AR226-3086 TRADE SECRET DuPont HLO-1998-00729 Study Title Acute Dermal Irritation/Corrosion Study with H-22481 in Rabbits FINAL REPORT HaskeH Laboratory Project ID: HLO-1998-00729 P&rfonninp Laboratory Project ID: WIL-1891fiO Data Requirement Organization for Economic Cooperation and Development (OECD), Part 404 (1992) European Economic Cooununitv (EEC) 92/69 Annex V - Method B4 (1992) Author Tom G.

tFM recherc/ie AR226-3140 CONFIDENTIAL SPONSOR ElfAtochemS.A.

AR226-3154 TRADE SECRET Study Title H-23960: Bacterial Reverse Mutation Test in Salmonella typhimurium and Escherichia coli Laboratory Project ID: DuPont-3828 TEST GUIDELINES: U.S.

AR226-3155 TRADE SECRET Study Title H-23961: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2923 DuPont-2923 AUTHOR: Carol Finlay, B.A.

TRADE SECRET AR226-3175 DuPont-6010 Study Title H-24516: Static, Acute, 48-Hour Screening Test to Daphnia magna Laboratory Project ID: DuPont-6010 AUTHOR: Robert A.

Department for Environment Food & Rural Affairs Seacole Building 4th Floor 2 Marsham Street London SW1P 4DF Rachel Salvid e By email: watershedinvestigations.com T: 03459 33 55 77 M@defra.gov.uk www.gov.uk/defra Our ref: EIR2024/02935 3 April 2024 Dear Rachel, REQUEST FOR INFORMATION: Defra and Environment Agency (EA) -- Per- and Polyfluoroalkyl Substances (PFAS) Thank you for your request for information of 5 February 2024 about per- and polyfluoroalkyl substances (PFAS).

ELSEVIER Chemosphere 226 (2019) 898-906 Contents lists available at ScienceDirect Chemosphere journal homepage: www.elsevier.com/locate/chemosphere Waste incineration of Polytetrafluoroethylene (PTFE) to evaluate potential formation of per- and Poly-Fluorinated Alkyl Substances Chec updates (PFAS) in flue gas Krasimir Aleksandrov a, Hans-Joachim Gehrmann a, Manuela Hauser a, Hartmut Matzing a, Daniel Pigeon b. , Dieter Stapf a, Manuela Wexler a a Karlsruhe Institute of Technology, Karlsruhe, 76021, Germany b W.L.

PFAS Study in Chemical Plants and Refineries Equipment France Final Report July 2023 Table of Contents 01 Executive Summary 02 Scope and methodology 03 Overview of PFAS 04 Impact analysis of PFAS partial or total ban 05 PFAS usage in Chemical and Refining plants 06 PFAS alternatives 07 Conclusion Executive Summary (1/4) PFAS are a large group of substances, both polymeric and non-polymeric, containing carbon-fluorine bonds (C-F) which is considered to be the strongest in organic chemistry, resisting heavily to degradation OECD lists around 5000* PFAS which are scientifically referenced by their chemical structure category name (e.g., polytetrafluoroethylene), but better known by industrials by their abbreviations (e.g., PTFE) or brand name (e.g., Teflon) While encompassing a very diverse portfolio of products, PFAS are predominantly used as raw material in chemical synthesis and are mainly found in solid form in equipment.

Haskell Laboratory for Toxicology and Industrial Medicine January 4,2002 AR226-3215 TO: ( Milot Developmental Toxicity Study in Rats cc: L.

R226 -- 3260 442 --~ <9 DuPon`tanHdaEsnkveilrloLnambeonrtaatlorSycefnorceHesalth ARA2E_ 3260 Novembe4r, 2002 co `w Quallty T Assurance TO: MR FILE{@RBPOCKET 15425 FROM: 1.C.Maslanka Ft `TESTSUBSTANCE STABILITY OFH.25425 9 MHaesdkieclallSRuemspelaercNhuPmrboejre:ct Number: m75i42l5 Haskell Reference Standard Number: 25425 `AAnnaallyyttiiccaall RTeesptorCtodNeu:mber: wHAe-2002-094 Notebook References: (--] pAtetrafcohremdedisttohseatainsaflyytpircoatlorceoplorretqfuoirretmheensttsufdoy itdeesnttisfuibesdtaabnocveset,abTilhiitsyabnuatlymsiasywaalso be used for other purposes. 4 M`HeadsikcelallSRaemspelaercNhuPmrboejre:ct Number: Analytical Report Number: [254--25 HA2002-094 pA samtple oef H-2o5f4s25iweasgsruebimint1eodn1Ocwtiosbemres14s,e2d00t2aR end anaR lyzed oM n October 15,is2002.

AR2RG - 3268 450 AR226 - 3268 4 HaskealnldLIanbdoursattioarlyMfeodriTcoixniecology March 13,2003 To: C Study in Rats.

From: To: Cc: Subject: Date: PFAS 21 December 2022 14:56:00 Hello I am on the PFAS working group and I want to give you some advance notice of the sort of information we are likely to ask from the company.

From: Sent: To: Subject: 22 February 2023 17:02 AGC Autosampler Hi As discussed, we have a mechanical fault with our autosampler and have a temporary sampler set up to collect our 24 hour effluent sample.

RESULTATEN MONITORING GENX/PFOA/PFOS IN OPPERVLAKTEWATER ALBLASSERWAARD Michel Lucas, WSRL, 20-02-2023 Update van de memo waterkwaliteit Deze notitie beschrijft de resultaten van de monitoring van het oppervlaktewater in de Alblasserwaard.