Samples analyzed (golden list + ): SFU from IFUSP – 34 (fine + coarse modes) MOUDI from IFUSP – 2 (9 stages) HiVol from Gent – 22 (fine mode: front and back filters) Ion Chromatography of Rondonia-2002 samples Alla Falkovich, Gal Schkolnic and Yinon Rudich Dept. of Environmental Sciences Weizmann Institute, Rehovot Israel
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Samples analyzed (golden list + ): SFU from IFUSP – 34 (fine + coarse modes) MOUDI from IFUSP – 2 (9 stages) HiVol from Gent – 22 (fine mode: front and.
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Samples analyzed (golden list + ):
SFU from IFUSP – 34 (fine + coarse modes)
MOUDI from IFUSP – 2 (9 stages)
HiVol from Gent – 22 (fine mode: front and back filters)
Ion Chromatography of Rondonia-2002 samples
Alla Falkovich, Gal Schkolnic and Yinon Rudich
Dept. of Environmental SciencesWeizmann Institute, Rehovot Israel
2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0Minutes
1.01
1.25
1.50
1.75
2.00
uS
gly
ceri
cg
lyco
lic acet
ic
form
ic
MS
Ap
yru
vic
oxo
acet
icch
lori
de
nit
rite
nit
rate
adip
ic met
hyl
succ
inic
glu
tari
csu
ccin
icm
alic
carb
on
ate
mal
on
icm
alei
ch
ydro
xym
alo
nic
sulf
ate
oxa
licfu
mar
icaz
elai
c
syri
ng
icp
hth
alic va
nili
cp
ho
sph
ate
4-h
ydro
xyb
enzo
ic
citr
ictr
icar
bal
lalic
3-h
ydro
xyb
enzo
ic
MOUDI (from IFUSP)MDRO-39 st7 (0.33 – 0.56 um)
2 3 4 5 6 7Minutes
1.01
1.05
1.10
1.15
1.20
1.25
1.30
1.35
uS
gly
ceri
c (2
.261
)g
lyco
lic (
2.32
5)ac
etic
(2.
512)
form
ic (
3.25
4)
MS
A (
3.85
7)
pyr
uvi
c (4
.070
)
oxo
acet
ic (
5.87
9)
chlo
rid
e (6
.279
)
nit
rite
(6.
937)
19.0 19.5 20.0 20.51.35
1.40
1.45
1.50
1.55 uS
citr
ic (
19.5
70)
tric
arb
alla
lic (
19.8
57)
3-h
ydro
xyb
enzo
ic (
20.2
55)
14.5 15.0 15.5 16.0 16.5
1.30
1.40
uS
sulf
ate
(14.
52)
oxa
lic (
14.9
6)
fum
aric
(15
.20)
azel
aic
(15.
36)
15.6
8 ?
??
16.0 16.5 17.0 17.5 18.01.20
1.25
1.30
uS
syri
ng
ic (
16.1
59)
ph
thal
ic (
16.3
05)
van
ilic
(17.
001)
ph
osp
hat
e (1
7.22
5)
4-h
ydro
xyb
enzo
ic (
17.8
20)
13.0 13.5 14.0 14.5 15.0 Minutes
1.2
1.4
1.6
1.8
uS
adip
ic (
13.1
29)
met
hyl
succ
inic
(13
.188
)
glu
tari
c (1
3.27
3)su
ccin
ic (
13.4
30)
mal
ic (
13.4
94)
carb
on
ate
(13.
702)
mal
on
ic (
13.8
61)
mal
eic
(13.
987)
hyd
roxy
mal
on
ic (
14.2
40)
sulf
ate
(14.
523)
oxa
lic (
14.9
63)
fum
aric
(15
.197
)
azel
aic
(15.
363)
SFU (from IFUSP)
Anionic composition
0%
20%
40%
60%
80%
100%Tricarb
Ci
3hyBe
Cl
MSA
Va+4hyBe
Syr+Phth
Fo
Ac
DCA C4-6
Ox
NO3
SO4
Cationic composition
0%
20%
40%
60%
80%
100%Na
Mg
Ca
NH4+
K
SFU (from IFUSP)
Ion concentration
0500
10001500200025003000350040004500
9/12
N
9/14
D
9/14
N
9/15
D
9/17
D
9/17
N
9/18
D
9/18
N
9/19
D
9/19
N
9/23
D
9/23
N
9/24
N
9/25
D
9/25
N
10/3
N
10/4
D
10/4
N
10/5
D
10/1
6 N
10/1
8 D
10/1
8 N
10/2
4 D
10/2
4 N
10/2
6 D
10/2
6 N
10/3
0 N
11/1
D
11/1
N
11/3
D
11/3
N
11/6
N
11/7
D
11/1
0 N
Date
ng
/m3
NO3
SO4
Oxalic
NH4+
K
SFU (from IFUSP)– fine mode
Ion as a percent of total ionic mass
0.00
10.00
20.00
30.00
40.00
50.00
60.00
Date
NO3
SO4
Oxalic
NH4+
K
Ion as a percent of PM
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
Date
NO3
SO4
Oxalic
NH4+
K
NO3 SO4 Oxalic NH4+ K
Mean 4.2 42.6 7.4 12.1 14.1
Median 2.7 41.7 7.1 11.4 14.8
Min 0.0 25.7 1.4 5.9 6.2
Max 15.4 57.1 12.9 19.2 22.4
MOUDI (from IFUSP)
Dry period:
MDRO39 25-Sept-2002 Day
Transition period:
MDRO54 18-20-Oct-2002
An apparent coarse mode that contains Cl, NO3 and Ca