Safety standards set for school tracks, turf
Safe limits of dangerous chemicals emitted by synthetic running tracks, playgrounds and artificial turf have been specified for the first time in new standards for schools in Zhejiang province.
Students at several primary and middle schools fell ill and the synthetic materials used for the running tracks and artificial grass were suspected culprits.
Summer heat has been cited as a possible cause of increased chemical emissions from synthetic materials. Under the standards, a group of five teachers, parents and experts will assess odors at school facilities regularly.
They will rate odors on a 1-5 scale, with 1 meaning no odor and 5 signifying strong, pungent odor. If three of the five reach a consensus at 3 or above, the running track will be closed.