n=40)
Males (>25 yrs) (n=37)
HONG VAN COMMUNE
Females (<25 yrs) (n=25)
Females (>25 yrs) (n=37)
Males (<25 yrs) (n=27)
Males (>25 yrs) (n=43)
HONG THUONG COMMUNE
Females (<25 yrs) (n=27)
Females (>25 yrs) (n=29)
Males (<25 yrs) (n=33)
Males (>25 yrs) (n=31)
HUONG LAM COMMUNE
Females (<25 yrs) (n=41)
Females (>25 yrs) (n=44)
Males (<25 yrs) (n=30)
Males (>25 yrs) (n=48)
A SO COMMUNE
Russia (office workers in agrochemical plant) (n=2)14
USA (PCB exposure) (n=2)13
USA (pulp plant) (n=2)13
USA & Europe (chemists) (n=3)12
Canada (fish eater, >50 yrs) (pool)11
Canada (fish eater, 38-50 yrs) (pool)11
Canada (fish eater, <38 yrs) (pool)11
Canada (fish eater, >50 yrs) (pool)11
Canada (fish eater, 38-50 yrs) (pool)11
Canada (fish eater, <38 yrs) (pool)11
Germany (distillation plant fire) (n=7)10
Germany (relay station fire) (n=25)10
Germany (hospital fire) (n=53)10
Finland (paper mill) (n=20)9
Finland (pulp bleaching plant) (n=14)9
Russia (chemical workers' children) (n=6)8
Finland (lab personnel) (n=7)7
China (Na-PCP sprayed areas, 40 yrs) (n=50)6
China (Na-PCP sprayed areas, 15-19 yrs) (n=50)6
Germany (incinerator plant) (n=20)5
Germany (incinerator plant) (n=19)5
Germany (pyrolysis plant) (n=12)4
Germany (metal plant) (n=32)3
Germany (TCP accident) (n=17)3
Canada (Quebec, sea-food based diet) (n=9-55)2
USA (pulp mill) (n=46)1
P5CDD/TCDD Ratio
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Non-Viet Nam Studies:
Viet Nam (This Study):
CIDA 849;07/04/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 18: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/18.jpg)
0
5
10
15
20
25
30
35
Commune
TC
DD
(p
g/g
, lip
id b
asis
)Figure 2.18 TCDD concentrations (pg/g [ppt], lipid basis) in human breast milk
collected from the Aluoi Valley, Viet Nam, June 1999.
Huong LamA So Hong VanHong Thuong
0
5
10
15
20
25
30
35
Commune
To
tal T
EQ
(p
g/g
, lip
id b
asis
)
Huong LamA So Hong VanHong Thuong
Figure 2.19
Individual primaparous female
Mean of primaparous females (n=4) ± 1 SDIndividual multiparous female
Total TEQ (pg/g [ppt], lipid basis) in human breast milk collected from the Aluoi Valley, Viet Nam, June 1999.
Individual primaparous female
Mean of primaparous females (n=4) ± 1 SDIndividual multiparous female
cida849:cida849 fig2.18 & 2.19.xls:chart 1 data
![Page 19: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/19.jpg)
Figure 2.20 TCDD concentrations (pg/g [ppt], lipid basis) and Total TEQs determined in human breast milk reported inother investigations, and this study (1999) (cf., Tables 2.11 and 2.13).
1 Furst et al. 1994. 6 Jodicke et al. 1992. 11 Schuhmacher et al. 1999. 2 Schecter et al. 1994a. 7 Hooper et al. 1998. 12 Becher 1995. 3 Polder et al. 1998. 8 Jensen and Slorach 1991. 13 Schecter et al. 1989b. 4 Beck et al. 1994. 9 Dewailly et al. 1992, Dewailly et al. 1991. 14 Schecter et al. 1989c. 5 Korner et al. 1993. 10 Schecter et al. 1991a, Schecter 1994b.
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
M
P
M
M
M
M
M
M
P
P
P
M
P
P
P
M
M
M
99VN686
99VN678
99VN667
99VN666
99VN594
99VN592
99VN586
99VN579
99VN608
99VN603
99VN625
99VN609
99VN649
99VN655
99VN648
99VN629
0.0 10.0 20.0 30.0 40.0 50.0 60.0
Average Hong Van Commune (n=4)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Average Hong Thuong Commune (n=4)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Average Huong Lam Commune (n=4)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Average A So Commune (n=4)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Song Be Province (n=12)14
Ho Chi Minh City (n=38)14
Dong Nai (n=11)10
Da Nang (n=11)10
Ha Noi (n=30)10
Ho Chi Minh City (n=7)13
South (n=11)8
Tan Than [sic] Village (n=2)13
Lithuania (Anykshchiai) (n=10-12)12
Spain (Tarragona) (n=15)11
Cambodia (Phnom Penh) (n=8)10
Thailand (Bangkok) (n=10)10
Siberia (n=23)10
United States (n=42)10
Germany (n=185)10
Canada (Arctic) (n=40)9
Canada (S. Quebec) (n=96)9
Vienna (n=54)8
Belgium (Industrial) (n=1)8
Canada (Quebec) (n=34)8
Denmark (n=10)8
W. Berlin (n=40)8
Weiden (n=14)8
Japan (Fukuoka) (n=6)8
Netherlands (Urban) (n=1)8
Netherlands (Rural) (n=1)8
New Zealand (n=2)8
Norway (Tromso) (n=11)8
Sweden (Sundsvall) (n=10)8
UK (Birmingham) (n=1)8
Binghamton, NY (n=22)8
Los Angeles (n=21)8
Kazakhstan (Rural) (n=8)7
Germany (n=1)6
Germany (n=1)5
Germany (n=112)4
Murmansk (n=8)3
China (General Population) (n=50)2
China (Na-PCP Exposed) (n=50)2
Germany (n=526)1
TCDD Concentration and Total TEQ (pg/g, lipid basis)
0.0 10.0 20.0 30.0 40.0 50.0 60.0
Average TCDD
Average Total TEQ
TCDD
Total TEQ
Non-Viet Nam Studies:
Viet Nam (Other Studies):
Viet Nam (This Study): Sample ID#:
M = Mean/Median
P = Pool
CIDA 849;07/04/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 20: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/20.jpg)
Figure 2.21 Ratios of P5CDD to TCDD levels (pg/g [ppt], lipid basis) calculated from human breast milk data reported in other investigations, and this study (1999) (cf., Tables 2.11 and 2.13).
1 Furst et al. 1994. 6 Jodicke et al. 1992. 11 Schuhmacher et al. 1999. Note: NC denotes a ratio could not be calculated 2 Schecter et al. 1994a. 7 Hooper et al. 1998. 12 Becher 1995. given that P5CDD was below detection. 3 Polder et al. 1998. 8 Jensen and Slorach 1991. 13 Schecter et al. 1989b. 4 Beck et al. 1994. 9 Dewailly et al. 1992, Dewailly et al. 1991. 14 Schecter et al. 1989c. 5 Korner et al. 1993. 10 Schecter et al. 1991a, Schecter 1994b.
NC
NC
NC
NC
NC
99VN686
99VN678
99VN667
99VN666
99VN594
99VN592
99VN586
99VN579
99VN608
99VN603
99VN625
99VN609
99VN649
99VN655
99VN648
99VN629
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Song Be Province (n=12)14
Ho Chi Minh City (n=38)14
Dong Nai (n=11)10
Da Nang (n=11)10
Ha Noi (n=30)10
Ho Chi Minh City (n=7)13
South (n=11)8
Tan Than [sic] Village (n=2)13
Lithuania (Anykshchiai) (n=10-12)12
Spain (Tarragona) (n=15)11
Cambodia (Phnom Penh) (n=8)10
Thailand (Bangkok) (n=10)10
Siberia (n=23)10
United States (n=42)10
Germany (n=185)10
Canada (Arctic) (n=40)9
Canada (S. Quebec) (n=96)9
Vienna (n=54)8
Belgium (Industrial) (n=1)8
Canada (Quebec) (n=34)8
Denmark (n=10)8
W. Berlin (n=40)8
Weiden (n=14)8
Japan (Fukuoka) (n=6)8
Netherlands (Urban) (n=1)8
Netherlands (Rural) (n=1)8
New Zealand (n=2)8
Norway (Tromso) (n=11)8
Sweden (Sundsvall) (n=10)8
UK (Birmingham) (n=1)8
Binghamton, NY (n=22)8
Los Angeles (n=21)8
Kazakhstan (Rural) (n=8)7
Germany (n=1)6
Germany (n=1)5
Germany (n=112)4
Murmansk (n=8)3
China (General Population) (n=50)2
China (Na-PCP Exposed) (n=50)2
Germany (n=526)1
P5CDD/TCDD Ratio
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Viet Nam (Other Studies):
Viet Nam (This Study):
Non-Viet Nam Studies:
Sample ID#:
CIDA 849;11/05/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
![Page 21: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/21.jpg)
Figure 2.22 Polychlorinated dibenzo-p -dioxin (PCDD) and polychlorinated dibenzofuran (PCDF) congener profiles expressed asa percent of Total TEQ, determined in human breast milk during other investigations, and during the present study in the Aluoi Valley, Viet Nam, 1999; Toxicity Equivalent Factors were applied to the congener concentration (pg/g [ppt], lipid basis) to facilitate calculation of a percent contribution to total toxicity (2,3,7,8-T4CDD = TCDD; if data points were ND or NDR, 1/2 the detection level was used in the T-TEQ calculation; cf., Tables 2.11 and 2.13).
1 Furst et al. 1994. 6 Jodicke et al. 1992. 11 Schuhmacher et al. 1999. 2 Schecter et al. 1994a. 7 Hooper et al. 1998. 12 Becher 1995. 3 Polder et al. 1998. 8 Jensen and Slorach 1991. 13 Schecter et al. 1989b. 4 Beck et al. 1994. 9 Dewailly et al. 1992, Dewailly et al. 1991. 14 Schecter et al. 1989c. 5 Korner et al. 1993. 10 Schecter et al. 1991a, Schecter 1994b.
99VN686
99VN678
99VN667
99VN666
99VN594
99VN592
99VN586
99VN579
99VN608
99VN603
99VN625
99VN609
99VN649
99VN655
99VN648
99VN629
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Van Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Hong Thuong Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
Huong Lam Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
A So Commune (n=1)
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Tan Uyen District (n=2)14
Song Be Province (n=12)14
Ho Chi Minh City (n=38)14
Dong Nai (n=11)10
Da Nang (n=11)10
Ha Noi (n=30)10
Ho Chi Minh City (n=7)13
South (n=11)8
Tan Than [sic] Village (n=2)13
Lithuania (Anykshchiai) (n=10-12)12
Spain (Tarragona) (n=15)11
Cambodia (Phnom Penh) (n=8)10
Thailand (Bangkok) (n=10)10
Siberia (n=23)10
United States (n=42)10
Germany (n=185)10
Canada (Arctic) (n=40)9
Canada (S. Quebec) (n=96)9
Vienna (n=54)8
Belgium (Industrial) (n=1)8
Canada (Quebec) (n=34)8
Denmark (n=10)8
W. Berlin (n=40)8
Weiden (n=14)8
Japan (Fukuoka) (n=6)8
Netherlands (Urban) (n=1)8
Netherlands (Rural) (n=1)8
New Zealand (n=2)8
Norway (Tromso) (n=11)8
Sweden (Sundsvall) (n=10)8
UK (Birmingham) (n=1)8
Binghamton, NY (n=22)8
Los Angeles (n=21)8
Kazakhstan (Rural) (n=8)7
Germany (n=1)6
Germany (n=1)5
Germany (n=112)4
Murmansk (n=8)3
China (General Population) (n=50)2
China (Na-PCP Exposed) (n=50)2
Germany (n=526)1
% of Total TEQ
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
TCDD
P5CDD
H6CDD
H7CDD
O8CDD
T4CDF
P5CDF
H6CDF
H7CDF
O8CDF
Viet Nam (Other Studies):
Viet Nam (This Study):
Non-Viet Nam Studies:
Sample ID#:
CIDA 849;11/05/00;cida849 fig2.14-2.17 & 2.20-2.22.xls
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0
20
40
60
80
100
120
140
pg
/kg
bo
dy
wei
gh
t/d
ay
Figure 2.23
TDI (Canada)2
TDI Range
(WHO/EURO)3
Intake of polychlorinated dibenzo-p -dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) by infants through breast milk from primaparous females, Aluoi Valley, Viet Nam, 1999; Aluoi Valley data are compared to the tolerable daily intake (TDI; based on Total TEQ [T-TEQ]) values used in Canada (10 pg/kg body weight/day), and as recommended by WHO/EURO (1-4 pg/kg body weight/day).
Daily T-TEQ Intake (for individual primaparous females)1
Average Daily T-TEQ Intake (mean [± 1 SD] of the 4 primaparous females)1
A So Commune
Huong Lam Commune
Hong Thuong Commune
Hong Van Commune
1Based on a 5 kg infant consuming 700 ml breast milk/day with 3.5% lipid content in milk (WHO/EURO 1989).2Government of Canada (1993).3WHO/EURO (1998 a,b).
4 mean321 4 mean321 4 mean321 4 mean321
cida849:cida849 fig2.23.xls:fig 2.23
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CIDA849: Sect 3 figures1.xls,SFig3.1
0
5
10
15
20
25
30
35
59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99
Year
Per
cen
t o
f p
reg
nan
cies
Term death
Spontaneous abortion
Figure 3.1 Pregnancy outcomes (1959-1999) in four communes (A So, Huong Lam, Hong Thuong and Hong Van), in the Aluoi Valley, Viet Nam.
![Page 25: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/25.jpg)
CIDA849: Sect 3 figures1.xls,SFig3.2
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Figure 3.2 Birth outcomes (1959-1999) in four communes (A So, Huong Lam, Hong Thuong and Hong Van) in the Aluoi Valley, Viet Nam.
![Page 26: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/26.jpg)
CIDA849: Sect 3 figures1.xls,SFig3.3
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Figure 3.3 Total birth defects (1959-1999) in four communes in the Aluoi Valley, Viet Nam.
total birth defects = birth defects in living offspring + birth defects in term deaths
![Page 27: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/27.jpg)
CIDA849: Sect 3 figures1.xls,SFig3.4
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Figure 3.4 Birth defects in live offspring (1959-1999) in four communes in the Aluoi Valley, Viet Nam.
![Page 28: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/28.jpg)
CIDA849: Sect 3 figures1.xls,SFig3.5
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Figure 3.5 Total birth defects (1959-1999) in A So and three other communes in the Aluoi Valley, Viet Nam.
total birth defects = birth defects in living offspring + birth defects in term deaths
![Page 29: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/29.jpg)
CIDA849: Sect 3 figures1.xls,SFig3.6
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Figure 3.6 Birth defects in live offspring (1959-1999) in A So and three other communes in the Aluoi Valley, Viet Nam.
![Page 30: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/30.jpg)
dlfig51b.doc: 04/07/00
Figure 5.1 Historical population and forest cover trends in Viet Nam.
![Page 31: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/31.jpg)
dlfig52b.doc: 04/07/00
Figure 5.2 Changing forest cover in Viet Nam - 1943 to 1992.
![Page 32: Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet ......Figure 2.2 Herbicide spray missions, Aluoi Valley, Viet Nam (1965-1970). N VN849: SPLINE6.APR Spray Mission (lines) Orange](https://reader031.vdocuments.site/reader031/viewer/2022011814/5e50a25ffc54df0c0570799c/html5/thumbnails/32.jpg)
Land Use Types (in 1991)Rich ForestMedium ForestPoor ForestRecovered ForestPlantationBare LandRocky MountainAgriculture LandShifting Cultivation
Figure 5.3 Current (1991) land use map of Aluoi District (data from FIPI 1995).
N
CIDA849: FRST91_NEW4.APR
LAOS
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