Silicosis is a form of lung disease not unlike mesothelioma which is commonly associated with asbestos exposure. For many years workers have been doing their best to reduce their exposure to asbestos dust and fibres by using procedures and PPE mandated by legislation.
However, recently a ‘new’ threat has emerged that almost anyone who has worked in construction would have been exposed to, especially if they do not use PPE and other harm reduction techniques.
While silicosis is currently in the news and being targeted by regulators, it has been known since ancient Greek times that breathing in the dust of stone and other construction materials causes breathing and lung issues.
What products is silica found in?
Some of the common products used on construction sites that have silica in them include (but are not limited to):
• Pre-blended bagged cement
Many products contain silica but possess no risk of damage to workers if they are not cut, drilled or grinded because it is the dust that causes the silicosis when it is inhaled into the lungs.
What are the symptoms of Silicosis?
Some of the symptoms of silicosis include:
• A cough that won’t go away
• Trouble breathing
• Consistent excessive phlegm
• Loss of appetite
Like asbestos exposure you don’t need to have long term exposure to silica dust to have the risk of contracting silicosis. Any amount of exposure can result in lung damage. There are three main types of exposure.
Acute – Symptoms develop from a couple of weeks to two years after exposure to high levels of silica
Chronic – Symptoms develop after many years of low to medium levels of exposure to silica
Accelerated – Symptoms develop five to ten years after regular heavy exposure to silica
Who is at risk of developing Silicosis?
While regulators have been putting increasing pressure on stone masonry companies to ensure compliance, those in other trades in the construction industry are also at significant risk of being exposed daily to silica, and as such developing silicosis.
Trades most likely to be exposed include:
• Brick and blocklayers
While those tradespeople are most likely to be exposed in close quarters to the silica dust, carpenters, builders and labourers will also be exposed due to the dust hanging in the air and settling on work surfaces. This means that all workers on site may be exposed to harmful contaminants on your work site.
How can Silicosis be prevented?
Silicosis can be prevented by preventing worker exposure to the dust.
You can do this in a number of ways, including:
• Use water to suppress the dust
• Try to order materials pre-cut to the correct size
• Use on tool dust extractors
• Work in isolation so other workers are not exposed
• Use appropriate PPE (face masks/respirators)
• Don’t eat, drink or smoke in dusty areas
• Remove dust from work clothing before going home
• Keep work vehicles clean of dust as much as possible
Remember ignorance is not a defence, ensure all your workers are aware of what is expected on your worksite, and that you have evidence that you have communicated that to them effectively.