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Global anthropogenic inputs of trace metals to soils at the beginning of the 1980s Numbers under the columns are the range of estimates of the inputs in thousands of tonnes per year

Global anthropogenic inputs of trace metals to soils at the beginning of the 1980s Numbers under the columns are the range of estimates of the inputs in thousands of tonnes per year

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Published 2007-11-20
Sources Title (cont.) The percentages shown by the bars are calculated using the maximum value of the range of the total and individual source category estimates. after: Nriagu, J.O. and J.M. Pacyna, 1988. Quantitative assessment of worldwide contamination of
Region global
Edited_by hugo.ahlenius@grida.no
Cartographer / Designer Graphical production: Philippe Rekacewicz and Emmanuelle Bournay (GRID-Arendal)