Chemical Journeys – Details, episodes & analysis

In this episode, I speak with Dr. Watze de Wolf. 

Watze has had a long and accomplished career working as a scientist and manager in both industry and regulatory settings, including 15 years working at the European Chemicals Agency (ECHA). 

We have a wide-ranging discussion about his experiences and observations of how chemicals management has evolved over recent decades, and attempt to provide a diagnosis for the current situation and outlook for the years ahead. 

This includes:

• Watze’s background, career journey and people he worked with
• The tension between the uncertainty and complexity of science vs the need for clear and predictable regulation
• The importance of communication and meeting your audience where they are
• Contrasting sensitivities and drivers of behaviour in different industries
• The shift away from risk-based approaches, and the rise of persistence
• The importance of dialogue and the value of organisations like the Society of Environmental Toxicology and Chemistry (SETAC)
• Understanding EU regulations as complex systems 
• Experiences with REACH dossiers, from both industry and regulator perspectives
• What it’s like for early career scientists at ECHA
• Discussions and experiences from the ECHA Member State Committee
• Thoughts on the Biocidal Products Regulation (BPR)
• What a new harmonised classification of ethanol means for its ongoing use as a disinfectant
• The essential use concept and how it could re-define chemicals management in Europe
• Importance of EU Member State participation, and the impact of Brexit on regulatory discussions
• Regrettable restrictions and thoughts on the ongoing group-wide restriction of PFAS
• Thoughts on the overall direction of travel, broader technological and societal shifts, and the impact on science

Watze's website: rMSC.fi – rMSC

Member State Committee - ECHA

Trifluoroacetic Acid in the Environment: Consensus, Gaps, and Next Steps | Environmental Toxicology and Chemistry | Oxford Academic

Persistence Science Interest Group Pushes Forward with Global Collaboration and New Initiatives

Literature review on micro‐ and nanoplastic release from food contact materials during their use | EFSA

Reflecting on 40 years of regulatory developments in Europe – Peter Fisk — Embark Chemical Consulting

Visit my website for more content and insights www.embarkchemical.com

In this episode I speak with Dr. Steven Brennan, co-founder and CEO of Foresight.

Foresight is a software platform that helps organizations to make sense of complex and fast moving chemical regulations, so they can always be ready for what's coming next.

Steven and I have a nice conversation that shows how he turned his years of regulatory experience into a software solution that solves a key challenge - how to get access to key insights faster to understand and manage regulatory change. 

Listen to this conversation if you want to get a look into the world of startups and software as a solution (SaaS) from a chemical regulatory point of view. We also talk about aspects of building and growing a business, and some reflections on life as founders and keeping everything in balance. 

Our conversation covers:

• Steven's background and career journey
• The story behind Foresight - identifying an industry need, and developing a solution
• Features of Foresight - how the tool delivers advanced regulatory insights
• Applications and limitations of AI in chemicals regulation
• REACH Article 129 - Member State safeguard clause
• What kinds of customers are using Foresight?
• What process and considerations go into developing new features?
• Building the company - from startup to commercialisation
• The customer buyer journey
• Steven's work as a co-opted member of the ECHA Socio-Economic Analysis Committee (SEAC)
• Steven and Chris swap stories about life as founders

Follow the link to find out more about Foresight and start your free trial: Foresight | The future of chemical policy monitoring

Visit my website for more content and insights www.embarkchemical.com

In this episode I share an article discussing the new hazard classes under the EU CLP regulation, and what this might mean for chemicals management more broadly. 

As a reminder, the new CLP hazard classes are:

• Endocrine disruptors (ED) for human health and the environment;
• Persistent, bioaccumulative and toxic (PBT); very persistent and very bioaccumulative (vPvB); and
• Persistent, mobile and toxic (PMT); very persistent and very mobile (vPvM).

I also share some insights on what has been happening since the article was published.

Read the original article: How should we expect the new hazards under EU CLP to play out in practice? — Embark Chemical Consulting

Events I attended in May:

SETAC Europe 35th Annual Meeting

Designing for Circularity in Biodegradable Chemicals and Polymers | Sustainable Chemicals and Materials Manufacturing Hub

CHEMUK 2025 EXPO

Latest developments on the new CLP hazard classes:

ECHA clarification on deadlines - New hazard classes 2023 - ECHA

ECHA guidance on the new CLP hazards - Guidance on the Application of the CLP Criteria - Part 4/5: Environmental hazards and additional hazards

Persistence Assessment Tool (PAT) preprint - Developing a weight-of-evidence methodology for persistence assessment of substances in the environment | Earth, Space, and Environmental Chemistry | ChemRxiv | Cambridge Open Engage

ECHA webinar and Q&A - Events - ECHA

New hazard classes added to IUCLID - All news - ECHA

C&L Inventory moves over to ECHA CHEM - All news - ECHA

View the latest proposals for harmonised CLP classifications - Registry of CLH intentions until outcome - ECHA

CLH proposal for trifluoroacetic acid (TFA) - Registry of CLH intentions until outcome - ECHA

Visit my website for more content and insights www.embarkchemical.com

I speak with Gabriel Sigmund, Assistant Professor at Wageningen University and Research, and board member of the International Panel on Chemical Pollution (IPCP).

We discuss:

• Gabriel’s background and research interests
• How the fate of charged organic compounds differs from neutral compounds
• The issue of mobility in the environment and the concern around persistent, mobile and toxic (PMT) substances
• Complex interactions controlling sorption and other fate processes in soil
• The ongoing importance of laboratory experiments in the age of AI
• Data availability and data quality challenges for persistence and mobility assessments
• Implications of the new PMT/vPvM hazard classes under the EU CLP regulation
• Simplification and essential use concepts for chemicals management
• The issue of extreme persistence and the concern around trifluoroacetic acid (TFA)
• Pesticides as a potential source of TFA to the environment
• How differences in worldviews influences the debate on chemicals
• Activities of the SETAC Persistence Science Interest Group

Apologies for some sound issues on this one. 

Correction: During the discussion on TFA I commented that I had seen evidence in a presentation by Freeling that concentrations in plant samples had apparently increased four-fold between 2010 and 2020. Having revisited the published work (link below), the approximately four-fold increase was reported over the observation period 1989-2020. 

Sorption and Mobility of Charged Organic Compounds: How to Confront and Overcome Limitations in Their Assessment | Environmental Science & Technology

The Global Threat from the Irreversible Accumulation of Trifluoroacetic Acid (TFA) | Environmental Science & Technology

Pesticides can be a substantial source of trifluoroacetate (TFA) to water resources - ScienceDirect

‘Alarming’ increase in levels of forever chemical TFA found in European wines | Pfas | The Guardian

Levels and Temporal Trends of Trifluoroacetate (TFA) in Archived Plants: Evidence for Increasing Emissions of Gaseous TFA Precursors over the Last Decades | Environmental Science & Technology Letters

Pollution is Colonialism - book by Max Liboiron (2021)

SETAC Persistence Science Interest Group

Webinar recording: Addressing Extreme Persistence – Identification, Behavior and Management of “Forever Chemicals” Beyond PFAS

Upcoming webinar: How to increase understanding of microbial inocula in biodegradation testing? 

SETAC Europe 35th Annual Meeting

In Memoriam: John Parsons

 Themed collection: Transformation Products and Mixtures – Environmental Science: Processes & Impacts

Visit my website for more content and insights www.embarkchemical.com

Ahead of the Society of Environmental Toxicology and Chemistry (SETAC) annual European conference in Vienna (11-15th May), I caught up with Sabine Apitz, SETAC Europe President and Editor-in-Chief of the academic journal Integrated Environmental Assessment and Management (IEAM). 

Sabine and I had a fascinating discussion about environmental science, the scientific community, and the emergence and application of scientific knowledge. We discussed some of the pressing issues and challenges facing the SETAC community, and society at large. Sabine also shared some of what we could look forward to at the upcoming Vienna conference and the 9th SETAC World Congress (and first to be held in Africa) later this year. 

Our conversation covers: 

• Sabine’s background and career journey
• The emergence and application of scientific knowledge
• Using tools and models to inform environmental policy, and appreciating their limitations
• Sabine’s experience working as an independent consultant
• The role of scientists from different backgrounds in science and policy discussions
• Public representation at SETAC and in broader environmental discourse
• Reflections on the current political environment for science and society at large
• Dealing with complexity in trying to understand ecosystems
• Sabine’s own experience with podcasting
• An unexpected finding from an investigation into hygiene products
• Upcoming SETAC events – Vienna and Johannesburg 

This is a great one for anyone interested in learning more about SETAC, the organisation that brings together scientists from across disciplines to study the issue of chemicals in the environment and to inform science-based environmental decisions. 

Links from the discussion:

SETAC website: SETAC

Vienna conference: SETAC Europe 35th Annual Meeting

World Congress event: SETAC 9th World Congress

IEAM academic journal: Integrated Environmental Assessment and Management | Oxford Academic

Sabine's editorial (published in 2017): Science, antiscience, and environmental decision making: A call to action | Integrated Environmental Assessment and Management | Oxford Academic

(co-authors: Thomas Backhaus, Peter M Chapman, Wayne Landis, Glenn Suter)

Sabine's podcast: Join the Dots | jointhedots

(co-hosts: Ece Ozdemiroglu and Jill Duggan)

Visit my website for more content and insights www.embarkchemical.com

In this episode I speak with Delina Lyon, Science Executive for Environment at Concawe. 

Del and I dive deep into the regulatory assessment of complex substances. This issue still presents a wicked challenge for industry and regulators alike, and Concawe's work is right at the forefront of this. 

Our conversation covers:

• What is Concawe?
• Del's role at Concawe
• Environmental assessment of petroleum substances under REACH
• Del's early career and switch from academia to industry
• Reflections on the science-policy interface
• Developments in regulatory testing and assessment
• Conflicts of interest and the role of industry scientists
• The wicked problem of complex substances (UVCBs)
• Challenges with biodegradation testing
• Weight of evidence and the Persistence Assessment Tool (PAT)
• The hydrocarbon block method and related tools PETROTOX and PETRORISK
• Persistence, bioaccumulation and toxicity (PBT) assessments and the new PMT concept

Concawe website

Persistence Assessment Tool (PAT)

PETROTOX tool - Concawe

PETRORISK tool - Concawe

Visit my website for more content and insights www.embarkchemical.com

In this episode I speak with Jason Snape. Jason is a Research Professor in sustainable healthcare and environmental sustainability at the University of York, and prior to that was Global Head of Environment at AstraZeneca. 

Our discussion covers:

• Jason's career journey to date
• His move into academia and future research goals
• Sustainable healthcare in developing economies
• Reflections on regulatory persistence assessments
• Environmental safety within the pharmaceutical sector
• The threat of antimicrobial resistance (AMR)
• Extended producer responsibility and the EU Urban Wastewater Treatment Directive
• The water industry, the state of UK waterways, and public attitudes to drinking water

Jason has a huge amount of knowledge to share about some of the most pressing challenges in society. Join us to explore potential solutions!

Jason's 2018 keynote on AMR at SETAC Europe

ECOSOLUTIONS PhD training programme

Visit my website for more content and insights www.embarkchemical.com

In this episode I am joined by Libby Sommer, an independent consultant working on sustainability in the apparel industry. 

Libby and I discuss:

• Libby’s background and early career
• Her work on sustainability and life cycle assessments in the apparel industry
• Working with start-ups
• Drivers of innovation
• How sustainability focus areas have evolved over the years
• The environmental and human costs of textile waste
• Biodegradation and recycling of textiles
• Reducing and mitigating environmental emissions
• The Association for the Advancement of Alternatives Assessment (A4)
• A4’s links with SETAC and the Safe and Sustainable by Design (SSbD) initiative

Libby’s website: Libby Sommer

Biomimicry Institute Design4Transformation initiative: Resources

Association for the Advancement of Alternatives Assessment (A4) website: Home — Safer Alternatives

Visit my website for more content and insights www.embarkchemical.com

In this episode I share an article discussing the issue of environmental persistence, and why this is fast becoming a top priority that producers of chemical products need to address. I also share some insights on what has been happening since the article was published.

Read the original article: Why environmental persistence should be a top priority for safe and sustainable products — Embark Chemical Consulting

On the latest developments:

ECHA guidance on the new CLP hazards: Guidance on the Application of the CLP Criteria - Part 4/5: Environmental hazards and additional hazards

Recording of SETAC topical discussion on extreme persistence: Addressing Extreme Persistence – Identification, Behavior and Management of “Forever Chemicals” Beyond PFAS on Vimeo

ECETOC workshop on OECD 309 surface water biodegradation test: Overcoming challenges and advancing (bio)degradation guidelines: OECD TG309 revisited - ECETOC

SETAC Vienna conference (11 – 15 May 2025): SETAC Europe 35th Annual Meeting

Further information:

Download the Persistence Assessment Tool: Persistence Assessment Tool (PAT) | Industry insights | News and insights | Ricardo

Read the Cefic-LRI ECO52 project reports: ECO52 – Bioavailability, complex substances and overall persistence (BCOP): three themes to deliver a step-change in persistence assessments – Cefic-Lri

Learn about the SETAC Persistence Science Interest Group: Announcing the New Persistence Science Interest Group

Visit my website for more content and insights www.embarkchemical.com

In this episode I am joined by Peter Fisk, founder of Green Chemical Design Ltd, and formerly of Peter Fisk Associates (now Vitis Regulatory). 

Peter talks about his extensive career journey, and gives an honest appraisal of the evolution and current state of chemicals management in Europe. 

Our discussion covers a lot of ground, including:

• Peter's early career and interests as a scientist
• Making the switch to consultancy and starting a business
• The advent of the REACH regulation and the transformation of chemicals management in Europe
• How interactions between regulators and industry have changed over time
• Unifying qualities of regulatory scientists
• Challenges with the implementation of REACH: on read-across, QSARs, testing costs, bureaucracy, and the speed of regulatory processes
• Hazard assessment vs risk assessment
• REACH for polymers
• Safe and Sustainable by Design (SSbD)
• The challenge of assessing complex substances (UVCBs) and the progress made by the oil industry 
• Opportunities and challenges with green chemistry and chemical substitution
• The potential of Hansen Solubility Parameters as a tool to evaluate chemical hazards
• Remembering Steve Robertson
• Ethical concerns with fish testing and regulatory box-ticking
• Praise for the REACH registered substances database
• The extreme persistence of PFAS and their impact on other chemistries

Peter has accrued a huge amount of knowledge and wisdom during his career. If you're interested in learning from his experience, this one is not to be missed!

Green Chemical Design - Together we can do even better chemistry

In Memoriam: Stephen (Steve) Michael Robertson (1949–2023)

Visit my website for more content and insights www.embarkchemical.com