Do synthetic sports fields and rubber running tracks release microplastics into the air?

What's actually in it

Artificial turf fields use rubber crumb infill, usually made from recycled car tires. This crumb contains polycyclic aromatic hydrocarbons (PAHs), heavy metals, and phthalates from the original tire rubber. As it breaks down from use and UV exposure, it sheds microplastic particles and fibers into the air and onto players' skin.

Synthetic running tracks are made from polyurethane or recycled rubber compounds that also shed particles during use.

What the research says

A 2026 study measuring airborne microplastic emissions from synthetic sports surfaces found elevated microplastic and particle levels in the breathing zone of athletes on these surfaces. Vigorous physical activity, which increases breathing rate, means athletes inhale more particles per minute than they would at rest.

Soccer goalkeepers and players who fall and make contact with the surface frequently have the highest exposure. Children playing on synthetic turf are exposed during a window when their lungs and developing systems are more vulnerable to airborne particles.

Playing on natural grass fields eliminates tire crumb rubber exposure entirely. If your child plays on synthetic turf regularly, removing shoes before entering the home and showering after play reduces how much crumb rubber comes inside.