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Record number 302361
Title Methods to calculate critical loads for heavy metals and persistent organic pollutants
Author(s) Vries, W. de; Bakker, D.J.
Source In: Calculation and mapping of critical thresholds in Europe: status report 1995 / Posch, M., de Smet, P.A.M., Hettelingh, J.P., Downing, R.J., - p. 77 - 81.
Department(s) Winand Staring Centre for Integrated Land, Soil and Water Research
Publication type Chapter in scientific book
Publication year 1995
Abstract Basic principles of methods for calculating critical loads of the heavy metals lead, cadmium, copper, zinc, nickel, chromium and mercury and persistent organic pollutants (POPs) for soils and surface waters are described briefly. The methods are basedon the implicit assumption that environmental quality criteria do exist for the metals and POPs. The computation models described are based on the concept of equilibrium partitioning between dissolved and adsorbed phases in homogeneously mixed soil, surface water and sediment compartments in a steady-state situation. The various sources of uncertainty inherent in the various assumptions are discussed in detail.
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