Rubber Playground Surfaces, Crumb Rubber Mulch, and Track Surfacing — outdoor safety profile
Low riskEvery tire contains 6PPD to prevent cracking from ozone.
What is this product?
Every tire contains 6PPD to prevent cracking from ozone. Without it, tires last months instead of years — it is not optional.
What's in it
Click any compound name for its full safety profile, regulatory consensus, and exposure data.
Base ingredients
Primary Source
- Tire wear particles (TWP) — Crumb rubber playground surfaces release tire wear particles
Who's most at risk
- Children — Developing endocrine and neurological systems, higher exposure per body weight
How to use it more safely
- Use in well-drained outdoor areas with proper base preparation
- Maintain at least 6-9 inches depth for fall protection in play areas
- Install proper edging to prevent material displacement and migration
- Inspect regularly for degradation, compaction, and contaminants
Red flags — when to walk away
- Identified safety concern — 6PPD-quinone LC50 coho salmon = 0.8 µg/L (among most potent synthetic hazardous compounds); stormwater concentrations 0.05–2 µg/L during storm events regularly exceed lethal threshold; urban playgr...
Green flags — what to look for
- Third-party safety tested — Independent laboratory verification of safety claims
Safer alternatives
- Cork or wood fiber mulch — Natural, biodegradable alternative with lower chemical leaching potential
- Engineered polymer surfaces — Bound systems reduce particle migration and dust concerns
- Synthetic turf with shock pad — Contained system minimizes environmental exposure and maintenance needs
Frequently asked questions
What's in Rubber Playground Surfaces, Crumb Rubber Mulch, and Track Surfacing?
This product type can contain: 6PPD, 6PPD-quinone, Tire wear particles (TWP), among others. Click any compound name above for the full safety profile.
Who should be careful with Rubber Playground Surfaces, Crumb Rubber Mulch, and Track Surfacing?
Vulnerable populations identified for this product type: children.
How can I use Rubber Playground Surfaces, Crumb Rubber Mulch, and Track Surfacing more safely?
Use in well-drained outdoor areas with proper base preparation; Maintain at least 6-9 inches depth for fall protection in play areas; Install proper edging to prevent material displacement and migration
Are there safer alternatives to Rubber Playground Surfaces, Crumb Rubber Mulch, and Track Surfacing?
Yes — consider: Cork or wood fiber mulch; Engineered polymer surfaces; Synthetic turf with shock pad. See the Safer alternatives section above for details.
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Open in outdoor View raw API dataReference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →