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Jickells et al. 1984
Jickells, T.D., Knap, A.H. and Church, T.M. (1984). Trace metals in Bermuda rainwater. Journal of Geophysical Research 89: doi: 10.1029/JD089iD01p01423. issn: 0148-0227.

The concentration of Cd, Cu, Fe, Mn, Ni, Pb, and Zn have been measured in Bermuda rainwater. Factor analysis indicates that Fe, Mn, and Pb have similar to acidic components derived from North America. The other metals all behave simiarly but differently to the acides. Sea salt, even after allowances for fractionation, apparently contributes minor amounts of Cu, Pb, and Zn and uncertain amounts of Fe, Mn, and Cd to Atlantic Ocean precipitation. Wash out ratios, calculated from this data along with earlier measurements of atmospheric trace metal concentration on Bermuda, are of the same order as those reported from other remote ocean areas. The wet depositional fluxes of Cu, Ni, Pb, and Zn to the western Atlantic Ocean are significant compared to measured oceanic flux rates. However, the wet depositional fluxes of Fe and Mn to this area are relatively small, suggesting additional inputs, while an excess wet depositional flux of Cd suggests large-scale atmospheric recycling of this element.

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Journal of Geophysical Research
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