Uptake of Metals from Soil into Vegetables - Dealing with Contaminated Sites: From Theory Towards Practical Application - page 345

Table 8.6 The fraction of airborne cadmium or lead in different crops calculated in experimen-
tal studies that used 'ambient air' (period 1975-1990) and 'background soils' Experiments were
based on isotope labelling studies or comparison between crops grown in filtered air versus that in
ambient air. All studies were performed < 1990, current air concentrations are lower and result in
lower atmospheric contribution (see theoretical analysis in Table 8.7 )

Air metal
concentration
ng m − 3

Soil metal
concentration
mg kg − 1

Percent of
airborne Crop References

Cadmium
Spinach 23 2.1 0.12-0.28 Harrison and

Chirgawi
( 1989 )

n.s. 0.3-0.5 0.3 Dalenberg and

van Driel
( 1990 )

Lettuce 7-21 2.1 0.12-0.28 Harrison and

Chirgawi
( 1989 )

Wheat grain 21 0.3-0.5 0.3 Dalenberg and

van Driel
( 1990 )

21 1.3 0.08 Hovmand et al.

( 1983 )

Barley grain 41-58 1.3 0.08 Hovmand et al.

( 1983 )

Rye grain 17-28 1.3 0.26 Hovmand et al.

( 1983 )

Pea (peas) 0 2.1 0.12-0.28 Harrison and

Chirgawi
( 1989 )

Carrot root 4-8 2.1 0.12-0.28 Harrison and

Chirgawi
( 1989 )

n.s. 0.3-0.5 0.3 Dalenberg and

van Driel
( 1990 )

37-52 1.3 0.08 Hovmand et al.

( 1983 )

Lead
Grass 91-95 25-107 5 Dalenberg and

van Driel
( 1990 )

90-99 132 11-17 Tjell et al.

( 1979 )

Spinach 73 25-32 20 Dalenberg and

van Driel
( 1990 )

85 110 11-41 Harrison and

Chirgawi
( 1989 )

76-91 110 11-41 Harrison and

Chirgawi
( 1989 )