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Sediment and biota

Investigating sediment and biota contamination

Due to enactment of international conventions and national directives, many environmental authorities have developed specific dredged material guidelines and/or specific legislation for sediments. Specific guidelines exist for decontamination, re-use or disposal of sediment.

Assessing levels of contaminants in biota provides complementary information to the testing of sediments in isolation. The levels found in biota are the bioavailable fraction as certain contaminants travel through the food chain and can affect humans via bioaccumulation and biomagnification in the ecosystem.

ALS has an advanced range of capabilities to support sediment and biota programs for the assessment of contamination, to fulfil the most stringent regulatory requirements.

Innovative Testing. Quality Results.

ALS accredited laboratories continuously verify the quality of analytical data, both internally and externally, with the aim of systematically covering all aspects of the analytical process from sample receipt to test report publication. Our laboratories work in accordance with the requirements of ISO/IEC 17025:2017 requirements.

Our services for sediment and biota include but are not limited to:

  • Semi-volatile and volatile organic compounds
  • Petroleum Hydrocarbons
  • Octyl phenols, nonylphenols and their ethoxylates
  • PFAS (Per- and poly-fluoroalkyl substances)
  • Pesticides and pharma compounds
  • Dioxins and Furans
  • Polybrominated diphenyl ethers
  • Metals and metals speciation (including organotins)
  • Ecotoxicological tests on aquatic organisms (plants and animals)
  • Microtox (Vibrio fischeri)
  • Radiology
  • Full grain size

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