Some parents are concerned that crumb rubber may cause cancer due to the fact that crumb rubber is known to have at least 11 carcinogens and 20 lung irritants. The question is, are these irritants prevalent enough to cause serious illness in children. The EPA is currently involved in a study due out at the end of 2017. The EPA did release an update in December of 2016 on the study, outlining what gaps were in the current data. To find out more, check out pages 43 and 44 of the EPA update.
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The Turf War: How Safe Are the Fields Where We Play?
In 2014, I saw Amy Griffin's list. Five years before, the former U.S. women's national team goalkeeper and current University of Washington goalkeeper coach had started gathering a list of athletes who had played on crumb-rubber synthetic turf and had been diagnosed with cancer. She started the list when two goalkeepers she knew with lymphoma had suspected it may be from "those black dots." Then, other goalkeepers Griffin knew and coached were revealed to have cancer.