AquaTech Testing & Environmental Laboratory
Ecotoxicological testing and risk assessment
DHI has more than 30 years of experience in risk analysis and hazard assessment in relation to the freshwater and marine aquatic environment
Ecotoxicological testing and risk assessment
DHI has more than 30 years of experience in risk analysis and hazard assessment in relation to the freshwater and marine aquatic environment
Ecotoxicological testing and risk assessment
DHI has more than 30 years of experience in risk analysis and hazard assessment in relation to the freshwater and marine aquatic environment

At DHI we have extensive expertise in ecotoxicological testing of:

  • Chemicals and chemical products
  • Waste waters (e.g., from industry; sewage treatment plants; mining industry)
  • Contaminated sediments
  • Produced water from the offshore oil and gas industry, mining etc.
  • Whole effluent toxicity of Ballast water management systems

We can provide tailormade and complete solutions including risk assessment, hydrological modeling, and literature studies.

So, whether you need a single test or a comprehensive suite of solutions to gain information on the ecotoxicity of a substance, we can help.

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Quality Certifications and Accreditation

Our laboratory performs ecotoxicological tests accredited by DANAK, the Danish Accreditation Fund and, furthermore, our laboratory at DHI is authorized to carry out studies in compliance with the OECD Principles of Good Laboratory Practice (GLP).

Accredited tests according to ISO 17025

Freshwater ecotoxicological testing

 Algae:

  • Growth inhibition test (Raphidocelis subcapitata ): OECD 201 / ISO 8692
 Crustacean:
  • Acute toxicity test (Daphnia magna): OECD 202 / ISO 6341
  • Reproduction test (Daphnia magna): OECD 211 / ISO 10706
  • Chronic toxicity test (Ceriodaphnia dubia): ISO 20665
 Fish:
  • Acute toxicity test: OECD 203 / ISO 7346. Zebrafish (Danio rerio); Medaka (Oryzias latipes)
  • Embryo Toxicity (FET) test: OECD 236 Zebrafish (Danio rerio); Medaka (Oryzias latipes)
  • Juvenile growth test: OECD 215 Zebrafish (Danio rerio); Medaka (Oryzias latipes)
  • Short-term Toxicity Test on Embryo and Sac-fry Stages, OECD 212, Zebrafish (Danio rerio); Medaka (Oryzias latipes)
  • Early life stage toxicity test: OECD 210 Zebrafish (Danio rerio); Medaka (Oryzias latipes)

 Endocrine effects on fish (Zebrafish (Danio rerio); Medaka (Oryzias latipes)):

  • Fish Short-Term Reproduction Test: OECD 229
  • Fish Screening Assay: OECD 230
  • Fish Sexual Development Test: OECD 234

Marine ecotoxicological testing

Microorganisms:

  • Microtox toxicity test with Vibrio fischeri (both sediment and aquatic samples)

Algae:

  • Growth inhibition test (Skeletonema sp.): ISO 10253

Crustacean:

  • Acute toxicity test (Acartia tonsa): ISO 14669
  • Early life stage toxicity test (Acartia tonsa): ISO 16778

Fish:

  • Fish, Embryo Toxicity (FET) test: OECD 236
  • Fish, Acute toxicity test: OECD 203 / ISO 7346 / OSPAR 2006
  • Fish, Short-term Toxicity Test on Embryo and Sac-fry Stages: OECD 212
  • Fish, Early-life Stage Toxicity Test, OECD 210

Bivalves:

  • Embryo-larval development test with Japanese oyster (Crassostrea gigas), ISO 17244

Bioassays relevant for contaminated sediments, dredging materials in ports

Extraction of porewater from the sediments e.g., according to ‘Risk assessment of contaminated sediments’ Norwegian Environment Agency Guidance Note M-1132; 2018.

Amphipod:

  • Sediment-reworker, acute toxicity, Corophium sp., OSPAR 2006/ ISO 16712
Microorganisms:
  • Microtox Solid phase toxicity with Vibrio fischeri, ISO 11348
Algae:
  • Alga growth inhibition test (Skeletonema sp.), ISO 10253
Crustacean:
  • Acute lethal toxicity to marine copepods (Acartia tonsa), ISO 14669Early life stage test with Acartia tonsa, ISO 16778
Fish:
  • Fish, Short-term Toxicity Test on Embryo and Sac-fry Stages, OECD 212

Produced water 

OSPAR requires three marine species to be used for bioassays to test the whole effluent toxicity of produced water. At DHI we use the following standard tests:

Microorganisms

  • Microtox (Vibrio fisheri): ISO 11348

Algae

  • Algae (Skeletonema sp.): ISO 10253

Crustacean

  • Crustacean (Acartia tonsa): ISO 14669

Biodegradability tests

  • Ready biodegradability – Closed bottle test: OECD 301D / ISO 10707
  • Ready biodegradability – Manometric respirometry test: OECD 301F
  • Biodegradability in seawater: OECD 306

How does it work?

You are welcome to contact us directly for an initial discussion of an ecotoxicological test program or a tailor-made design of the studies.

Key Features

Specialized in ecotoxicological tests with marine species

Experience in testing chemicals for potential endocrine disrupting properties using fish

Extensive experience with whole effluent toxicity tests of mixed effluents including discharged ballast water and produced water

Fate modelling utilized in environmental risk assessment to estimate Predicted Environmental Concentrations (PEC)

Order your ecotoxicological test today at our Environmental Laboratory

Contact our DHI experts in ecotoxicological testing for more information:

Anja Kamper: aka@dhigroup.com, +45 4516 9082
Amalie Thit Bruus Jensen: atbj@dhigroup.com, +45 4516 9229
Gitte I. Petersen: gip@dhigroup.com, +45 4516 9312

Contact us