Human Health Risk Assessment - Dealing with Contaminated Sites: From Theory Towards Practical Application - page 254

• testing the probability of consumption from contaminated sites (tier 0; this tier

is called 'Tier 0' instead of 'Tier 1', since no Risk Assessment is performed; the
only argument is whether contaminant uptake by plants is possible or likely, for
example, given the location of the site);

• comparing measured soil concentrations with conservative 'critical soil concen-

trations' (Tier 1);

• site-specific calculation of the vegetable concentration on the basis of soil

properties (Tier 2);

• measurement of the vegetable concentration following a specific protocol

(Tier 3).

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