Particulate copper in soils and surface runoff from contaminated sandy soils under citrus
production
Santanu Bakshia, Zhenli L. Hea,*, Willie G. Harrisb
a
Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of
Florida, 2199 S Rock Rd, Fort Pierce, FL 34945.
b
Soil and Water Science Department, Institute of Food and Agricultural Sciences, University of Florida,
Gainesville, FL 32611.
*Corresponding author:
Zhenli He
Indian River Research and Education Center
Institute of Food and Agricultural Sciences, University of Florida
2199 S Rock Rd, Fort Pierce, FL 34945.
Tel: (772) 468-3922 ext109; Fax: (772) 468-5668; Email: zhe@ufl.edu
Electronic Supplementary Materials (ESM):
Journal name: Environmental Science and Pollution Research
Manuscript # ESPR-D-13-00543
Table S1 is provided in the Electronic Supplementary Material (ESM)
Relevant parameters used for chemical speciation with MINEQL+.
Sample
Na (µM)
Cu (µM)
Fe (µM)
Al (µM)
PO4 (µM)
CO3 (µM)
TOC (M)
Ionic
Strength
(µM)
0 ppm
57.2±3.82
46.9±7.71
2.06±0.32
2.96±0.6
9.1±0.37
10.7±0.61
4.33±0.92
0.32±0.01
580±10
200 ppm
53.5±0.45
771±54
15±6.9
0.99±0.023
0
0
3.4±0.22
0.23±0.2
1900±80
600 ppm
0
875±1.1
428±3.2
0
0.064±0.009
0
3.01±0.92
0.21±0.003
2600±92
1000 ppm
0
1400±320
1870±550
0
5.1±0.022
0
4.6±2.8
0.23±0.001
3500±79
pH 6.0
20.6±5.82
87±11
3.81±0.22
4.09±0.89
4.7±0.29
9.93±0.03
3.73±0.92
0.34±0.19
920±30
pH 7.0
35.5±8.75
112±6.9
2.6±0.1
3.25±0.03
0.53±0.097
9.95±0.02
5.77±0.91
0.35±0.01
1020±59
0 ppm
34.1±4.3
39±5.1
2.04±0.59
2.24±0.89
5.4±0.29
25±8.9
5.94±0.92
0.53±0.23
860±20
200 ppm
37.6±2.2
340±59
10.3±0.12
2.21±0.53
9.4±0.55
30.3±8.2
7.2±0.21
0.57±0.09
2500±101
600 ppm
0
1140±521
275±9.8
0.22±0.09
36±3.3
27±1.8
8.2±0.51
0.49±0.1
3200±36
1000 ppm
0
1440±19
485±1.9
0.78±0.02
31.2±3.2
19.4±8.2
4.2±0.9
0.44±0.12
3900±69
pH 6.0
40.4±6.6
81.4±7.6
2.12±0.86
3.56±0.82
13±0.93
13±5.9
1.16±0.98
0.36±0.9
960±16
pH 7.0
29.9±4.9
2400±321
13±0.6
0.34±0.05
47±0.23
0
9.33±0.9
0.44±0.009
1430±17
Alfisol
5750±30.2
3240±80
0.32±0.08
3.22±0.6
3.7±0.97
2.83±0.3
3.9±0.9
1.91±1.1
6800±103
Spodosol
930±57
1990±51
0.47±0.009
1.43±0.92
2.2±0.98
6.3±0.91
2.73±0.81
1.83±0.9
8900±82
Alfisol
Bulk
soil
sample
Spodosol
Surface
runoff
water
sample
Ca (µM)
Captions of Figures for Electronically Submitted Materials:
Fig. S1. The relationship between soil pH (as adjusted with lime) and NH4OAc or M-3 extractable Cu in (A) Alfisol and
(B) Spodosol. (Fig. S1 is provided as Electronic Supplementary Material)
Fig. S2. The relationships of percentages of residual Cu with pH (A) and oxide bound Cu with external Cu loading rate
(B) of particulate matter (PM) from Alfisol and Spodosol; indicates that lime addition can convert Cu from other
fractions to residual fraction due to raised pH. (Fig. S2 is provided as Electronic Supplementary Material).
Fig. S3. The XRD pattern of particulate matter collected from surface runoff water of (A) Alfisol and (B) Spodosol;
indicates the dominance of quartz and calcite, smectite was undetectable. (Fig. S3 is provided as Electronic
Supplementary Material).
Fig. S1 is provided in the Electronic Supplementary Material (ESM)
Fig. S2 is provided in the Electronic Supplementary Material (ESM)
Fig. S3 is provided in the Electronic Supplementary Material (ESM)