C. Migon et Jl. Caccia, ESTIMATION OF ANTHROPOGENIC AND NATURAL HEAVY-METALS IN THE NORTHWESTERN MEDITERRANEAN RAINWATER AND TOTAL ATMOSPHERIC DEPOSITION, Chemosphere, 27(12), 1993, pp. 2389-2396
As already done for aerosols, natural and anthropogenic Pb, Cd, Cu, an
d Zn concentrations in rainwater have been separated by a statistical
numerical method. The natural part is found to strongly decrease from
aerosol to rainwater: from 10-20% to 1% for Pb, Cu and Zn, and from 0.
9% to 0.6% for Cd. The mean natural and anthropogenic levels in total
atmospheric deposition is estimated.