2025 Annual Report
Annual Report
January 2026 news from the Sec Gen
News

January 2026 news from the Sec Gen

Dear colleagues and friends, As we begin a new year, I would like to thank you for your continued engagement and trust in ECETOC. 2026 promises to be an exciting and dynamic year, and I am pleased...
ECETOC launches Secondee Programme
News

ECETOC launches Secondee Programme

Looking for an extra challenge? A next step to help develop your career? Consider applying for our Secondee Programme! ECETOC is looking for early-career scientists currently working at a member co...
HSSD Tool

HSSD Tool

This software was developed by a consortium of partners to facilitate the uptake of novel approaches to estimate aquatic threshold concentrations (e.g. the concentration at which 5% of the species are exposed above their EC50, HC5).
The Human Exposure Assessment Tools Database (heatDB)

The Human Exposure Assessment Tools Database (heatDB)

heatdb is a public directory of exposure data sources as well as available tools for exposure
NanoApp

NanoApp

ECETOC’s NanoApp is a tool designed to define the boundaries of sets of similar nanoforms and to generate a justification for the REACH registration.
Targeted Risk Assessment (TRA)

Targeted Risk Assessment (TRA)

The Targeted Risk Assessment (TRA) estimates exposures to workers, consumers and the environment that arise during a series of events.
Chronic fish case studies towards an IATA

Chronic fish case studies towards an IATA

Why? Hazard and safety assessments for the pelagic compartment often rely on in vivo studies using a single fish species, raising ethical concerns and uncertainty in terms of extrapolation....
Estimating the environmental release of Synthetic Polymeric Microparticles from Products

Estimating the environmental release of Synthetic Polymeric Microparticles from Products

Why? REACH restriction: SPM use restricted; emissions reporting required by May 2027. Gap: No analytical methods available to measure SPM emissions. Solution: Draft SPERC-based approac...
Case Studies on Reliability and Relevance Considerations during Validation of NAMs

Case Studies on Reliability and Relevance Considerations during Validation of NAMs

Why? Validation of NAMs is often overlooked despite its importance for regulatory use. Traditional validation methods are less suitable for NAMs, which focus on key events rather than apical...
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Publications

Article

Advancing the use of noncoding RNA in regulatory toxicology: Report of an ECETOC workshop

The European Centre for the Ecotoxicology and Toxicology of Chemicals (ECETOC) organised a workshop to discuss the state-of-the-art research on noncoding RNAs (ncRNAs) as biomarkers in regulatory toxi...
Article

Adapting SimpleTreat for simulating behaviour of chemical substances during industrial sewage treatment

The multimedia model SimpleTreat, evaluates the distribution and elimination of chemicals by municipal sewage treatment plants (STP). It is applied in the framework of REACH (Registration, Evaluation,...
Article

Future needs and recommendations in the development of species sensitivity distributions: Estimating toxicity thresholds for aquatic ecological communities and assessing impacts of chemical exposures.

A species sensitivity distribution (SSD) is a probability model of the variation of species sensitivities to a stressor, in particular chemical exposure. The SSD approach has been used as a decision s...
Workshop Report no.31: Advances in Consumer Exposure Science: Data, Modelling and Aggregate Exposure Assessment. 26th January 2016, Brussels
Workshop Report

Workshop Report no.31: Advances in Consumer Exposure Science: Data, Modelling and Aggregate Exposure Assessment. 26th January 2016, Brussels

This workshop report summarises a workshop held in Brussels on 26th January 2016 by the ECETOC Human Exposure Data Task Force on the state of the art of consumer exposure assessment science as develop...
Workshop Report no.30: The Role of Epigenetics in Reproductive Toxicity
Workshop Report

Workshop Report no.30: The Role of Epigenetics in Reproductive Toxicity

This workshop explored the current state of the science on epigenetics and its role in reproductive toxicity. Experts from a range of scientific disciplines met over two days to share knowledge and br...
Special Report no.19: Building a Prenatal Developmental Toxicity Ontology
Special Report

Special Report no.19: Building a Prenatal Developmental Toxicity Ontology

This report discusses the need for a systematic representation of knowledge about developmental toxicity (i.e. an ontology) that would enable computer-based prediction of which chemicals are likely to...
Workshop Report no.29 – Defining the role of chemical activity in environmental risk assessment within the context of mode of action: Practical guidance and advice
Workshop Report

Workshop Report no.29 – Defining the role of chemical activity in environmental risk assessment within the context of mode of action: Practical guidance and advice

Chemical activity has recently been promoted as a useful concept for interpreting and classifying ecotoxicological data and for performing environmental risk assessment of chemicals.  The most common...
Technical Report no.125 –  Chemical Risk Assessment – Ecosystems Services
Technical Report

Technical Report no.125 – Chemical Risk Assessment – Ecosystems Services

Ecosystem goods and services are the benefits we (humans) get from nature. They include provisioning services, e.g. from crops that provide food and fibre, regulating services, e.g. the plants growing...
ECETOC 2015 Annual Report
Annual Report
Case studies putting the decision-making framework for the grouping and 4 testing of nanomaterials (DF4nanoGrouping) into practice
Article

Case studies putting the decision-making framework for the grouping and 4 testing of nanomaterials (DF4nanoGrouping) into practice

ECETOC concept allows assessing the safety of nanomaterials  undertaking animal testing only as a very last resort Brussels, December 2015 The safety of nanomaterials can be ensured by testing...
Application of the Activity Framework for Assessing Aquatic Ecotoxicology Data for Organic Chemicals
Article

Application of the Activity Framework for Assessing Aquatic Ecotoxicology Data for Organic Chemicals

Brussels, October 2015 In a Nutshell: The relationship between the toxicity of narcotic chemicals and the octanol water partition coefficient (KOW) has been widely explored. An alternative but c...
Article

From Bioavailability Science to Regulation of Organic Chemicals

Ortega-Calvo JJ, Harmsen J, Parsons JR, Semple KT, Aitken MD, Ajao C, Eadsforth C, Galay Burgos M, Naidu R, Oliver R, Peijnenburg WJ,, Römbke J, Streck G, Versonnen B. 2015. From Bioavailability Scie...
Thresholds in chemical respiratory sensitisation
Article

Thresholds in chemical respiratory sensitisation

Brussels, May 2015 A variety of chemicals are known to cause allergic sensitisation of the respiratory tract associated with allergic rhinitis and asthma. It is generally accepted that the development...
Article

A decision-making framework for the grouping and testing of nanomaterials (DF4nanoGrouping)

The safety of nanomaterials can be ensured by undertaking animal testing only as a very last resort. This is the premise and promise of the Decision-making framework for the grouping and testing of na...
ECETOC 2014 Annual Report
Annual Report
Article

Contribution of New Technologies to Characterisation and Prediction of Adverse Effects

Rouquié D, Heneweer M, Botham J, Ketelslegers H, Markell L, Pfister T, Steiling W, Strauss V, Hennes C. 2014. Contribution of New Technologies to Characterization and Prediction of Adverse Effects....
Workshop Report 28 – Estimating toxicity thresholds for aquatic ecological communities from sensitivity distributions
Workshop Report

Workshop Report 28 – Estimating toxicity thresholds for aquatic ecological communities from sensitivity distributions

WR 28 : Estimating toxicity thresholds for aquatic ecological communities from sensitivity distributions | 02/12/2014 IN A NUTSHELL Predicting the toxicity of chemicals to aquatic communities is an...

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