[eyedigress]

Only in Calif.

[Secret Agent Man]

Maybe from a legal view, but the problems would be nationwide.

https://www.expertinstitute.com/resources/insights/artificial-turf-cancer-lawsuit-toxic-compounds-may-be-linked-to-cancer/

Apparently the concern is the rubber backing is made from recycled tires and such, and contain lead and other chemicals, and as the rubber breaks down over wear and water, the players get exposed to these chemicals.