Table 4. Zn(II)-natural water complexation data.

Table 4. Zn(II)-natural water complexation data.
1
System 1
System
details 2
Ligand
concentration
(nmol dm -3 )
log K
(dm 3 mol -1 )
pH
DOC
(mg
dm -3 )
TOC
(mg
dm -3 )
[Zn] diss
(nmol
dm -3 )
[Zn] free
3
(nmol
dm -3 )
[Zn] total
(nmol
dm -3 )
Experimental
technique 4
Data treatment
method 5
Reference
NW Pacific
S. Atlantic, S=36
Gulf of Thailand:
Station 1, S=8.7
Station 2, S= 1.8
Station 3, S= 29.2
Station 4, S=29.1
Station 5, S=29.5
Station 6, S=30.6
Station 7, S= 31.2
R. Mersey Est., GB:
Eastham, S=14.2
Otterspool, S=14.2
West Bank, S=5.3
Fiddlers Ferry,
S=6.4
R. Dee Est., GB,
S=22.7
R. Ribble Est., GB:
I (S=13.9)
II (S=25.0)
Apr.-May
80
surface
interstitial
interstitial
polluted
estuarine
sites
surface
surface
5; 8 10.7; 9.3 8.1 26 CLE (edta, 10 -8
10 -4 M) -
XAD-2
30
530
16
1220
1020
800
660
440
2000
340
200
50
6
42
18
7.4
8.18
9.03
7.57
7.55
7.67
7.71
7.62
7.72
8.5
8.77
9.30
8.5
8.9
8.7
5
66
82
86
24
125
58
19
68
371
642
106
900
320
110
1.8
1.0
39.3
1.88
6.3
3.67
1.75
0.96
0.762
33.8
252
32
446
152
46
(0.45 µm)
MnO 2
Atlantic water:
not filtered,
frozen;
Estuarine
surface water,
filtered
Interstitial
waters, 0.45 µm
R. Dee and R.
Ribble, 0.45 µm
Irish Sea, S=32 26; 62 8.36; 7.52 8.2 CSV-apdc (4.1 x
10 -5 M)
Tamar Est., GB:
S=0
S=0.85
S=3.2
53.7
68.3
87.8
9.10
9.14
8.88
3.4
3.8
3.8
(0.45 µm) frozen
CSV-apdc
(concentration
not stated)
(0.45 µm) frozen
linearisation
method
K corrected
(α inorg value not
reported)
Ruić-van den
Berg
linearisation
K corrected
(α inorg value not
reported)
Ruić-van den
Berg
linearisation
K corrected
(α inorg value not
reported)
no details given
K probably
corrected but not
mentioned
Hirose et al.
1982
van den
Berg and
Dharmvanij
1984; van
den Berg et
al. 1984
van den
Berg 1985
van den
Berg et al.
1986

2
S=5.9
S=6.65
S=14.1
S=15.1
S=24.8
S=29.8
41.5
39.0
97.6
146.3
168.3
46.3
8.14
8.86
8.24
8.76
9.00
8.83
3.1
3.1
3.2
2.6
1.9
0.9
Scheldt Est., NL:
station 1
station 2
station 3
station 5
station 6
station 7
station 8
station 9
station 11
station 12
0.5 m
112
135
122
220
75
70
64
22
127
136
9.8
9.6
10.6
9.6
10.6
9.2
9.1
8.6
8.9
9.6
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
119
141
153
233
101
70
51
24
103
144
CSV-apdc (4.5 x
2.51 c
10 -5 M)
5.01 c
15.85 c
(0.45 µm) frozen
10 c
12.59 c
3.98 c
1.995 c
5.01 c
3.98 c
6.31 c
Ruić-van den
Berg
linearisation
K corrected
(α inorg = 2)
van den
Berg et al.
1987
Central N. Pacific:
22 m
50 m
90 m
100 m
125 m
150 m
175 m
200 m
300 m
400 m
depth of
mixed layer,
25 m; base
of euphotic
zone and
nutrient
depleted
layer, 150 m
Jul. 83
0.98
1.34
0.94
1.37
1.12
0.92
1.31
1.07
1.05
1.3
10.7
10.8
10.6
10.7
10.5
10.6
10.6
10.5
10.4
10.4
0.3
0.15
0.35
0.17
0.20
0.15
0.20
0.23
0.65
1.62
ASV (TMF-
RGCDE)
(0.3 µm)
Ruić-van den
Berg
linearisation
K not corrected
(α inorg =2.1,
Turner et al.
1981, van den
Berg 1985)
Bruland
1989
NE Pacific:
60 m
150 m
Aug. 87
2.14 CSV
2.22 ASV (0.3 µm)
1.60 CSV
1.76 ASV
at both depths:
10.3 CSV
11.2 ASV 0.12 CSV-apdc (6.7 x
10 -5 M) + ASV
(TMF-RGCDE)
Ruić-van den
Berg
linearisation
K corrected
(α inorg = 2.2,
Turner et al.
1981)
Donat and
Bruland
1990
Slope water off US
mid-Atlantic Bight:
slope station 4:
40 m
60 m
slope station 7:
200 m
4
6; 44
6; 32
6; 32 filt 9.43
9.22; 7.43
9.35; 7.73
9.35; 7.73 filt 7.87 1.87
3.14
4.03
ASV (TMF-
RGCDE)
samples are
unfiltered except
when stated
(0.40 µm)
Ruić-van den
Berg
linearisation
K corrected
(α inorg = 2.0)
Muller and
Kester 1991

3
slope station 8:
150 m
slope station 9:
11 m
Narragansett Bay, US
0.6 m depth,
200m
offshore
44
46 filt
28
49
51 filt 9.35
8.16 filt
8.30
7.85
7.71 filt 6.53
6.12
Delaware Bay, US,
S=30.5
5 m
Jul. 92
15.25 ≥10.9 8.2 3.47 ASV (TMF-
RGCDE, SW)
(0.4 µm)
Ruić-van den
Berg
linearisation
K not corrected
Lewis et al.
1995
L. Greifen, CH:
26/1/93:
5 m
30 m
5/4/93:
5 m
30 m
26/7/93:
3 m
6 m
8 m
30 m
13/10/93:
2.5 m
11 m
eutrophic,
high
concentratio
n of
nutrients
and
pollutants
7.7
16.0
15.7
20.3
19.8
4.3
6.6
30.0
13.8
12.3
8.8
7.9
9.6
9.1
9.0
8.5
8.0
9.0
8.8
7.8
8.0 3-4
19.9
27.5
21.4
29.1
30.6
39.8
39.8
39.8
22.9
36.8
CLE (edta)
ASV (HMDE)
0.6 c
2.8 c
(0.45 µm)
0.3 c
0.4 c
1.2 c
1.8 c
2.8 c
2.0 c
0.5 c
2.3 c
discrete 2 ligand
model
(FITEQL)
K corrected
(α inorg value not
reported)
Xue et al.
1995
Chesapeake Bay 8-200 9.5-10.0 4-20 0.01-0.3 CSV + ASV Henry and
Donat 1996
Narragansett Bay,
US:
Upper, S=24.9
Middle, S=28.6
Lower, S=30.3
1 m
polluted
bloom
less polluted
Jun. 94
48.2
38.4
10.6
≥ 9
9.4
9.0
7.8
7.8
7.9
71.5
23.7
16.3
ASV (TMF-
RGCDE)
13.3 c
0.3 c
(0.2 µm)
4.0 c
Langmuir,
Ruić-van den
Berg, and
Scatchard
linearisations
K corrected
(α inorg = 2,
Turner et al.
1981, Byrne et
al. 1988)
Kozelka and
Bruland
1998
1
Abbreviations used: R. = River; L. = lake; Est. = Estuary; S = salinity on the Practical Salinity Scale; international country codes follow the ISO 3166 convention.

2
Specific sampling dates are given as dd/mm/yy, otherwise the month and year are given if reported. Values in m are sampling depths.
4
3
Calculated values denoted by c ; measured values by m .
4 Filter pore size given in parentheses. A - between techniques indicates that the methods were used sequentially on the same sample; a + indicates separate determinations by each method. For
ASV, the electrode type is given in parentheses; SW = square wave. For CLE the competing ligand and the concentration range employed is given in parentheses. M = mol dm -3 .
5 K correction refers to whether the presence of inorganic ligands was taken into account. α inorg is the inorganic side reaction coefficient = [M′]/[M n+ ], where [M′] is the concentration of inorganic
complexes of the metal, M. When reported, the value of α inorg used in the data analysis is given in parentheses.

References
5
van den Berg, C.M.G. and S. Dharmvanij, 1984. Organic complexation of zinc in estuarine interstitial and surface water samples. Limnol. Oceanogr. 29: 1025-
1036.
van den Berg, C.M.G., P.M. Buckley and S. Dharmvanij, 1984. Determination of ligand concentrations and conditional stability constants in seawater. Comparison
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Complexation of Trace Metals in Natural Waters, pp. 213-216.
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Henry, C.W. and J.R. Donat, 1996. Zinc complexation and speciation in the Chesapeake Bay. Eos Trans. Am. Geophys. U. 77 (abstract OS72).

Hirose, K., Y. Dokiya, Y. and Y. Sugimura, 1982. Determination of conditional stability constants of organic copper and zinc complexes dissolved in seawater
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6
Kozelka, P.B. and K.W. Bruland, 1998. Chemical speciation of dissolved Cu, Zn, Cd, Pb in Narragansett Bay, Rhode Island. Mar. Chem. 60: 267-282.
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Electroanal. 7: 166-177.
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