![]() Prior to the FRAP being initiated, most studies examining these potential risks have been considered inconclusive or otherwise incomplete. In this study, concrete with crumb rubber replacement 3, 6, 9, 12, and 15 is adopted. Visit CPSC’s Crumb Rubber Information Center website to learn more external icon. The Part 1 Tire Crumb Rubber Characterization Research Report summarizes results on a range of chemicals, including metals and organic chemicals, that were found in the tire crumb rubber. Due to the wide use of concrete in construction, the application of crumb rubber as a material of concrete would provide an efficient way of disposing the enormous amount of waste that is generated from scrap tyres. ![]() Using data collected from the survey and from the EPA and CDC/ATSDR, CPSC will conduct a study to better understand children’s exposure to playground surfaces made of tire crumb rubber. Tire Crumb Rubber in Playground Surfaces Study: CPSC conducted a survey gathering information about children’s behavior on playgrounds. Incorporating CR in asphalt mixtures by the dry method is becoming popular with the emphasis on low carbon emissions, greenness, and sustainability. The Part 1 report is being released in two volumes Volume 1 contains the body of the report Volume 2 contains the appendices. The tire material and other rubber used on playgrounds can include the following: Loose tire shred (rubber mulch) or crumb on a surface that can be raked. Crumb rubber (CR) from grinding waste tires has served as an asphalt modifier in asphalt pavement construction for decades. The Part 1 Tire Crumb Rubber Characterization Research Report from EPA and CDC/ATSDR summarizes results for the physical, chemical, and microbiological characterization for tire crumb rubber used on synthetic turf fields. This is an example where what seemed like helpful recycling can instead be harmful. The results from this study will be released at a future date. Those chemicals can also get on our skin and even in our mouths. Human Exposure Characterization Study: In 2017, EPA and CDC/ATSDR collected information and data to understand human exposure to tire crumb rubber infill used in synthetic turf fields. The results from this study are available in Part 1 of the final report. These samples were analyzed for a variety of chemical compounds. Tire Crumb Characterization Study: In 2016, tire crumb samples were gathered from 9 tire crumb manufacturing/recycling plants and from 40 indoor and outdoor synthetic turf fields located across the United States. Literature Review/Gaps Analysis: In 2016, the agencies released a status report that includes the final literature review/gaps analysis and describes the progress of the research activities to date.
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