Silica is not picky about where it harms you. The all-island campaign run by the Health and Safety Authority and the Health and Safety Executive Northern Ireland is making that point loudly, and the industries showing up in the data are not all the ones you'd expect.
Construction gets the headlines. Groundworkers cutting kerbs, concreters grinding floors, demolition crews knocking out old brickwork. That narrative is accurate and it matters. But it has created a blind spot. Managers in manufacturing, renovation, and quarrying have spent years assuming silica dust is someone else's problem. It is not. Respirable crystalline silica, the fine fraction that gets deep into lung tissue and stays there, is present anywhere workers cut, grind, crush, or disturb silica-bearing materials. That includes a lot of places that have never once run a dust exposure assessment.
The damage is not reversible. Silicosis, the fibrotic lung disease caused by silica exposure, does not show up on a Monday morning after a bad shift. It shows up ten or twenty years later, by which point the scarring is permanent and the options are limited. That delay is exactly why so many employers have been comfortable ignoring it. Nothing happened. Nothing visible happened yet.
Renovation Is Not a Soft Target
Renovation work sits in a grey zone that the campaign is now shining light on. Knocking out a tiled bathroom, cutting through a block wall to install a door, or grinding back a concrete floor before a new screed goes down: all of these release respirable crystalline silica. The problem is that renovation is often done by small crews, sometimes sole traders, in occupied or semi-occupied buildings with no site-level dust controls.
Old ceramic tiles, sandstone features, concrete blocks, and fibre cement sheeting all contain significant silica levels. A single day of dry cutting with an angle grinder in an unventilated kitchen generates exposures that blow past the occupational exposure limit of 0.1 mg/m³ without a suppression system in place. Most renovation workers are not measuring. Most renovation employers are not asking.
Manufacturing Has Its Own Exposure Routes
Ceramic and pottery manufacturing, brick and tile production, and stone product finishing all involve silica at process level. So does the production of glass, abrasives, and certain rubber or plastic compounds that use silica as a filler. Workers in these environments often have consistent, long-duration exposure rather than the intermittent spikes you see on construction sites.
The engineered stone ban came directly out of the recognition that cutting and polishing engineered benchtops, a manufacturing and installation process, was producing silica concentrations that were killing young workers in years rather than decades. The benchtop fitting sector is not construction in the traditional sense. It did not see itself as a silica industry. It was.
Foundry work is another area the campaign flags. Casting sand used in metal foundries is largely silica sand. Shakeout operations, where castings are separated from the mould, produce very high dust concentrations unless controls are aggressive and consistent.
Demolition: The Underestimated End of the Chain
Demolition gets grouped with construction but operates differently in practice. The materials being broken down are often older, denser, and silica-heavy. Concrete, clay brick, natural stone, and old render all contain crystalline silica. Demolition work also tends to be faster-paced and less structured than new build. Controls get deprioritised when the goal is to clear the site quickly.
The campaign has been explicit that demolition roles carry some of the highest silica exposure profiles of any trade. A worker using a breaker to open up old concrete without water suppression or local exhaust ventilation is generating a dust cloud that no FFP3 mask alone will reliably manage over a full shift.
Quarrying and Surface Mining
Quarry workers have known about silica for a long time, at least officially. Silica-bearing rock is the entire business model of a quarry. Drilling, blasting, crushing, and screening all release respirable crystalline silica. The regulatory framework covers it. The exposure limits apply. The question is whether controls are actually working.
The all-island campaign has been checking exactly that. Dust suppression on crushers, water on drill rigs, cab filtration on mobile plant, and personal monitoring for workers who cannot be adequately protected by engineering controls alone. Awareness is not the same as compliance, and compliance on paper is not the same as exposure actually being controlled.
What the Campaign Is Actually Requiring
The campaign is not a leaflet drop. Inspectors from the HSA and HSENI are visiting workplaces, reviewing risk assessments, checking whether silica-generating tasks have been identified, and asking for evidence that the hierarchy of controls has been applied. That means:
- Elimination or substitution considered first, using low-silica materials where possible
- Engineering controls next, on-tool extraction, water suppression, enclosed cabs
- Organisational controls, rotating workers, limiting time in high-exposure zones
- Respiratory protective equipment last, not first
Occupational lung disease from silica exposure is irreversible once established. That makes prevention the only viable strategy. An FFP3 mask handed to a worker cutting dry with an angle grinder is not a control plan. It is the absence of one dressed up in PPE.
Health surveillance is also part of the picture. Workers with regular silica exposure need periodic lung function checks and chest reviews, not as a box-ticking exercise but because early detection of lung changes is the only point at which clinical intervention has any meaningful effect.
The Industries That Need to Act Now
If your workplace involves any of the following, and you have not completed a specific silica dust risk assessment, the campaign is coming for you eventually:
Stone fabrication and monumental masonry. Brick, block, and paving laying. Ceramic manufacture and glazing. Foundry work. Road surfacing using silica aggregate. Demolition of concrete or masonry structures. Renovation and refurbishment involving cutting or grinding of concrete, tiles, or block.
The conversation about silica spent too long living only in the construction sector. The all-island campaign is ending that. The industries above are not peripheral cases. They are the next phase of enforcement attention, and the workers in them deserve the same level of protection that the sector has been, imperfectly but increasingly, trying to provide.
The dust does not care what your SIC code is. Neither will the inspector.
