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Black Lung Prevalence Rose Among U.S. Coal Miners

New study data from 1974 through 2025 shows rising respiratory illness rates in Appalachian mining communities.

Updated on Sept. 30, 2026 in Asthma

Rugged coal mine floor with scattered chunks of black coal and light-colored silica-rich rock, captured in a detailed close-up shot.
A recent study by the National Institute for Occupational Safety and Health shows that black lung disease rates have risen among coal miners as mining practices shift toward silica-heavy seams. AI Illustration. Upload story photo >

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A study by the National Institute for Occupational Safety and Health revealed that coal workers' pneumoconiosis rates have increased among underground miners since 2000. In central Appalachia, 33% of miners tested positive for the condition in the most recent five-year period.

Why it matters

The rise in black lung disease is linked to mining thinner coal seams, which requires cutting into silica-rich rock. Chronic exposure to this crystalline silica dust is a primary driver of the incurable respiratory condition.

A recent study found 33% of central Appalachian miners tested positive for black lung disease, a significant increase from the 5% prevalence recorded in 2000. Exposure to respirable crystalline silica remains the primary cause of the condition.

The players

National Institute for Occupational Safety and Health

This federal agency is responsible for conducting research and making recommendations for the prevention of work-related injury and illness.

Robert F. Kennedy

He is a political figure who oversaw the layoff of 873 employees at the National Institute for Occupational Safety and Health.

Andy Beshear

He is the Governor of Kentucky who petitioned federal leadership for increased health support for coal miners.

Mine Safety and Health Administration

This agency is a division of the U.S. Department of Labor that enforces safety and health regulations in the mining industry.

The details

Mining practices have shifted toward thinner coal seams, forcing miners to cut through greater amounts of silica-rich quartz. This trend, combined with federal administrative changes including staff layoffs and the closure of 34 MSHA offices, has complicated health surveillance efforts.

Timeline

  1. 1974: The CWHSP began surveillance of miners' health.

  2. 1977: Congress passed the Federal Mine Safety and Health Act.

  3. 2000: Prevalence of coal workers' pneumoconiosis fell below 5%.

  4. March 2025: The Department of Labor closed 34 MSHA offices.

  5. September 24, 2026: Governor Andy Beshear requested expanded benefits.

Health Landscape

The current increase in disease prevalence marks a significant departure from the health improvements intended by the Federal Coal Mine Health and Safety Act of 1969. This trend indicates that the legacy legal framework is struggling to address the dangers of modern silica exposure.

Miners in the affected regions face a higher risk of developing incurable respiratory conditions that require long-term medical management. This shift necessitates earlier health screenings and may impact eligibility for federal coal mine disability benefits.

The takeaway

The rise in black lung disease serves as a reminder of the persistent physical toll of coal mining despite decades of regulation. Workers are encouraged to prioritize routine health screenings to identify respiratory issues as early as possible.

Further reading

For additional context on respiratory health trends, visit the Asthma section.

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Should the federal government prioritize stricter safety regulations for industrial workers over deregulation efforts?