continuous personal dust monitor

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Coal mining industry insisted on new dust sampling technology, now they don’t want MSHA to use it

It’s too late for Ronald Martin of Dema, Kentucky. “I’m in last stage of black lung,” he wrote in shaky script, “please help the miners so they won’t suffer like I suffer. I can’t breathe but a little.” Mr. Martin sent his note to the Labor Department’s Mine Safety and Health Administration (MSHA) to comment…