Exposure modelling can predict the environmental exposure concentration of a specific chemical released into the environment via production processes or use of the chemical. The ECHA Technical Guidance Document describes the principles of basic calculation of predicted environmental exposure concentrations using the modelling tool EUSES. When a site-specific exposure assessment is required, for instance in relation to industrial wastewater emissions to local water areas, it may be relevant to use more sophisticated tools.

Human and environmental exposure
Based on accepted models, DHI has developed such refined modelling tools for both human and environmental exposure calculations. The VOICE software can be applied in estimating an exposure concentration in indoor climate and ECO Lab software can be applied in estimating the exposure concentration in aquatic compartments.

For the environmental hazard assessment, we possess extensive knowledge of the ecotoxic effects of chemicals obtained from numerous R&D projects and years of test experience in our laboratory. And for many years, we have applied internationally accepted QSAR tools for the evaluation of both fate and ecotoxicological properties of chemicals.

We have conducted numerous environmental risk assessments related to either site-specific emission scenarios (e.g. industrial production site) or more generic emissions of chemicals to the environment. Relevant examples include risk assessments of chemicals and produced water (offshore), of transport of hydrocarbon fuels and of chemicals used as ingredients in commercial preparations.