Table 2.11
Extraction of major metals from sediments of various organic carbon contents with four extraction methods (from [34])
I~
All results are in
mg kg- 1
'~
<
Sample Organic
Silicon %
Sample
Sample location" Manganese
Iron
Aluminium
'" ....
carbon %
description
.,
::s
b
d
b
d
b
d
p..
a
c
a
c
a
c
en
::r
0.15
31.3
Orange sand Lake Superior
99
120
120
227
990
1400 1400 11 700
970 1400
1700 20300
'"
9
2
0.43
24.2
Clay
Rideau River
140
220
300
655 1800
3 770 10940 35000
660 1800
6400 54700
en
3
0.90
28.0
Sand
Calgary
140
160
160
253 1980
2580 4170 14400
140
240
1000 41500
'"
4
2.25
22.5
Silt
Rideau River
320
380
380
718 3 360
4160 8 790 30900
790 1500
4800 45100
§5
2.47
19.0
Clay
Rideau River
900 1010 1070 1100
5780
7740 12900
36300
340
930
4000 49900
'"
a
6
2.81
20.6
Silt
Lake Ontario
550
620
620
787 4 750
6 780 12520 34700
400
970
4000 49700
CI>
7
2.95
20.3
Silt and fine Rideau River
240
300
280
633 3190
3740 8970 30800
620 1100
5500 48700
sand
8
3.15
22.8
Silt
Ottawa river
160
200
220
600 3780
4540 8770 27300 1400 2600
5400 39500
9
3.35
20.3
Dark brown
clay
Lake Huron
1090 1210 1170 1340 8300 10500 17500 38800 1400 2700
7600 43400
10
4.10
20.8
Grey clay
Cardigan
Bay
100
120
140
417
6750
7110
9960 27500
7500 9700 15000 30300
11
4.85
19.9
Silt and clay Rideau River
400
440
440 1070 3140
3570 7710 24600
650 1200
5100 48500
12
10.75
20.0
Silt and clay Rideau River
400
440
480
- 3380 3770 8120
1100 1900
6500
13
12.30
20.3
Silt and clay Rideau River
380
440
420
533 4180
3790 6160 22300 1200 1500
4000 38800
" All sample locations ar in Canada.
a = 0.05
N ethylenediaminetetraacetic acid (pH 4.8);
b = 1
N hydroxylammonium chloride
+ 25
%
acetic acid; c = 0.5
N hydrochloric acid; d =
HF-HN0
3 -
HCI0
4
(total metal)