Скачать или смотреть Investigating the fate of chemicals in the environment – Gabriel Sigmund, Wageningen University &...

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 (https://pubs.acs.org/doi/full/10.1021...)


 


The Global Threat from the Irreversible Accumulation of Trifluoroacetic Acid (TFA) | Environmental Science & Technology (https://pubs.acs.org/doi/full/10.1021...)


Pesticides can be a substantial source of trifluoroacetate (TFA) to water resources - ScienceDirect (https://www.sciencedirect.com/science...)


‘Alarming’ increase in levels of forever chemical TFA found in European wines | Pfas | The Guardian (https://www.theguardian.com/environme...)


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 (https://pubs.acs.org/doi/abs/10.1021/...)


Pollution is Colonialism (https://g.co/kgs/MwjqesQ) - book by Max Liboiron (2021)






SETAC Persistence Science Interest Group (https://www.setac.org/resource/announ...)


Webinar recording: Addressing Extreme Persistence – Identification, Behavior and Management of “Forever Chemicals” Beyond PFAS (https://vimeo.com/1029644896/cacea71db8)


Upcoming webinar: How to increase understanding of microbial inocula in biodegradation testing? (https://www.setac.org/group/persisten...)  


SETAC Europe 35th Annual Meeting (https://www.setac.org/discover-events...)


In Memoriam: John Parsons (https://www.setac.org/resource/in-mem...)


 Themed collection: Transformation Products and Mixtures – Environmental Science: Processes & Impacts (https://blogs.rsc.org/em/2025/04/17/e...)






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