Chronological coverage updated 12th September 2026 12:00.
Update 1 · 12th September 2026
US Industry Groups Challenge Stricter Workplace Silica Dust Rules as Lung Disease Rises
Decades after public health standards identified methods to eliminate occupational lung disease, cases of progressive silicosis and black lung are accelerating among younger demographics across North America.
In central Appalachia, healthcare providers report coal miners developing severe black lung disease in their 40s, contrasting with historical trends where symptoms typically manifested after decades of underground work.
The Guardian reportedly quoted John Robinson (former coalminer from south-west Virginia diagnosed with black lung at age 47) as saying: “At one time, you didn’t say black lung around the coal site unless you wanted to lose a job. It’s such an outbreak right now they can’t hide it.”.
Legal battles over federal dust standards
Parallel outbreaks have emerged among engineered-stone countertop fabrication workers, largely affecting Hispanic and immigrant labourers in states including California, Colorado, and Texas. Inhaling microscopic crystalline silica dust during cutting, grinding, and polishing causes irreversible pulmonary fibrosis and fatal respiratory failure.
A 2024 rule issued by the Mine Safety and Health Administration (MSHA) aimed to cut the permissible exposure limit (PEL) for respirable crystalline silica from 100 micrograms per cubic meter down to 50 micrograms per cubic meter over an eight-hour shift.
However, industry groups—including the National Stone, Sand & Gravel Association (NSSGA) and the American Exploration & Mining Association (AEMA)—petitioned federal courts to block the regulation. Following a stay granted by the Eighth Circuit Court of Appeals, MSHA confirmed it would reconsider disputed components of the rule.
The Guardian reportedly quoted Mark Compton (executive director of the American Exploration & Mining Association) as saying: “We joined the petition challenging the 2024 silica rule because the rule would actually undermine miner safety and health due to the restrictions Msha imposed on its implementation”.
Industry advocates contend that mandatory engineering controls are not always economically or technically feasible across variable worksites, arguing that regulators should permit administrative job rotations and respirators to meet lower exposure thresholds.
- A federal court stayed MSHA's 2024 silica exposure rule following industry petitions.
- Younger workers in mining and countertop fabrication face rising rates of severe silicosis.
- Industry groups advocate for flexible controls and respirators over mandatory site engineering modifications.
