Welcome to the Models and Downloads pages of the wca environment website. From here you can explore and download some of the software tools and reports that we have produced. Before downloading, you will be asked to register a username and email address. We will use this to inform you by e-mail of any updates to the Models and Downloads section, plus other information that may be of interest to you. We will not share your contact details with any other organisations, and you may opt out from receiving information from us at any time by sending an e-mail to email@example.com with “E-mail opt-out” in the title line.
Decision tool for (Q)SAR use under REACH »
(Quantitative) Structural Activity Relationships ((Q)SARs) are methods used to predict various properties of a substance from its chemical structure. There are many (Q)SARs available. Some are free-to-use whilst others are proprietary. Under many regulatory regimes, including REACH, (Q)SARs may be used to fulfil some data requirements reducing unnecessary testing.
We’ve developed a spreadsheet tool to guide users through the process of identifying if (Q)SAR are relevant in a given situation. We’ve also summarised which (Q)SAR are available for various classes of chemicals and endpoints and provided links to these where possible.
Chemicals considered to be of concern by Governments and NGOs »
A large number of chemical priority lists or lists of chemicals of concern have appeared over the last 40 years. These have been derived by a wide range of organisations, for a variety of purposes, using differing methodologies.
We have selected 12 lists covering a range of types and organisations and broadly related to Europe and the USA. The combined list has been compiled from the data contained in the governmental and NGO lists below, and is presented as a pdf document.
We hope that this list is useful to organisations who want to be aware of potential issues associated with the substances that they use (although we must stress the word “potential”, as the evidence for adverse effects is sparse for some of the identified substances).