Use these links to learn more about research on synthetic turf/recycled tire crumb rubber.
Environmental Protection Agency – Federal Research on Recycled Tire Crumb Used on Playing Fields
Consumer Product Safety Commission – Crumb Rubber Safety Information Center
California Office of Environmental Health Hazard Assessment – Synthetic Turf Studies
Centers for Disease Control and Prevention/Agency for Toxic Substances and Disease Registry – Federal Research Action Plan on Recycled Tire Crumb Used on Playing Fields and Playgrounds