Escher, B.I.* ; Altenburger, R.* ; Blüher, M. ; Colbourne, J.K.* ; Ebinghaus, R.* ; Fantke, P.* ; Hein, M.* ; Köck, W.* ; Kümmerer, K.* ; Leipold, S.* ; Li, X.* ; Scheringer, M.* ; Scholz, S.* ; Schloter, M. ; Schweizer, P.J.* ; Tal, T.* ; Tetko, I.V. ; Traidl-Hoffmann, C. ; Wick, L.Y.* ; Fenner, K.*
Modernizing persistence-bioaccumulation-toxicity (PBT) assessment with high throughput animal-free methods.
Arch. Toxicol. 97, 1267-1283 (2023)
The assessment of persistence (P), bioaccumulation (B), and toxicity (T) of a chemical is a crucial first step at ensuring chemical safety and is a cornerstone of the European Union's chemicals regulation REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals). Existing methods for PBT assessment are overly complex and cumbersome, have produced incorrect conclusions, and rely heavily on animal-intensive testing. We explore how new-approach methodologies (NAMs) can overcome the limitations of current PBT assessment. We propose two innovative hazard indicators, termed cumulative toxicity equivalents (CTE) and persistent toxicity equivalents (PTE). Together they are intended to replace existing PBT indicators and can also accommodate the emerging concept of PMT (where M stands for mobility). The proposed "toxicity equivalents" can be measured with high throughput in vitro bioassays. CTE refers to the toxic effects measured directly in any given sample, including single chemicals, substitution products, or mixtures. PTE is the equivalent measure of cumulative toxicity equivalents measured after simulated environmental degradation of the sample. With an appropriate panel of animal-free or alternative in vitro bioassays, CTE and PTE comprise key environmental and human health hazard indicators. CTE and PTE do not require analytical identification of transformation products and mixture components but instead prompt two key questions: is the chemical or mixture toxic, and is this toxicity persistent or can it be attenuated by environmental degradation? Taken together, the proposed hazard indicators CTE and PTE have the potential to integrate P, B/M and T assessment into one high-throughput experimental workflow that sidesteps the need for analytical measurements and will support the Chemicals Strategy for Sustainability of the European Union.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Review
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Biodegradation ; Hazard Assessment ; In Vitro Bioassay ; Mobility ; New Approach Methodologies (nams) ; Persistence ; Toxicity; In-vivo Extrapolation; Testing Strategy; Risk-assessment; Chemicals; Vitro; Chemistry; Progress; Safety; Biotransformation; Prioritization
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2023
Prepublished im Jahr
0
HGF-Berichtsjahr
2023
ISSN (print) / ISBN
0340-5761
e-ISSN
1432-0738
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 97,
Heft: 5,
Seiten: 1267-1283
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Springer
Verlagsort
Tiergartenstrasse 17, D-69121 Heidelberg, Germany
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30201 - Metabolic Health
30202 - Environmental Health
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Helmholtz Diabetes Center
Environmental Sciences
Enabling and Novel Technologies
Allergy
PSP-Element(e)
G-506501-001
G-504700-002
G-503000-001
G-503400-001
Förderungen
Copyright
Erfassungsdatum
2023-10-06