Ranges of B, Cd, Cr, Cu, Fe, Pb, Sr, Tl, and Zn Concentrations and Isotope Ratios in Environmental Matrices from an Urban Area
Table 6
Chromium concentrations and isotopic composition in environmental samples from Luleå.
Soil profiles
Concentration, µg·g−1 DW
δ53Cr, ‰
Fractions
F1
F2
F3
F4
F5
F6
Total
F1
F2
F3
F4
F5
F6
Total
City (n = 2)
0–15 cm
0.09
0.18
0.14
7.5
7.7
9.5
25
−0.16
−0.11
0.38
0.04
0.04
0.11
0.04
16–30 cm
0.09
0.10
0.12
4.3
11
11
27
−0.13
−0.12
0.37
0.02
0.03
0.09
0.03
31–45 cm
0.09
0.03
0.06
2.8
11
8.8
23
0.05
0.10
0.21
0.04
0.02
0.11
0.04
46–60 cm
0.04
0.04
0.05
1.7
15
9.2
26
0.01
0.12
0.28
0.11
0.01
0.12
0.04
Suburba(n = 4)
0–15 cm
0.08
0.13
0.13
2.4
8.5
11
22
0.22
—
—
0.11
—
—
0.11
16–30 cm
0.09
0.06
0.13
2.0
5.8
10
18
—
—
—
—
—
—
—
31–45 cm
0.08
0.04
0.14
2.0
8.6
10
21
—
—
—
—
—
—
—
46–60 cm
0.10
0.02
0.16
1.9
7.8
9.0
19
0.16
—
—
0.12
—
—
0.12
Concentration, µg·g−1 DW (µg·L−1 for waters)
δ53Cr, ‰
Mean
Median
σ
Min.
Max.
Mean
Median
σ
Min.
Max.
Range
Top soils
21
18
16
4
68
0.10
0.07
0.143
−0.16
0.41
0.57
Lysimetric waters
4.3
4.4
0.4
3.9
5.1
0.26
0.26
0.01
0.25
0.27
0.02
Mushroom
0.12
0.10
0.12
0.01
0.63
NA
NA
NA
NA
NA
NA
Litter
1.8
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Wood ash
70
NA
NA
NA
NA
0.12
NA
NA
NA
NA
NA
Needles
0.23
0.21
0.19
0.05
0.97
NA
NA
NA
NA
NA
NA
Leaves
0.26
0.22
0.15
0.10
0.95
NA
NA
NA
NA
NA
NA
Lichens
2.2
1.6
1.1
1.5
4.2
0.36
0.36
0.11
0.21
0.57
0.36
aValues reported as empty entries are due to pooling of several fractions. The isotopic values reported for the outmost top and bottom layers for F1 and F4 correspond to averaged values of respectively soil profiles F1+F2+F3 and F4+F5+F6 fractions.
