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Journal Title
Title of Journal: Water Air Soil Pollut
Abbravation: Water, Air, & Soil Pollution
Publisher
Springer Netherlands
DOI
10.1016/0006-3223(96)00268-5
ISSN
1573-2932
The elemental composition and bioaccessibility of trace metals have been determined in a variety of geosolids soils road dusts and house dusts from an arid coastal region Dhahran Saudi Arabia Concentrations of many elements reflected those of the local geology ascertained by analysis of desert sand Several trace metals eg Cu Sb Zn Pb Tl and Sn were moderately enriched in both road and house dusts reflecting external and internal household anthropogenic sources For a given trace metal bioaccessibilities assessed using a physiologically based extraction test were broadly similar across the range of geosolids Median values for a simulated gastric phase ranged from less than 10 Ba Cu Cr Ni and V to more than 50 As Cd Sb Sn and Tl and for a subsequently simulated intestinal phase from less than 15 Ba Cr Cu Ni V and Zn to more than 50 As Cd Sb Tl and U Results suggest that the levels and bioaccessibilities of trace metals in dusts from arid environments are controlled by the dilution of anthropogenic particulates by variable but significant proportions of fine baseline sand