There’s a cruel irony at the heart of silicosis: it’s one of the oldest occupational diseases in the world, and one of the most preventable — yet workers are still dying from it today. Right now, in countertop fabrication shops, quarries, construction sites, and foundries across the country, people are breathing in something invisible that is quietly destroying their lungs. By the time they know it’s happening, the damage is already done.

This is the story of silicosis — what it is, who it’s killing, what technology can stop it, and why employers have both a legal and moral obligation to act.

What Is Silicosis?

Silicosis is a disease caused by inhaling tiny particles of crystalline silica — the mineral found in sand, quartz, granite, concrete, brick, mortar, and a host of other common materials. When those microscopic particles enter the lungs, the body tries and fails to destroy them. Instead, scar tissue builds up around the particles, stiffening the lungs over time and progressively robbing them of their ability to transfer oxygen into the bloodstream.

The progression can be slow and sneaky. Early-stage silicosis may produce no symptoms at all. By the time a worker notices persistent shortness of breath, fatigue, or chest pain, the disease may already be advanced. There is no cure. There has never been a cure. The only treatment is managing symptoms — and, in the worst cases, a lung transplant.

Silicosis also opens the door to other killers. According to the U.S. Occupational Safety and Health Administration (OSHA), inhaling respirable crystalline silica can cause not just silicosis but lung cancer, chronic obstructive pulmonary disease (COPD), and kidney disease. Workers with silicosis are also far more susceptible to tuberculosis than the general population.

The Scale of the Problem

This isn’t a minor or fringe occupational hazard. According to a 2025 study published in the Journal of Thoracic Disease and based on the Global Burden of Disease Study 2021, silicosis causes more than 12,900 deaths every year worldwide, and an estimated 230 million people are exposed to crystalline silica annually — around 40.5 million of them in the mining industry alone.

In the United States, OSHA estimates that nearly 2.3 million workers are exposed to crystalline silica on the job, including more than 100,000 in high-risk roles like abrasive blasting, foundry work, stonecutting, rock drilling, and tunneling.

What makes the current moment especially alarming is a new wave of silicosis cases tied to engineered stone — the quartz-composite material used in high-end kitchen and bathroom countertops. Engineered stone can contain silica concentrations of up to 93%, far higher than natural granite or sandstone. Cutting, grinding, or polishing it without proper dust controls releases enormous quantities of respirable silica into the air.

A 2025 surveillance study published in the American Journal of Public Health by researchers at the California Department of Public Health found that from 2019 to 2024, California alone confirmed 296 cases of silicosis, with 243 of them — a striking 82% — linked to engineered stone. Of those engineered stone cases, at least 15 workers had died, and 60 had been referred for lung transplants.

Perhaps the most heartbreaking aspect of this emerging epidemic is who it’s hitting. A 2024 study led by the Department of Occupational Lung Disease at the Royal Brompton Hospital found that silicosis patients linked to engineered stone had an average age of just 34 years old. These aren’t workers nearing retirement after decades of cumulative exposure. These are young people — many of them Latino immigrants in California — who are developing end-stage lung disease in their thirties.

As Dr. Ryan Hoy, lead author of a related Australian study, put it:

“The stone benchtop industry is a multi-billion-dollar industry, employing hundreds of thousands of workers internationally.” — Dr. Ryan Hoy

The profits are enormous. The dust controls, in too many workplaces, are not.

Where Silica Dust Comes From

It’s worth understanding just how many industries put workers at risk. Silica exposure is not limited to mining or quarrying. OSHA identifies high-risk activities that include:

  • Cutting, sawing, grinding, or drilling stone, concrete, brick, or mortar
  • Sandblasting and abrasive blasting
  • Foundry work and metal casting
  • Cement and asphalt manufacturing
  • Pottery and ceramics
  • Glass manufacturing
  • Countertop fabrication (especially engineered stone)
  • Construction and demolition work

The dust particles responsible for the damage are extraordinarily small — typically at least 100 times smaller than ordinary beach sand. They’re invisible to the naked eye, which is part of what makes them so dangerous. A worker may feel completely fine in a cloud of silica dust, with no irritation, no coughing fit — nothing to signal that something lethal is entering their lungs.

The Technology That Saves Lives: Fume and Dust Extraction

The good news — and there genuinely is good news here — is that OSHA is right when it states that silicosis is 100% preventable. The tools and technology to protect workers exist right now. The question is whether employers choose to use them.

Central to any effective silica dust control program is local exhaust ventilation (LEV), which includes fume and dust extraction machines. These systems work by capturing dust and airborne particles at the point where they’re generated — before they ever have a chance to travel toward a worker’s breathing zone. Think of it as putting a vacuum around the danger itself.

Modern dust extraction units designed for silica work typically include:

  • High-efficiency filters (HEPA or equivalent) capable of capturing particles as small as 0.3 microns
  • Integrated vacuum systems for power tools like grinders, drills, and saws
  • Shrouded or enclosed tool attachments that surround the cutting surface and direct dust into the extraction system
  • Wet suppression integration, where water is added at the cutting point to bind dust before it becomes airborne

OSHA’s crystalline silica standards, which were updated in 2016, require employers to use engineering controls — including ventilation and wet methods — as the primary means of reducing workers’ exposure. The permissible exposure limit (PEL) for respirable crystalline silica is set at 50 micrograms per cubic meter of air, averaged over an eight-hour workday. That’s a very small amount. Without proper extraction equipment, many common tasks generate silica concentrations many times higher than the PEL.

In practice, this means that for workers cutting engineered stone or concrete, a dust extractor connected to the tool isn’t optional — it’s the law. A grinder equipped with a shroud and connected to a vacuum with an appropriate filter can reduce airborne silica concentrations by more than 90% compared to using the same tool without controls.

When engineering controls alone aren’t sufficient to bring exposures below the PEL, employers must also provide properly fitted respirators — specifically, at minimum, an N95 respirator rated for particulate filtration, or better, a half-face or full-face respirator with P100 filters. Crucially, respirators are considered a last line of defense, not a substitute for proper ventilation and extraction.

What Employers Are Required to Do

Under OSHA’s crystalline silica standards (29 C.F.R. § 1910.1053 for general industry and § 1926.1153 for construction), employers have a clear and legally binding set of obligations:

1. Establish a written exposure control plan. Employers must identify all tasks involving silica exposure, document the controls being used, and designate a competent person to implement the plan.

2. Use engineering controls first. Employers must implement feasible engineering controls — extraction systems, wet methods, process enclosure — to keep workers’ exposure at or below the PEL. Respiratory protection alone is not acceptable as a primary control.

3. Monitor exposure levels. Employers must assess whether workers’ exposure to silica meets or exceeds the action level (25 µg/m³) and, if so, implement medical surveillance.

4. Provide medical surveillance. Any worker exposed at or above the action level for 30 or more days per year is entitled to free medical exams — including a chest X-ray, lung function test, and evaluation by a licensed health care provider — within 30 days of initial assignment and periodically thereafter.

5. Provide training. Workers must be trained on the health hazards of silica, the specific tasks that generate exposure in their workplace, and how to use the controls provided.

6. Keep records. Exposure measurements and medical surveillance records must be maintained and made available to workers and OSHA upon request.

Failing to meet these requirements isn’t just an ethical failure — it’s a violation that can result in substantial OSHA fines, civil liability, and, in egregious cases, criminal prosecution. But far more importantly, failing to protect workers from silica dust means sending people home with a disease that will slowly suffocate them.

What Workers Can Do

While the primary responsibility rests with employers, workers aren’t powerless. A few practices make a real difference:

  • Never dry sweep or use compressed air to clean up silica-containing dust — this puts it back into the air. Use wet methods or a HEPA-filtered vacuum instead.
  • Always use the dust controls provided — extraction systems, wet saws, enclosures — even when they feel cumbersome.
  • Wear your respirator properly. A poorly fitted respirator offers little protection. Make sure yours has been fit-tested.
  • Participate in medical surveillance if offered — early detection matters enormously.
  • Know your rights. It is your employer’s legal responsibility to provide a safe workplace. If you believe you’re being exposed to silica without adequate controls, you can file a confidential complaint with OSHA at 1-800-321-OSHA (6742).

The Bottom Line

The story of silicosis doesn’t have to end in tragedy. Unlike many occupational diseases, this one comes with a genuinely hopeful truth attached to it: silicosis is 100% preventable. The technology exists, the standards are clear, and the path forward is well-lit.

Dust extraction systems, wet cutting methods, proper respiratory protection, and consistent medical surveillance aren’t experimental or out of reach — they’re proven, available, and increasingly affordable. For employers in high-risk industries, investing in these controls is one of the most straightforward ways to make a real difference in the lives of the people who show up to work every day.

And when employers get it right, everyone wins. Workers go home healthy. Businesses avoid the enormous human and financial costs of occupational illness. Industries build reputations as places where skilled people want to work and build long careers.

If you’re an employer or safety officer, now is a great time to review your silica exposure control plan, walk the floor with fresh eyes, and ask whether your dust controls are genuinely protecting your team. If you’re a worker with concerns about silica exposure at your job, OSHA’s resources at osha.gov are a solid starting point — and their helpline at 1-800-321-OSHA (6742) is there for you.

The tools to end silicosis as a public health threat are in our hands. That’s not a small thing — it’s actually remarkable. Let’s use them.

Works Cited

  1. Zhang et al. “Burden of silicosis based on the Global Burden of Disease Study 2021: trend analysis of incidence, mortality, and disability-adjusted life years, and projections for the next 30 years.” Journal of Thoracic Disease, February 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC11898348/
  2. Flattery, Jennifer, et al. “Silicosis Surveillance in California, 2019–2024: Tracking an Epidemic.” American Journal of Public Health 115, no. 11 (November 2025): pp. 1913–1921. https://ajph.aphapublications.org/doi/10.2105/AJPH.2025.308225
  3. “Engineered stone: managing a deadlier kind of dust.” British Safety Council, May 2025. https://www.britsafe.org/safety-management/2025/engineered-stone-managing-a-deadlier-kind-of-dust (Citing Dr. Ryan Hoy, lead author, Australian countertop silicosis compensation study.)
  4. U.S. Occupational Safety and Health Administration. “Crystalline Silica Exposure in General Industry.” https://www.osha.gov/training/library/silica/general-industry
  5. U.S. Occupational Safety and Health Administration. “Silica, Crystalline — Frequently Asked Questions on the New Silica Standards.” https://www.osha.gov/silica-crystalline/background-info
  6. U.S. Occupational Safety and Health Administration. “Tips for Workers Exposed to Crystalline Silica.” https://www.osha.gov/training/library/silica/handout
  7. U.S. Occupational Safety and Health Administration. “1910.1053 — Respirable Crystalline Silica.” https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1053
  8. Kelley, et al. “A Brief Review of Silicosis in the United States.” Environmental Health Insights, 18(2), October 2024. https://bioone.org/journals/environmental-health-insights/volume-18/issue-2/EHI.S4628/
  9. Atraxia Law. “Silicosis Cases Are Climbing After Decades of Decline.” March 2026. https://www.atraxialaw.com/news/silicosis-cases-are-climbing/