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The smaller values of Rscale in Fig. 7 suggest that resuspension would occur from local surfaces, such as the playground surface, and that the deposition speeds of the host particles were high in winter/spring.
There were 10 children (0.9%) that fell from a height > 6 m (> 19.6 ft); this included three children 1 2 years old (0.3%) who fell from balcony or building structures, six children 2 4 years old (0.6%) who fell from windows at least two stories high, and one 4-year-old child (0.1%) who fell from a playground surface (trampoline).
As for the tire crumb product, several potential advantages exist in its use as a playground surface amendment.
The tire crumb product has been studied for safety in its intended use as a playground surface amendment using the methods of risk assessment, genotoxicity assays, and ecotoxicity assays.
Physicians and public health professionals working with the U.S. Environmental Protection Agency's Region 8 Pediatric Environmental Health Specialty Unit (PEHSU) received several telephone calls requesting information regarding the safety of recycled tire crumb as a playground surface constituent placed below children's play structures.
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A Missouri law provides grants for nonprofit organizations to purchase rubber playground surfaces.
"There are only so many playground surfaces that need soft pads, landfills that need drainage material, and roads that need resurfacing -- some of the variety of reused tire.
The rubber mats used on many playground surfaces can reach well over 100 degrees, said Mr. Kellner, who cited studies done by park safety advocacy groups.
Michael McGuffie, the owner of New England Bark Mulch and Playground Surfacing in Winsted, has already increased his prices by more than 5percenttoto make up for the added cost of running 30 trucks.
And our efforts to improve the way our children move through the world, with safer playground surfaces, the aforementioned helmets and car seats, and rails and guards on stairs and beds appear to be working.
To reduce playground injuries, parents/caregivers should increase supervision of young children on playground surfaces.
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