Abstract
THE aerial fallout of heavy metals downwind of the Avonmouth industrial complex has been well documented. Analyses of vegetation1 and moss bags2 show decreasing levels of lead, cadmium and zinc with increasing distance from the complex. The precise nature of the heavy metal fallout, however, has been neglected although the chemical and physical state of a metal determine to a large extent its mobility in the soil and hence its availability to plants and animals.
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References
Burkitt, A., Lester, P., and Nickless, G., Nature, 238, 327 (1972).
Little, P., and Martin, M. H., Environ. Pollut., 6, (1974).
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ALLEN, G., NICKLESS, G., WIBBERLEY, B. et al. Heavy metal particle characterisation. Nature 252, 571–572 (1974). https://doi.org/10.1038/252571a0
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DOI: https://doi.org/10.1038/252571a0
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