On 25 September 2023, the Netherlands’ National Institute for Public Health and the Environment (RIVM) added the following substances to the List of Substances of Very High Concern (ZZS):

1. 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol, oligomeric reaction products with propylene oxide and n-butyl glycidyl ether

2. Beryllium, bis(benzo[h]quinolin-10-olato-.kappa.N1,.kappa.O10)-, (T-4)-

3. Beryllium;2-pyridin-2-ylphenolate

4. Amorphous bismuth tungsten lead tellurite

5. Amorphous boron lithium zinc tellurite

6. Chromium tris(2-ethylhexanoate)

7. Dore

8. Reaction mass of benzene and isopropylbenzene

9. Reaction mass of tert-butyl acetate and strontium chromate and heptan-2-one and oxosilanediol and dioxotitanium and m-xylene and 2-methoxy-1-methylethyl acetate and solvent naphtha (petroleum), light arom. and ethylbenzene

10. Stannane, tributyl(2-ethoxyethenyl)-, (Z)-

11. Tetrabromoethane

12. Tin, dioctylbis(2,4-pentanedionato-.kappa.O2,.kappa.O4)-

13. Tributyl borate

14. Triethyl borate

15. Sulfuric acid, mixt. with chromic acid (H2Cr2O7) potassium salt (1:2)