Pollution research on dated sediment cores from Lake Constance, supplement to: Müller, German (1977): Schadstoff-Untersuchungen an datierten Sedimentkernen aus dem Bodensee. II. Historische Entwicklung von Schwermetallen - Beziehung zur Entwicklung polycyclischer aromatischer Kohlenwasserstoffe. Naturforschung, 32c, 913-919

German Müller
The vertical distribution of eight heavy metals (Hg, Cu, Zn, Cr, CO, Ni, Pb, Cd) and nitrogen and phosphorus in dated sediments of four sedimentary profiles from the central part of Lake Constance was examined. From 1900 to about 1960-1970, a general increase of all heavy metals was observcd. After this time, the concentrations of most of the metals decreased. As compared with pre-1900 "natural" metal concentrations, Cd and Pb have been enriched the strongest...
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