XP T90-721

Water quality - In situ gammarus caging for measuring bioaccumulation of chemical substances

Le présent document décrit une méthode permettant de collecter des organismes vivants (gammares) encagés et exposés in situ sur une station de mesure dans le but de mesurer la bioaccumulation de substances chimiques, c'est-à-dire les concentrations en métaux et/ou composés organiques accumulés dans les organismes. Il décrit les opérations de sélection et de conditionnement de gammares, d'encagement in situ des organismes d'essai pendant une durée de 21 jours, et enfin de tri et de conditionnement des organismes survivants après exposition. La méthode est applicable dans les eaux de surface continentales : rivières, plans d'eau, fleuves, canaux et étangs.

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