Construction work is physically demanding, but one of its biggest health threats is invisible: carcinogenic substances in dust, fumes, and materials handled every day. Across the EU, work-related cancer remains the leading cause of occupational death, and construction is consistently identified as one of the highest-risk sectors. It accounts for more occupational cancer cases than any other industry, with thousands of cancer deaths and new registrations recorded annually.
Asbestos, silica dust and diesel exhaust: old and new threats
Asbestos is the industry’s best-known carcinogen: still present in the insulation, roofing, and floor tiles of older buildings, it remains responsible for tens of thousands of deaths in the EU every year, mostly from work done decades ago. But the risks on site today go further. Cutting, grinding, or drilling concrete, brick, and stone releases respirable crystalline silica (RCS), a known cause of lung cancer and silicosis. Exhaust from diesel-powered machinery on site is another major concern: it is classified as a Group 1 definite human carcinogen by the International Agency for Research on Cancer, causing lung cancer and, with limited evidence, bladder cancer. Experts increasingly expect silica, diesel fumes, solar (UV) radiation, and welding fumes to become the leading causes of occupational cancer in construction as asbestos use continues to decline.
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Start with the risk assessment
Before any protective measure is chosen, the law requires a risk assessment: a documented check of which carcinogens are present on a specific site, how workers might be exposed, and how severe that exposure could be. This is not optional. It is mandatory for employers under the EU Carcinogens, Mutagens and Reprotoxicants Directive, and it forms the basis for every decision that follows: which substances need substituting, which technical controls are needed, and which tasks require personel protective equipment (PPE). A good risk assessment is repeated whenever work, materials, or site conditions change.
What actually protects you
Once the risks are mapped, protection follows a strict hierarchy, and personal protection is the last line of defence.
Substitution. Obviously, replacing hazardous materials or processes with safer alternatives is the best option to avoid exposure to dangerous substances. Whenever possible, employers have to replace carcinogenic substances by less dangerous ones.
Technical measures. Various technical measures can protect workers from exposure to carcinogens, such as enclosed systems, local exhaust ventilation, wet-cutting methods, and dust extraction on power tools.
Organisational measures. Such as limiting exposure time, rotating tasks, using Control Guidance Sheets, and following documented safe work procedures.
Personal protective equipment. Only after technical and organisational measures have been used to reduce exposure as much as possible PPE can be used, such as properly fitted respiratory masks (matched to the correct filter class), gloves, and coveralls.
Employers are legally required to carry out risk assessments, provide training, document tasks involving carcinogens, and offer medical surveillance. As a worker, you have the right to this information and training and a duty to follow site hygiene protocols, such as not taking contaminated work clothes home.
The bottom line
Because occupational cancers can take decades to develop, the risks are easy to overlook in the moment. Staying informed about what materials you’re working with, asking about preventive measures, and using PPE correctly can make a real difference to your long-term health.
Take care of yourself and your future.
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