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What is 6PPD-quinone?

We are aware of the recent identification of 6PPD-quinone and of the preliminary studies that have investigated potential environmental impacts of this chemical. 6PPD-quinone – also known as 6PPD-Q – is a transformation product of the important tire ingredient 6PPD. 6PPD is an antioxidant and antiozonant that helps stop rubber from breaking down, which is critical for tire safety.

TIP welcomes efforts to improve scientific understanding of the potential impacts of TRWP, and following the identification of 6PPD-quinone, building on more than a decade of TIP-sponsored research into TRWP, TIP’s research plan now includes efforts to contribute to the body of scientific knowledge on this chemical.

Related Questions

  1. What are tire and road wear particles (TRWP)?
  2. What has TIP-sponsored research revealed about any potential environmental impacts of TRWP?
  3. Where can TRWP be found?
  4. Are tires the main source of ocean microplastics?
  5. Are tire emissions 1,000 times worse than exhaust emissions? 
  6. Are TRWP a threat to my health?
  7. Are there chemicals from tires in lettuce? 
  8. What is TIP’s approach to scientific research? 
  9. How does TIP ensure the validity of the research that it sponsors?
  10. What is TIP’s TRWP-research mandate, and does this mandate evolve?
  11. What is the final goal of TIP’s TRWP research?
  12. Why is TRWP a multi-stakeholder issue (and what are the implications of that)?
  13. What can tire consumers and drivers do to help limit the generation of TRWP?
  14. TIP’s scientific research helps develop understanding of TRWP, but what about action on the ground, such as mitigation?
  15. What is TIP doing about 6PPD-quinone?
  16. The example of 6PPD-quinone raises a question. What is the potential for replacement of materials and chemicals in tire manufacturing?
  17. Are TRWP a form of microplastic?
  18. Are TRWP a source of marine microplastic pollution?
  19. When and why did TIP begin supporting research into TRWP and their potential health and environmental impact?
  20. Do you provide materials to support TRWP research?
  21. How much TRWP is generated?
  22. What do TRWP look like, how big are they, can I see them with the naked eye?