New ECETOC expert report: Advancing OECD TG 309 biodegradation testing
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New ECETOC expert report: Advancing OECD TG 309 biodegradation testing

A new expert meeting report is now available on the ECETOC website exploring how OECD TG 309 can be made more robust and environmentally relevant for chemical persistence assessment. The report ref...
We’re Hiring: Join the ECETOC Team as a Trainee!
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We’re Hiring: Join the ECETOC Team as a Trainee!

Are you passionate about science, regulatory toxicology, and making a real-world impact at the intersection of industry, academia, and policy? ECETOC is excited to announce that we’re looking for a...
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.
TRA Task Force – Worker branch

TRA Task Force – Worker branch

Why? The Worker TRA Task Force has been active since 2019, delivering projects that advance the scientific basis of the Worker Targeted Risk Assessment (TRA) tool. Its overarching objective is to e...
Immunotoxicity assessment: Addressing Challenges and Advancing Methodologies [Workshop → Task Force]​

Immunotoxicity assessment: Addressing Challenges and Advancing Methodologies [Workshop → Task Force]​

Why?Regulatory assessment of immunotoxic properties of chemicals is a complex and challenging task​ Limited regulatory guidance exists​ Lack of industry and regulatory knowledge​...
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....
News
11.09.2026

Welcome to Talia Neal-Walthall

We are pleased to welcome Talia Neal-Walthall to ECETOC as a secondee. Talia joins us to work on topics related to exposure, an area central to much of our current scientific programme. She will be with us for two years, working two days a week remotely.

Talia is an exposure scientist with a background spanning environmental engineering, human health risk assessment, and regulatory science. She currently works at ExxonMobil, where she focuses on exposure modelling for complex chemistries. Her role sits at the intersection of research and practical decision making, translating technical evidence into approaches that can support regulatory engagement and real world implementation.

Before joining ExxonMobil, Talia worked in regulatory science, primarily with the U.S. Environmental Protection Agency. There she contributed to projects involving chemical exposure, air quality, and environmental risk assessment. She holds a Ph.D. from Duke University and brings experience in exposure and fate modelling, data analysis, and developing scientific approaches for problems where the available data are incomplete or evolving.

This mix of technical depth and regulatory insight is exactly what our exposure work benefits from, and we are glad to have her contributing to it.

Outside of work, Talia enjoys hiking and camping, painting, puzzles and escape rooms, and exploring art and architecture.

Please join us in giving Talia a warm welcome. We are very happy to have her with us.