Ecotoxicological studies of the effects of chemicals on aquatic or soil-living organisms are used to derive predicted no effect concentrations and water quality standards. High quality ecotoxicological data including long-term studies of chronic toxicity may lead to a more reliable risk assessment, because the assessment factor applied in cases of insufficient data can be diminished.
Laboratory testing is also used to prove the compliance of new environmental technologies with the performance requirements defined by the technology developers or by the authorities. Systems for treating ballast water before it is released to the sea represent a new technology that is developed and approved by use of laboratory testing. Furthermore, tailor-made investigations of waste water, solid waste and contaminated soil are an essential decision-support tool in relation to optimization of treatment technologies or risk assessment.
DHI services include:
- Studies conducted in accordance with ISO 17025, accredited by DANAK (the Danish Accreditation and Metrology Fund) or in compliancewith the OECD Principles of Good Laboratory Practice (GLP)
- Acute and chronic toxicity studies with organisms in water, sediment and soil
- Bioaccumulation and biodegradation studies including simulation tests
- Land-based testing for type approval of ballast water management systems
- Pigment and toxin standards for monitoring the composition and biomass of algal groups and the occurrence of toxic algae
- Analyses for monitoring phytoplankton
- Studies of leaching from waste and contaminated soil
- Wastewater studies related to physical/chemical and biological treatment processes