Work environment and safety in masonry

Bricklaying is one of the most physically demanding trades. It is also one where the most serious injuries are invisible in the short term: the dust you inhale today and the wet cement you touch set only decades later. Occupational health is therefore not bureaucracy but the only way to keep a whole working life in the profession. Four hazards dominate: respirable quartz dust, wet cement/mortar, heavy lifting and working at height.

Bricks, concrete, mortar, tiles and aerated concrete contain crystalline silicon dioxide (quartz). When you cut, grind, drill or break down these materials dry, a fine, respirable fraction is released — particles so small they penetrate right into the lung alveoli, where the body cannot get rid of them. Over time they give silicosis (stone lung), COPD and increased risk of lung cancer. Crystalline quartz is by IARC classified as carcinogenic to humans (group 1), and the dust cannot be seen or smelled in dangerous concentrations.

Protection is built according to the STOP principle: remove the source, use technical solutions, organise the work — and only last personal protective equipment. The order is not by chance: a respirator is the last, not the first, line of defence.

• 01Wet rather than dry — cut and grind with water supply, so dust binds, instead of dry-cutting with angle grinder.
• 02Point extraction — use a tool with built-in suction connected to a dust extractor in dust class H (for hazardous/carcinogenic dust), not an ordinary workshop vacuum.
• 03Respiratory protection — where dust cannot be avoided, at least FFP3 / P3 filter; stubble and poor fit ruins the seal.
• 04Clean up wet or with H-suction — never sweep up dry quartz dust, it just whirls the fraction up again.
• 05Separate clean and dusty work — avoid colleagues without protection staying in the dust zone.

Wet cement and mortar are strongly alkaline — pH around 12–13 — and act as corrosive to skin and eyes. Long-term contact causes irritative cement eczema, and cement also contains water-soluble chromium (VI), which can cause lasting contact allergy (allergic cement eczema). To limit allergy, the content of water-soluble chromium (VI) in cement is EU-regulated to a maximum of 2 ppm (0.0002 % of dry cement), ensured by the addition of a reducing agent with limited shelf life (declared storage time).

• 01Always wear gloves (nitrile/rubber) with wet mortar and concrete — not just cotton gloves that absorb cement water into the skin.
• 02Rinse skin and especially eyes immediately and thoroughly if in contact with wet cement; the etching develops slowly and is often discovered too late.
• 03Use cement within the declared shelf life (the life of chromium reduction).
• 04Once you develop contact allergy to chromium (VI), it is permanent — prevention is the only protection.

Bricks, mortar pans, blocks and tiles are lifted thousands of times a day, and it is the total load — weight times distance from body times number of lifts — that wears on back, shoulders and knees. The Labour Inspection Authority never judges a single lift on weight alone, but the indicative limits for when technical aids must be used under otherwise good conditions are clear: