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Phase II Quality of water and sediment of the Schelde, the Leie, the Deule and the Spierre Spatial...
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Phase II Quality of water and sediment of the Schelde, the Leie, the Deule and the Spierre Spatial and Temporal Assessment of high Resolution Depth Profiles Using Novel Sampling Technologies VLIZ
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Transcript of Phase II Quality of water and sediment of the Schelde, the Leie, the Deule and the Spierre Spatial...
Phase II
Quality of water and sediment of the Schelde, the Leie, the Deule and the Spierre
Spatial and Temporal Assessment of high Resolution Depth Profiles Using Novel Sampling Technologies
VLIZ
Sampling expedition December 2003
1
5
2 et 3
8
4
11
10 9
6
7
13
12
14
17
15
18 16
19
Belgique
Location of the sampling sites
point n° location river/canal sediment type
1 Oudenarde near bridge (kleine ring) Schelde mud + worms2 Avelgem bridge (upstream industry zone) Schelde stones (no sediment sampled)3 Avelgem Schelde straat Schelde stones + little mud4 Spiere-Helkjin at Spierre bridge Spierre black mud5 Helkijn at lock Schelde mud6 Antoing Pont d'Antoing Schelde mud + mussels7 Mortagne du Nord after confluence Schelde-Scarpe Schelde mud8 Vieux-Condé km 34 mark Schelde hard clay9 Bruay s/ escaut before lock Schelde mud
10 Lourches highway bridge Schelde mussels-little mud11 Lieu dit "Bassin Rond" yacht club Schelde mud12 Haubourdin bridge Deule mud13 Quesnoy/Deule at lock Deule green clay14 Deulemont bridge Deule mud15 Ploegstert Degremont Leie organic rich matter16 Warneton side arm of Leie Leie mud17 Werwick windmill Leie stones (no sediment sampled)18 Menen Leie mud
Schelde: Helkijn
Schelde: Antoing
Schelde: Mortangne du Nord
Schelde: Vieux Condé
Schelde: Bruay sur Escaut
Samples taken
• Surface water:– Dissolved trace metals– Major ions– Suspended matter concentrations
• Sediments (bulk sediments)– Trace metals– Major ions– Organic matter
Fe
050
100150
200250
300
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Deule LeieSchelde
Mn
020406080
100120140160
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Deule LeieSchelde
Dissolved metals
Dissolved trace metals
Zn
05
101520253035404550
Oud
enar
de
Spi
ere-
Hel
kjin
Ant
oing
Vie
ux-C
ondé
Lour
ches
Hau
bour
din
Deu
lem
ont
W
arne
ton
Men
en
LeieDeuleSchelde
Cu
0
0,5
1
1,5
2
2,5
Oud
enar
de
Spi
ere-
Hel
kjin
Ant
oing
Vie
ux-C
ondé
Lour
ches
Hau
bour
din
Deu
lem
ont
W
arne
ton
Men
en
LeieDeule
Schelde
Dissolved metals
Cd
00,020,040,060,08
0,10,120,140,160,18
0,2
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Deule LeieSchelde
Pb
02
468
1012
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Deule LeieSchelde
Dissolved metals
As
0,000,501,001,502,002,503,003,504,00
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Schelde Deule Leie
Se
0,000,501,001,502,002,503,003,50
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Schelde DeuleLeie
Dissolved trace metals
Co
00,20,40,60,8
11,21,41,61,8
2
Ou
de
na
rde
Ave
lge
m
Sp
iere
-He
lkjin
He
lkijn
An
toin
g
Mo
rta
gn
e d
uN
ord
Vie
ux-
Co
nd
é
Bru
ay
s/ e
sca
ut
Lo
urc
he
s
Ba
ssin
Ro
nd
Ha
ub
ou
rdin
Qu
esn
oy/
De
ule
De
ule
mo
nt
Plo
eg
ste
rt
Wa
rne
ton
We
rwic
k
Me
ne
n
Schelde Deule Leie
Ni
02468
101214
Oud
enar
de
Spi
ere-
Hel
kjin
Ant
oing
Vie
ux-C
ondé
Lour
ches
Hau
bour
din
Deu
lem
ont
W
arne
ton
Men
en
Schelde Deule Leie
Dissolved trace metalsTl
0123456789
Oud
enar
de
Spi
ere-
Hel
kjin
Ant
oing
Vie
ux-C
ondé
Lour
ches
Hau
bour
din
Deu
lem
ont
W
arne
ton
Men
en
Deule LeieSchelde
Mo
0,00
5,00
10,00
15,00
20,00
25,00
Oud
enar
de
Spi
ere-
Hel
kjin
Ant
oing
Vie
ux-C
ondé
Lour
ches
Hau
bour
din
Deu
lem
ont
W
arne
ton
Men
en
LeieDeuleSchelde
Pb
0100200300400500600700800
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Cd
020406080
100
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Sediments
Sediments
Zn
0
500
1000
1500
2000
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Cu
020406080
100120140160
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Sediments
Tl
0102030405060708090
100
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Mo
012345678
Oud
enar
de
Avelg
em
Spier
e-Helkj
in
Helkij
n
Antoin
g
Mor
tagn
e du
Nord
Bruay
s/ e
scau
t
Lour
ches
Bassin
Ron
d
Hau
bour
din
Que
snoy
/Deu
le
Deu
lem
ont
Plo
egst
ert
War
neto
n
Men
en
Choice of future sampling stations for Phase II
• L’Escaut / Schelde : – Helkijn (station 5)
– Bassin Rond (station 11)
• La Deûle / Deule :– Deulemont (station 14)
– Metal Europe (station 19)
• La Lys / Leie :– Warneton (station 16)
– Menen (station 18)
Timing of sampling
• March-April 2004: spring
• June-July 2004: summer
• September-October 2004: autumn
• December-January 2005: winter
Parameters to be analysed in Phase II• First expedition: thorough characterisation of sediments
– Porewaters:• pH• Redox• Alcalinity• DOC• NO3
-, NO2-, SO4
2- , Cl, NH4+, PO4
3-
• Dissolved S • Fe 2+
• Trace metals• Hg speciation• DGT/DET: trace metals, (Hg speciation), ...
– Sediments• POC• Hg/MMHg• Trace metals/ major ions• AVS/CRS• Sequential extractions
