Preventing Occupational Cancer in Australian Workplaces

Occupational cancer develops when work exposes people to hazardous substances, radiation or processes over time. The latency can be measured in years or decades, so a workplace may appear safe while harmful exposure continues. Employers have a critical role in identifying carcinogens early, removing them where possible and controlling any remaining risk.

In Australia, the issue spans many industries. A construction worker in Sydney may cut materials containing respirable crystalline silica, a miner near Perth may encounter diesel emissions, and a farm worker in regional Queensland may spend long hours under intense ultraviolet radiation. Effective prevention combines legal compliance, sound industrial hygiene, informed workers and ongoing review.

Recognising carcinogens in everyday operations

A hazardous substance does not need to be visibly dramatic to create a serious cancer risk. Asbestos fibres, hardwood dust, welding fumes, diesel engine exhaust, benzene, formaldehyde, lead compounds and silica dust can be released through routine work. Ultraviolet radiation is also a significant occupational hazard for outdoor workers, including those in agriculture, construction, road maintenance and coastal industries.

Start with a complete inventory of materials, equipment and work activities. Safety data sheets should be current and accessible, yet they should not be the only source of information. Ask how products are used, heated, cut, sprayed, mixed, transported or discarded. A product that is safe in a sealed container may become hazardous when machined or applied in a confined space.

Australian employers should check the requirements of the relevant state or territory regulator, since workplace health and safety laws are administered through local jurisdictions. Safe Work Australia’s model guidance is an important reference, but businesses must verify the duties that apply in New South Wales, Victoria, Queensland, Western Australia, South Australia, Tasmania, the Northern Territory or the Australian Capital Territory.

Build a risk assessment around exposure

A useful assessment identifies who may be exposed, how exposure occurs and how often the task takes place. Consider inhalation, skin contact, ingestion and radiation. Include cleaners, maintenance staff, apprentices, labour-hire workers, visitors and people working nearby. Short tasks can produce intense exposure, while low-level exposure repeated over many years can also be significant.

Assess the source before relying on personal protective equipment. Can a solvent be replaced with a less hazardous product? Can prefabricated materials eliminate cutting on site? Can a wet method, enclosed process or local exhaust ventilation capture dust and fumes at the point of release? These controls are generally more reliable than expecting every worker to wear equipment correctly for every shift.

A written risk assessment should record the selected controls, responsible managers, deadlines and verification methods. Air monitoring may be appropriate for silica, welding fumes, solvents or other airborne contaminants, while ultraviolet exposure can be assessed through work schedules, shade, clothing and sunscreen practices. Monitoring results should lead to action rather than become a compliance exercise filed away without review.

Apply the hierarchy of controls

Elimination is the strongest control. For example, an employer may remove an asbestos-containing material from a planned renovation, discontinue a carcinogenic chemical or redesign a task so workers no longer enter a contaminated area. Substitution is the next preference, such as selecting a lower-emission product or a construction material that does not require high-risk cutting.

Engineering controls should isolate people from the hazard. Examples include enclosed transfer systems, automated dosing, water suppression, local exhaust ventilation, negative-pressure enclosures and properly maintained extraction hoods. In workshops and warehouses, plant layout matters: separating dusty or fume-producing work from offices, amenities and clean areas can reduce secondary exposure.

Administrative controls support the physical safeguards. They include restricted access, job rotation where appropriate, cleaning procedures, preventive maintenance, training and exposure records. Respiratory protection, protective clothing, gloves, eye protection and sunscreen remain important where risk persists, but personal protective equipment should never be used as a substitute for feasible higher-level controls.

Pay close attention to Australian high-risk work

Engineered stone is a major Australian example of changing occupational health policy. Because cutting and shaping the material can generate respirable crystalline silica, Australia introduced a prohibition on the manufacture, supply, processing and installation of engineered stone benchtops, slabs and panels from 1 July 2024, subject to the legal arrangements applying in each jurisdiction. Businesses must identify existing stock, legacy installations and related demolition or renovation work before planning tasks.

Asbestos remains another enduring concern, particularly in older homes, public buildings and industrial sites. It was widely used in Australia before its ban, so employers in construction, maintenance, plumbing, electrical work and demolition must treat unknown materials in older structures cautiously. A register, competent assessment and licensed removal arrangements may be required, depending on the work and jurisdiction.

Outdoor work requires a locally realistic approach to ultraviolet radiation. A landscaping crew in Brisbane, a council team in Adelaide or a roadwork gang outside Darwin may face high UV exposure even when the temperature is moderate. Scheduling strenuous work outside peak UV periods, providing shade and cool recovery areas, supplying long-sleeved work clothing and integrating sunscreen into daily routines can reduce risk.

Mining, transport and heavy industry also need controls for diesel exhaust, welding fumes and naturally occurring dusts. FIFO rosters, remote sites and subcontracting can complicate supervision and health monitoring. Employers should ensure that fatigue management, accommodation, vehicle maintenance and contractor arrangements do not undermine exposure controls.

Involve workers and manage the supply chain

Workers often know where controls fail in practice. A consultation process should capture complaints about dust, odour, fumes, skin irritation, poor ventilation and uncomfortable protective equipment. Supervisors need a simple method for reporting hazards and a clear duty to act. Toolbox talks are more effective when they use the actual products, tools and photographs found at the site rather than generic warnings.

Training should explain the health effect, route of exposure, control method and signs of control failure. New starters, apprentices and workers with limited English may need demonstrations, translated material or practical verification. Refresher training is necessary after equipment changes, incidents, new substances or revised legal requirements. Campaign materials can be made easier to recognise by using consistent colours and visual themes across signs, induction slides and task instructions.

Contractors and suppliers must be included in the same prevention system. Procurement teams should request current safety data sheets, emissions information, maintenance requirements and evidence of regulatory compliance before purchasing. Contracts should define who provides respiratory protection, conducts air monitoring, maintains extraction and keeps health records. Principal contractors should verify that controls remain in place when multiple trades work in the same area.

For smaller Australian businesses, digital risk-assessment tools can help structure this process. The OiRA platform offers sector-based assessments in several European contexts, while the OSHwiki and EU-OSHA materials provide useful explanations of carcinogen control, worker participation and emerging risks. Australian guidance and regulator requirements still determine the legal standard, but these resources can support a practical prevention system.

Monitor health, records and performance

Health monitoring is required for some hazardous exposures and may be recommended where a risk assessment identifies a significant risk. It should be designed by an appropriately qualified occupational physician or health professional, with results communicated to workers in a clear and confidential manner. Medical surveillance cannot make an unsafe process acceptable; its purpose is to detect effects early and test whether controls are working.

Keep records of exposure assessments, air-monitoring results, training, maintenance, incidents, health monitoring and control reviews. Some occupational diseases have long latency periods, making reliable records important after a worker changes role or leaves the business. Records should be securely stored, accessible to authorised people and managed in line with privacy obligations.

Performance indicators should measure prevention rather than paperwork alone. Useful measures include the percentage of high-risk tasks assessed, the proportion of carcinogenic substances eliminated or substituted, ventilation test completion, corrective action closure times and worker reports resolved. A rise in reported concerns may initially indicate better trust and visibility, rather than worsening conditions.

Workplace situation	Main cancer risk	Preferred controls	Evidence to review
Cutting or demolishing older building materials	Asbestos fibres	Survey and register materials, isolate the area, use licensed removal where required	Asbestos register, licences, clearance records
Fabricating or installing stone products	Respirable crystalline silica	Avoid prohibited engineered stone work, use compliant alternatives and control dust during legacy work	Product records, task assessments, air monitoring
Welding, thermal cutting or grinding	Metal fumes and dust	Substitute processes, use local exhaust ventilation, maintain extraction and select suitable respiratory protection	Ventilation tests, maintenance logs, exposure results
Operating diesel-powered plant indoors	Diesel particulate matter	Use electric or lower-emission equipment, improve ventilation and restrict idling	Plant register, servicing records, air-quality checks
Long-duration outdoor work	Ultraviolet radiation	Shade, clothing, hats, sunscreen, scheduling and worker education	UV procedures, shade inspections, training records
Handling solvents, resins or preservatives	Chemical carcinogens	Substitute products, enclose transfer, control storage and provide hygiene facilities	Safety data sheets, chemical register, spill records

An employer’s prevention programme should be reviewed after an incident, a failed monitoring result, a regulatory change or a new production method. The review should involve workers and supervisors who perform the task. If controls are not used because they slow production, create heat stress or interfere with visibility, the solution is to redesign the system rather than blame individuals.

Every Australian employer can turn occupational cancer prevention into a practical management priority. Begin with a carcinogen inventory, assess the tasks that create exposure, remove avoidable hazards and verify the controls that remain. Use regulator guidance, competent occupational health advice and worker experience to keep the programme current.

Commit resources to safer materials, well-maintained engineering controls, meaningful training and reliable records. A workplace that prevents harmful exposure today protects workers’ health long after the immediate task has finished.