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This paper examines the amount of bioavailable Zn, Cd, and Pb in dust samples derived from a zinclead smelter by means of single-stage extraction analysis. The efficiency of three extractants (NH4OAc, CaCl2, and H2O) was compared with respect to their efficiency toward bioaccessible (exchangeable) metals fraction. The highest amount of metals was NH4OAc extractable, indicating that the acetate-soluble...
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