What Is Silicosis? The Disease Killing Countertop Workers
Silicosis is an irreversible lung disease caused by inhaling crystalline silica dust. It cannot be cured, only managed. Workers diagnosed in their 20s and 30s face a lifetime of deteriorating lung function — and sometimes early death.
Medically reviewed reference · Updated March 2026
At a Glance
- ICD-10 Code: J62.8 (Pneumoconiosis due to other dust containing silica)
- Cause: Inhaling respirable crystalline silica particles (quartz dust)
- Is it curable? No. Silicosis is irreversible and often progressive.
- Affected workers: Countertop fabricators, miners, construction workers, sandblasters
- New epidemic: Young countertop workers (20s-30s) developing silicosis at epidemic rates
- Outcome: Can progress to total respiratory failure; some patients require lung transplants
What Causes Silicosis?
Silicosis is caused by inhaling tiny particles of crystalline silica — a mineral found naturally in stone, sand, and quartz. When stone is cut, ground, or polished, these particles become airborne. The particles are too small to see and too fine to feel — you can inhale a dangerous dose without knowing it.
Once inhaled, crystalline silica particles travel deep into the lungs' air sacs (alveoli). The immune system attempts to destroy them — but it cannot. Instead, the immune response causes the formation of scar tissue (fibrosis) around each particle. Over time, the accumulating scar tissue stiffens the lungs, progressively reducing their ability to move oxygen into the blood.
Engineered stone countertops are particularly dangerous because they contain 90-95% crystalline silica. When cut or polished, they produce extremely high concentrations of fine silica dust — far more than natural stone or traditional silica-containing materials.
The Three Stages of Silicosis
1. Chronic Silicosis
Develops after: 10+ years of exposure to lower silica concentrations
The most common form, historically associated with miners and construction workers. Lung nodules develop slowly. In early stages, patients may be asymptomatic or have only mild symptoms. Over years, progressive shortness of breath develops. Can progress to PMF (progressive massive fibrosis).
2. Accelerated Silicosis
Develops after: 5-10 years of high-level exposure
More aggressive form. Symptoms develop faster and disease progression is more rapid than chronic silicosis. Associated with high silica exposures. Common in engineered stone workers due to the extremely high silica content of the material. Workers in their 30s are being diagnosed with this form.
3. Acute Silicosis
Develops after: Weeks to 5 years of very heavy silica exposure
The most severe and rapidly progressing form. Often rapidly fatal. The lungs fill with a protein-rich fluid (pulmonary alveolar proteinosis). Associated with massive silica exposures — the type seen in countertop fabrication shops without dust controls. Several California engineered stone workers developed acute silicosis within 2-3 years of starting fabrication work.
Progressive Massive Fibrosis (PMF)
Progressive Massive Fibrosis (PMF) is an advanced, end-stage complication of silicosis. Large masses of scar tissue form in the lungs, consolidating individual silicosis nodules. PMF is associated with severe respiratory disability, cor pulmonale (right-sided heart failure due to lung disease), and early death.
PMF was historically rare in the general population. Among engineered stone countertop workers, it is appearing at alarming rates and at very young ages. Several documented cases in California and Australia involved workers developing PMF requiring lung transplants in their late 20s and 30s.
Symptoms of Silicosis
Silicosis symptoms often develop gradually and may not appear for years after exposure begins. By the time symptoms are noticeable, significant lung damage has already occurred.
- Shortness of breath — especially during physical activity; worsens over time
- Persistent cough — often dry, may produce phlegm as disease progresses
- Fatigue and reduced exercise tolerance
- Chest tightness or pain
- Cyanosis — bluish tint to lips or fingertips in advanced disease (sign of oxygen deprivation)
- Respiratory failure in severe/advanced cases
In acute silicosis, symptoms may appear rapidly: severe shortness of breath, cough, weight loss, and fever within months of exposure.
Silicosis also increases susceptibility to tuberculosis (TB) and lung cancer. Workers with silicosis face a significantly elevated risk of both.
How Is Silicosis Diagnosed?
Diagnosis typically involves:
- Occupational history — establishing exposure to silica-containing materials, especially engineered stone
- Chest X-ray — shows characteristic small nodules in upper lung zones; may miss early disease
- CT scan (high-resolution) — more sensitive than X-ray; can detect silicosis nodules before symptoms develop and identify PMF masses
- Pulmonary function tests (PFTs) — measure lung capacity and airflow; show restriction and reduced diffusion capacity in silicosis
- Bronchoscopy / biopsy — may be used in complex cases to confirm diagnosis
If you worked with engineered stone and have any breathing symptoms, see a pulmonologist (lung specialist) and specifically mention your occupational history. Tell your doctor you worked with quartz or engineered stone countertops.
Is There Treatment for Silicosis?
There is no cure for silicosis. Treatment focuses on:
- Stopping further silica exposure (most critical)
- Pulmonary rehabilitation
- Bronchodilators for symptom relief
- Treatment of complications (TB, infections)
- Supplemental oxygen in advanced disease
- Lung transplant — the only option for end-stage disease in young patients
Because silicosis is irreversible and progressive, early detection and removal from exposure is critical. Workers who know they've been exposed should seek pulmonary evaluation even before symptoms develop.
Have You Been Diagnosed With Silicosis After Stone Work?
If you developed silicosis or another lung disease after working with engineered stone countertops, you may have a right to compensation against the manufacturers. Free case evaluation — 2 minutes.
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