Health concerns over tire-filled turf have some parks, schools seeking substitute

John Keilman:

Rain had fallen steadily for hours, the kind of shower that turns grass fields to mush and forces young athletes to take the day off. But there they were, a squad of 9- and 10-year-old Oak Park soccer players practicing their skills on a damp but playable surface made of plastic and rubber.

“I got here and was super excited because any other field, there would be standing water,” said Todd Hover, the team’s coach.

Rain-or-shine playability is a big reason why thousands of schools and park districts around the country have turned to artificial turf, but increasingly, some parents worry that the convenience has come with a trade-off.