1.1
0.9
0.8
0.7
0.6
0.5
Normalized concentration
0.4
0.3
0.2
0.1
0
1
(a)
Würth 1 Würth 2
Resp 1
R esp Rh GM 1
GM 2
Peerless
AI
Ca
Fe
Mn
Co
Cr
1.1
(b)
Würth 1 Würth 2
Resp 1
R esp Rh GM 1
GM 2
Peerless
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Normalized concentration
C
O
F
P
S
Si
92
Permeable Reactive Barrier
FIGURE 5.4
Normalized average trace element surface concentrations concerning different ZVI brands
(GM = Gotthart-Maier), according to EDX analyses. Great variations regarding kinds and
amounts of trace elements are observed.
0.9
0.8
0.7
0.6
0.5
Normalized concentration
0.4
0.3
0.2
0.1
0
1
(a)
Würth 1 Würth 2
Resp 1
R esp Rh GM 1
GM 2
Peerless
AI
Ca
Fe
Mn
Co
Cr
1.1
(b)
Würth 1 Würth 2
Resp 1
R esp Rh GM 1
GM 2
Peerless
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Normalized concentration
C
O
F
P
S
Si
92
Permeable Reactive Barrier
FIGURE 5.4
Normalized average trace element surface concentrations concerning different ZVI brands
(GM = Gotthart-Maier), according to EDX analyses. Great variations regarding kinds and
amounts of trace elements are observed.