There's a connection there: recycled tyre rubber is used a LOT in playgrounds (soft floor surface, etc.) https://www.cpsc.gov/Safety-Education/Safety-Education

There's a connection there: recycled tyre rubber is used a LOT in playgrounds (soft floor surface, etc.) https://www.cpsc.gov/Safety-Education/Safety-Education-Centers/Crumb-Rubber-Safety-Information-Center https://www.cpsc.gov/Safety-Education/Safety-Education-Cente...