Consumer exposure arises from a large diversity of products that may contain chemical compounds. Since experimental data on consumer exposure are scarce or absent, various models have been developed to estimate exposure to chemicals in or released from consumer products. RIVMNational Institute for Public Health and the Environment has developed the following models: ConsExpo Web, PACEM, ConsExpo nano and DustEx.


ConsExpo Web

ConsExpo Web is a tool/web application that provides a set of models to estimate the exposure to substances from consumer products. ConsExpo is used for many different applications across different legal frameworks such as cosmetics, biocides and pesticides. The tool is also frequently applied within REACH for higher tier estimation of exposure. The ConsExpo model is freely accessible at

ConsExpo web is maintained and continuously kept up to date by RIVMNational Institute for Public Health and the Environment in cooperation with sister institutions ANSES (French agency for Food, Environmental and Occupational Health Safety,France), BfR (Federal Institute for Risk Assessment, Germany), FOPH (Federal Office of Publich Health, Switserland) and Health Canada. More background information about the ConsExpo model and project can be found at



The Probabilistic Aggregate Consumer Exposure Model (PACEM) has been developed for estimation of aggregate exposure to chemicals contained in multiple consumer products that are used in combination. The model has been developed by RIVM, in cooperation with ETH Zürich and Radboud University of Nijmegen. The model is based on realistic product usage information obtained from surveys. Currently, information on the usage of personal care products and household products is included. The model is, at present, only operational at RIVM. Efforts are being made to make the tool available for the public.


ConsExpo nano

ConsExpo nano is a tool to investigate potential consumer exposure to nanomaterials in consumer spray products. Consumers are potentially exposed to nanomaterials during use of nano-enabled consumer products. Of particular concern is the application of nanomaterials in spray products. To estimate the exposure of the consumer to nanomaterials from these products, the ConsExpo nano tool has been developed, which was adapted from the ConsExpo model for the estimation of exposure to regular substances in spray products. The tool is freely accessible at



The DustEx model is used to assess exposure to semi-volatile organic compounds (SVOCs) from products that are introduced in the indoor environment. The typical products considered are solid material products (e.g. flooring, wall covering, electronic devices).  SVOCs are released from these products into indoor air. Depending on their physicochemical properties, these substances may subsequently adsorb to airborne particles, indoor surfaces and house dust. The tool is freely accessible at

The DustEx model was developed by the RIVM and ETH Zürich in the CEFIC LRI project B12. More information about the project can be found on the website of CEFIC.