Ecotoxicity Tests

EPAS International has a BELAC-accredited laboratory with over 30 years of expertise in optimising water treatment installations and minimising the impact of discharges on the environment. Our ecotoxicity testing services help companies comply with discharge permits and evaluate achievable discharge standards. We offer acute toxicity tests on different trophic levels of aquatic organisms, using a standardised approach to indicate the impact of wastewater discharges on the environment.

Ecotoxicity Tests

The tests we perform

Ecotoxicity Tests Under Accreditation Other Ecotoxicity Tests
  • Bacterium: Vibrio fisherii
  • Freshwater algae: Pseudokirchneriella subcapitata
  • Marine algae: Phaeodactylum tricornutum
  • Freshwater crustacea: Daphnia magna
  • Marine crustacea: Artemia fransiscana
  • Fish: Danio Rerio
  • Freshwater rotifera: Brachionus calyciflorus
  • Marine rotifer: Brachionus plicatilis
  • Freshwater crustacea: Thamnocephalus platyurus
  • Brackish water copepode: Acartia tonsa
  • Freshwater crustacea: Ceriodaphnia dubia

In addition to the previously mentioned standard tests, we also offer other ecotoxicological analyses such as biodegradability testing using Zahn-Wellens tests, pilot tests, and more. Overall, EPAS Consultancy's ecotoxicity testing services provide important information to companies in various sectors, including chemicals, pharmaceuticals, textiles, and waste processing, to comply with discharge permits and environmental regulations and to minimise the impact of their discharges on the environment.

Ecosystem Impact Analysis

EPAS International has a specialised and accredited laboratory that can carry out ecotoxicity tests for acute effects on both freshwater and saltwater organisms, and is also equipped to investigate long-term effects using a package of in vitro and in vivo tests known as "ScreenTox". By characterising the aquatic ecotoxicity of a wastewater, our experts are able to determine if a wastewater is toxic for the ecosystems or not.

For the tests, our company uses a Whole Effluent Toxicity (WET) approach, which considers the overall toxic effect of wastewater or effluent on aquatic organisms. This approach is fundamentally different from the classical analytical approach in which the specific pollution is only quantified chemically. WET therefore offers an added value and gains importance in environmental permits and company-specific BAT (Best Available Technology) studies.

What if the sample is toxic?

In case the result of the test indicates toxicity, our experts can help identifiy the cause and possible elimination method of the toxicity through a TIE analysis


Some of the biggest benefits of ecotoxicity testing


Informed decision-making

Environmental responsibility

Regulatory compliance & reputation and risk management



Did you know...


... that our laboratory is one of only two accredited laboratories for ecotoxicity in Flanders?


Thanks to the hard work of our lab technicians, EPAS International's lab has been BELAC 657-TEST accredited for ecotoxicity tests since 2019.


Take a look at our certificate below:



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