ISO/TS 21738:2026

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Water quality - Active biomonitoring method with in situ caged benthic amphipods

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Water quality - Active biomonitoring method with in situ caged benthic amphipods

PUBLISH DATE 2026

This document describes a method to expose test organisms (amphipods), directly on the field by a caging methodology, with the aim to measure bioaccumulation of chemical substances on a monitoring station, i.e. either the concentrations of metals or organic compounds, or both, accumulated in the organisms.

This document also describes the specifications for:

  • test organism selection and conditioning,
  • in situ exposure,
  • and finally sorting and conditioning of the surviving organisms after exposure.

This document does not apply to organism preparation methods (freeze-drying, extraction, mineralization) and quantification of the chemical substances.

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