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Yeah, protect your pockets if theya re deep. On bags of sand (for mixing with cement, for example) there is a warning to wear respiratory protection, to protect against silicosis. Osha mandates it. It is probably good advice. What's the risk to most users? (permissible exposure level) How is dumping a bag of sand and breathing the dust much different from spending a windy day at the beach?
Are we seeing a lot of silicosis from habitual beachcombers?
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