Dietary Risk Assessment for Biocides

This workshop will provide an update on the latest scientific and regulatory developments in the field of dietary risk assessment for biocides, bringing together competent authorities and industry, as well as the consulting sector.

OverviewProgrammeSpeakersVenuePrices & Services

Overview

With growing regulatory scrutiny, ongoing methodological developments, and new guidance initiatives placing higher demands on industry and authorities alike it is time to discuss the assessment of the potential transfer of biocide residues into food and feed.

In this format experts from authorities, industry, consultancies, and research institutions will discuss current challenges, evolving assessment approaches, practical experience, and future regulatory expectations under the Biocidal Products Regulation (BPR).

This workshop will help you to:

  • understand the latest regulatory and scientific developments in dietary risk assessment for biocides under the BPR
  • achieve greater confidence in addressing residue transfer, exposure assessment, and evolving regulatory expectations
  • master current approaches, methodologies, and practical considerations for robust and defensible dietary risk assessments

Highlights

  • Introduction to dietary risk assessment of biocides – overview of key concepts and methodologies
  • Update from ECHA: First hand information about the BPR Volume III Part D – Current status and next steps in guidance development
  • Rinse-off studies for cleaning and disinfectant products
  • Update on the BfR Livestock Calculator: Upcoming updates aligned with BPR Volume III Part D guidance revision
  • Practical Experience with Biocidal Products in Animal Husbandry and Farm Biosecurity
  • PT19 scenario for insect repellents (skin application), Scenario development, practical examples, and regulatory context

Who should attend this meeting?

Professionals working in the fields of:

  • Regulatory affairs
  • Registration
  • Exposure assessment
  • Risk assessment
  • Toxicology

Sectors that should take part:

  • Biocides and chemical industry
  • Producers of biocidal products
  • Regulatory authorities
  • Research institutes
  • Scientific and regulatory consultancies

Picture Credit: © mentalmind - Shutterstock

 

Programme

PLEASE NOTE: The indicated times refer to Central European Summer Time CEST.

For further time zones, please view here.



Thursday, 22 October 2026


Morning Session | 09:00 – 12:30 CEST
The presentation slots include sufficient time for questions and answers.
Regulatory Landscape
09:00
Welcome Address by the Organisers and the Chair

Michael Werner, Stockmeier Chemie, Germany

09:10
Introduction to Dietary Risk Assessment of Biocides
  • Existing and upcoming guidance on dietary exposure and risk assessment (DRA) of biocides
  • Biocidal use settings with DRA relevance
  • MRL compliance vs. DRA
  • State of the play for the conduct of DRAs

Michael Werner, Stockmeier Chemie, Germany

09:45
ECHA Update: Guidance on BPR Volume III Part D – Current Status & Next Steps
  • Presentation of the newly adopted/near-final Part D guidance

Katya Vasileva, European Chemicals Agency (ECHA), Finland

Methods, Tools and Studies
10:20
The Evolution of Residue Assessment for Quaternary Ammonium Compound-Based Biocides: Achievements, Challenges and Remaining Open Questions
  • The journey from active substance conclusions to the generation of product-specific residue data
  • Practical challenges associated with designing and conducting rinsing studies in the absence of established guidance
  • Remaining uncertainties regarding data interpretation, PT-specific requirements, harmonisation and future risk mitigation measures

Fabien Rouessay, Redebel Regulatory Affairs, Belgium

10:55
Coffee break
11:20
Dietary Exposure Assessment for Professional Uses of Biocides: Status, Risk Assessment Approaches and Experimental Design of PT03 and PT04 Rinsing Studies

Representative of ANSES, France (confirmed, speaker to be announced)

11:55
Rinse-Off Studies on Cleaning and Disinfecting Products
  • Experience and challenges with designing and conducting rinsing and wiping studies to determine residue levels
  • Methodological design of studies under realistic conditions
  • Evaluation of results for dietary risk assessment and implications for regulatory guidance

Katherine Clark, Arxada, Switzerland

12:30
Lunch break


Afternoon Session | 13:30 – 16:00 CEST
13:30
PT19 scenario for insect repellents with skin application
  • Scenario, examples
  • Experience and current status

Kathrin Gottlob, German Federal Institute for Risk Assessment (BfR), Germany

14:05
The Planned Update of BfR Livestock Calculator in Conjunction with the Current Guidance on BPR Volume III Part D Update

Saskia Klutzny, German Federal Institute for Risk Assessment (BfR), Germany

Real-World Biocide Applications
14:40
Practical Experience with Biocidal Products in Animal Husbandry and Farm Biosecurity
  • Basic principles of biosecurity
  • How to implement day-to-day hygiene measures
  • Some remarks on the use of biocides and antibiotics on poultry farms

Bart Stokvis, Poultry Vets, The Netherlands

15:15
Short break
15:25
Hygienic Aspects and Biocide Applications in Food Production – Experiences from the Practical Point of View in Real-Life Settings

Florian Werner, Staub & Co. – Silbermann, Germany

16:00
Final Discussion and End of the Workshop

Speakers

Name

Company

Clark

Katherine Clark

Arxada, Switzerland

Katherine Clark is Senior Manager Toxicologist at Arxada in Basel, Switzerland, with extensive experience in regulatory toxicology, human health risk assessment and product safety evaluation. Over the past two decades, she has worked on the assessment of chemicals, biocides and plant protection products, combining regulatory expertise with practical experience in exposure and safety studies. Before joining Arxada, she held positions in regulatory toxicology and scientific research, including work on exposure assessment and nanomaterial safety.

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Gottlob

Kathrin Gottlob

German Federal Institute for Risk Assessment (BfR), Germany

Kathrin Gottlob is a Food Chemist. Since 2007 she has been working at the German Federal Institute for Risk Assessment (BfR) evaluating biocide residues in food. She is a member of the ad-hoc working group ARTFood (Assessment of Residue Transfer to Food) which supports the Biocidal Products Committee with issues related to human exposure to biocides through food.

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Klutzny

Saskia Klutzny

German Federal Institute for Risk Assessment (BfR), Germany

Saskia Klutzny is a biotechnologist and worked in the pharmaceutical research industry before joining the German Federal Institute for Risk Assessment (BfR) in 2018. As a Senior Scientific Officer she is evaluating the residue behaviour of biocides and is assessing the risk of consumers to biocide residues in food. She is a member of the BPC ad-hoc working group ARTFood (Assessment of Residue Transfer to Food) and is working on the advancement of assessment concepts and exposure models.

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Rouessay

Fabien Rouessay

Redebel Regulatory Affairs, Belgium

Fabien Rouessay spent about 15 years in the chemical industry and more specifically in the biocidal regulation area before joing Redebel Regulatory Affairs five years ago. Here he is a project and consortium manager: In addition to providing support during the whole dossier preparation process, he assists applicants in defending their dossiers throughout assessment challenging period also by representing them at meetings with competent authorities.

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Stokvis

Bart Stokvis

Poultry Vets, The Netherlands

Bart Stokvis is a poultry veterinarian with more than 30 years of experience advising poultry farms on biosecurity, hygiene, and health management. Throughout his career, he has worked in poultry practice, breeding, and international technical support, helping poultry producers optimise flock health, welfare, and performance. His expertise includes disease prevention, biosecurity programmes, layer breeding, and poultry management across a wide range of production systems.

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Katya Vasileva

European Chemicals Agency, Finland

Katya Vasileva is Senior Scientific Officer at the European Chemicals Agency (ECHA), working in the Biocidal Products unit as a toxicologist and dossier manager. She has more than 20 years of experience in chemicals management and regulatory assessment, including previous roles within the Bulgarian Ministry of Environment and Water and the Ministry of Economy. Her expertise covers the implementation of EU chemicals legislation and the scientific evaluation of biocidal products.

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Werner

Michael Werner

Stockmeier Chemie, Germany

Michael Werner is a chemist as well as a certified (DGPT) and Eurotox-registered toxicologist. He has worked for various consultancies, as well as in the chemical and plant protection industries, and has almost 30 years of experience in human health hazard, exposure and risk assessments for PPPs, biocides and industrial chemicals. Michael has been working on biocides for nearly 20 years, with a focus on human health, efficacy and regulatory aspects across almost all product types, including the assessment of potential endocrine-disrupting properties of active substances and biocidal products, and their discussion and defence before regulatory authorities at national and EU level. At Stockmeier Chemie, Michael heads the regulatory affairs department with a strong focus on biocides in general.

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Florian Werner

Staub & Co. - Silbermann, Germany

Venue

Online Workshop
This workshop is going to be held online.
You can reach us directly at:
Phone : +49 231 75896-50
Email: info@akademie-fresenius.de
www.akademie-fresenius.de

Prices & Services

Participation Fee: € 995.00 plus VAT.

The registration fee includes the following benefits:

  • Participation in the Online Event
  • Event Documentation (available via download from our website)
  • Certificate of attendance

Representatives of an authority or a public university are therefore eligible for a reduced fee of € 695.00 plus VAT per person (please provide evidence). The reduced fee cannot be combined with other rebates.

Group Reductions
For joint bookings received from one company we grant a 15% discount from the third participant onwards.

Terms of Cancellation / Book without Risk
You can cancel your participation in our online events free of charge and without giving reasons in writing up to 1 week before the start of the event. In the case of later cancellations and non-login to the online event, no participation fees can be refunded.
In this case, however, you will receive access to the documentation after the event.
You can name a substitute participant free of charge at any time.

Event Documentation

Would you have liked to attend this event, but cannot spare the time?

For the price of 295,00 € plus VAT you can order a complete set of event documentation. A few days after the event you will receive the access data for the restricted download section of our Website. There you will find all presentations (subject to the approval of our speakers) as pdf-files.

Order documentation

Anne Möller

Your Contact

Anne Möller
Programme and conceptual design

+49 231 75896-84
amoeller@akademie-fresenius.de

Anne Möller

Your Contact

Anne Möller
Programme and conceptual design

+49 231 75896-84
amoeller@akademie-fresenius.de

Anne Möller

Your Contact

Anne Möller
Programme and conceptual design

+49 231 75896-84
amoeller@akademie-fresenius.de

Jennifer Zerth

Your Contact

Jennifer Zerth
Organisation and participant management

+49 231 75896-79
jzerth@akademie-fresenius.de

Jennifer Zerth

Your Contact

Jennifer Zerth
Organisation and participant management

+49 231 75896-79
jzerth@akademie-fresenius.de

Display / Supplement

Present your Company at the Event.

You can personally present your products and services directly to your specified target group. We are happy to provide you with further information on our range of available options – from displaying company information at the reception counter to presenting your company with an exhibition stand.

We would be pleased to assist you personally:

Monika Stratmann

Monika Stratmann
Phone: +49 231 75896-48
info@akademie-fresenius.de

Press Contact

We offer journalists and editors a platform where they can get in touch with the experts.

If you are the editor of a specialist publication and interested in a press pass or media partnership, please contact us well in advance. We are happy to advise you.


Please contact us:

Katharina Geraridis

Katharina Geraridis
Phone: +49 231 75896-67
presse@akademie-fresenius.de

Picture Gallery