Black lung cases increasing among US coal miners - MINING.COM - MINING.com

Researchers found higher levels of silica dust in the lung tissue of contemporary coal miners compared to the lung tissue of previous generations of coal miners.

The study points out that from 1970 to 2005, the rate of black lung cases among coal miners had been declining, largely due to improved occupational health practices required by federal regulations. … [+2007 chars]

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