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Cadmium in freshwater ecosystems

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  • Cadmium —a complex environmental problem
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  1. Department of Physical and Natural Sciences, Commission of the European Communities Joint Research Centre, Ispra Establishment, I-21020, Ispra, Va, Italy

    O. Ravera

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Editorial remarks. Since World War 11 we have witnessed a marked increase in the industrial and agricultural use of cadmium, and the question as to what eventually becomes of this element once it is released into the ‘mainstreams’ of our civilization is being posed with increasing urgency. Man has seen to it that the amount of cadmium present in our immediate environment is rising significantly above all natural levels. Waste incinerators and furnaces are the primary sources of airborne cadmium pollutants. Phosphate-containing fertilizers are contaminating agro-ecosystems with cadmium. Other cadmium sources are refuse dumps and sewage sludges. High concentrations of cadmium are found in our waters and are collecting in sedimentation. One measuring station in the Lower Rhine area has reported that 200–500 tons of cadmium are carried by the river yearly. One percent of this amount is of natural origin; civilization supplies the remaining 99%. Given the complexity of the problem, it is clear that only an interdisciplinary, pragmatic approach can — and must begin to — define the dangers which the proliferation of cadmium pollution holds for man and his environment. — We wish to thank our coordinator, Prof. 0. Ravera (of the Euratom, Ispra), for guiding to fruition this review which, we hope, will set forth part of the scientific foundation needed for developing effective environmental protection policies. H. M.

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Ravera, O. Cadmium in freshwater ecosystems. Experientia 40, 1–14 (1984). https://doi.org/10.1007/BF01959096

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