Safety Concerns of Rubber Mulch on a Playground
Rubber mulch, a common cushioning surface for playgrounds, is the subject of concern over its effects on environmental and public health. The U.S. Environmental Protection Agency says more research is needed to determine the extent of potential danger.
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Description
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Rubber mulches are often made of recycled tires, which are ground up for loose mulch or mats. Rubber mulch is one of the longest-lasting mulches available, lasting up to 10 years or more.
Chemical Content
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Environment and Human Health, Inc. has raised concerns about high levels of zinc, benzene, phthalates and other contaminants in the recycled tires used for rubber mulch. However, rubber mulches designed for playground use must meet guidelines for non-toxicity, and manufacturers insist they are safe.
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Environmental And Public Health
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However, a study released by the United States Environmental Protection Agency in 2009 found higher-than-background-level concentrations of particulate matter and metals at one playground site using rubber mulch, but other tests of volatile organic compounds and lead showed no increase over background levels, and the concentrations were still below safety limits. The EPA recommends further study.
Fall Safety
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Rubber mulches for playground use are tested for the ability to cushion falls. The shock absorption capability of rubber mulch is greater than other types of playground surfaces, according to Rubber Mulch Products of Bargersville, Indiana.
Choking Hazards
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Playgrounds surfaced with loose rubber mulch, rather than mats, may have small rubber mulch pieces that a child could swallow. Small children should always be supervised during play.
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