In 2008, the Richard Montgomery High School posted a Power Point presentation on their website that was to "sell" the public on the construction of an artificial turf professional sized soccer field at the high school.
The Power Point included the following fun fact about the 120 tons of crumb rubber (ground up tires) that would be used to fill in the artificial turf stadium field:
"The human body is unable to digest the rubber material contained in the infill. Any ingested rubber will pass right through the human digestive system."But, as it turns out, that slide was fiction. Kids, please don't eat the crumb rubber.
OEHHA calculated a cancer risk of 1.2 in 10 million based on a one-time ingestion of the tire crumb rubber over a lifetime.
OEHHA also conducted a gastric digestion experiment that found 22 chemicals were released. Five of the chemicals released were carcinogens.