Ecotoxicological evaluation of soil quality criteria

Ecotoxicological evaluation of soil quality criteria,10.1016/0147-6513(89)90018-3,Ecotoxicology and Environmental Safety,N. M. van Straalen,C. A. Denn

Ecotoxicological evaluation of soil quality criteria   (Citations: 174)
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To implement the Soil Protection Act of 1986, the Dutch Ministry of Housing, Physical Planning, and Environment has recently proposed a list of soil quality reference values. These values are, as yet, insufficiently based on ecotoxicological evidence. In this paper, a three-step procedure of risk assessment for soil contaminants is proposed. Arguing from experimental results concerning no observed effect concentrations for a set of selected soil organisms, the method aims at protecting a certain fraction of soil life, taking factors such as soil organic matter and clay content into account. When applied to cadmium, a concentration protecting 95% of soil invertebrates is estimated as 0.16 micrograms/g for a standard soil. The value of 0.8 micrograms/g, as proposed by the Dutch authorities, may, given the present variation and uncertainty of toxicity data, protect about 85% of the soil invertebrate fauna. It is concluded that even low levels of cadmium in soil may endanger the functioning of some sensitive soil animal species.21 references.
Journal: Ecotoxicology and Environmental Safety - ECOTOXICOL ENVIRON SAFETY , vol. 18, no. 3, pp. 241-251, 1989
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