electronic supplementary material

soils, sec 3 • remediation and management of contaminated or degraded lands • research article

Distribution of As, Cd, Pb and Zn in redox features of mine-waste impacted wetland soils

Daniel G. Strawn • Patrick J. Hickey • Paul A. McDaniel • Leslie L. Baker

Received: 30 January 2012 / Accepted: 21 May 2012

© Springer-Verlag 2012

Responsible editor: Jianming Xu

D. G. Strawn () • P. J. Hickey • P. A. McDaniel • L. L. Baker

Soil and Land Resources Division, University of Idaho, P.O. Box 442339, Moscow, ID 83844-2339, USA

e-mail:

() Corresponding author:

Tel. 208-885-2713

e-mail:

Supplementary Fig.1 Comparison of contaminant profiles from Black Rock Slough soils sampled at 15-cm and 5-cm intervals. 5-cm interval data are from site near midslope(1) and midslope(2) data reported in Baker et al. (2011)

Supplementary Table 1 Average elemental concentrations for 1-2 mm sized aggregates hand-picked from all depths and sites

Concentrations (mg kg-1)
Aggregate Type / As / Cd / Fe / Mn / P / Pb / Zn
Charcoal / 102
(9.1)† / 50.8 (0.8) / 97,300
(360) / 9,760
(34) / 3,780
(230) / 13,700
(8.0) / 1,840
(78)
Root channels / 182
(4.8) / 26.1 (0.6) / 138,000
(2,000) / 3,230
(49) / 2,130
(27) / 9,240
(150) / 1,060
(18)
Gray / 64.0
(2.0) / 16.2 (0.1) / 43,200
(300) / 3,880
(150) / 1,250
(32) / 6,830
(230) / 1,350
(11)
Fe/Mn-cem. sand / 37.6
(8.1) / 43.9 (0.7) / 39,400
(900) / 29,500
(680) / 1,250
(42) / 16,800
(980) / 1,130
(25)
Fe/Mn / 59.2
(6.8) / 38.2 (0.5) / 70,600
(4,000) / 34,600
(7000) / 1,372
(25) / 26,800
(4,400) / 1,430
(9.2)
Fe / 148.4
(7.5) / 23.8 (0.5) / 114,000
(4,300) / 5,280
(230) / 780
(43) / 9,710
(490) / 1,950
(66)
Pre-mining CDA
sediments‡ / 5.93
(1.6) / 0.21
(0.1) / 20900
(1300) / 141
(24) / NA / 32.7
(14) / 70.7
(20)

†Values in parentheses are standard deviation

‡Average of six depths from two cores mapped as “pre-mining era sediments” in Box et al. (2001)

Supplemental Table 2 Average elemental concentrations for soil masses and bulk soil from two depths at a site between midslope(1) and upland sites.

Concentrations (mg/kg)
Sample Type / As / Cd / Fe / Mn / P / Pb / Zn
Red masses (0-10 cm) / 156 b† / 9.93 aA / 103,000 a / 2,010 aA / 665 ab / 7,580 A / 2,380 a
Red masses (10-20 cm) / 118 ab / 4.50 aB / 102,000 a / 1,790 aB / 598 b / 8,910 / 1,900ab
Gray masses (0-10 cm) / 82.4 aA / 5.28 aA / 42,600 / 1,650 aA / 946 a / 5,050 / 1,520bA
Gray masses (10-20 cm) / 69.3 a / 7.40 aB / 2,910 / 1,590 aB / 615 b / 3,220 B / 814bB
Bulk Soil (0-10 cm) / 68.3A / 8.30 A / 60,300 / 2,810 A / 913 / 6,200 A / 1,400 A
Bulk Soil (10-20 cm) / 22.8 / 3.25 B / 36,200 / 1,090 B / 898 / 4,420 B / 740 B

†Within columns values followed by the same letter(s) are not significantly different at P=0.05. Lower case letters indicate test of means between subsamples. Upper case letters indicate mean comparison between subsample and bulk soil concentration