Selected Metals in Various Fractions of Soil and Fungi in a Swedish Forest

Table 2

Bioconcentration ratios (BCR: defined as concentration of the element (mg kg⁻¹ DW) in the specific fraction divided by concentration of the element (mg kg⁻¹ DW) in bulk soil), mean values ± standard deviation.

Element	Rhizosphere	Soil-root interface	Fungal mycelium	Fruit bodies
Co	1.07 ± 0.45	0.62 ± 0.29	1.34 ± 0.76	0.22 ± 0.34
Ni	1.18 ± 0.40	0.49 ± 0.14	0.98 ± 0.38	0.21 ± 0.14
Cu	1.3 ± 0.5	1.2 ± 0.6	1.9 ± 0.8	3.4 ± 2.2
Zn	1.5 ± 0.6	2.2 ± 0.9	2.4 ± 1.4	3.3 ± 2.1
Cd	1.6 ± 0.7	4.0 ± 2.8	5.7 ± 4.6	8.8 ± 9.2
Pb	1.18 ± 0.50	0.56 ± 0.26	0.87 ± 0.60	0.013 ± 0.008