Analysis: “no significant health risks to players, coaches, referees and spectators from on-field or off-field exposure” to crumb rubber infill based on the assessment method and available data.

Key finding: "Chemical exposures from tire crumb rubber are likely limited and similar between natural grass and synthetic turf fields"

Conclusion: "Very low level of concern" for players and workers

Key finding: "Risk to health is virtually negligible"

“The Department of Health recommends people who enjoy playing soccer continue to play regardless of the type of field surface,” lead investigator Cathy Wasserman, a Washington state epidemiologist for non-infectious diseases, said.