HEALTH AT WORK

Workplace Safety

Occupational Skin Cancer: Sun Safety for Outdoor Workers

Health at Work · Health at Work

Skin cancer is the most common occupational cancer affecting outdoor workers worldwide, yet it remains one of the least discussed hazards in workplace health programmes. Construction workers, agricultural labourers, landscapers, road maintenance crews, and outdoor security personnel spend hours each day exposed to ultraviolet (UV) radiation from the sun. Over years and decades, this cumulative exposure dramatically increases the risk of basal cell carcinoma, squamous cell carcinoma, and the most dangerous form, malignant melanoma. Employers who overlook sun safety are not just missing a health duty — they may also be exposing their organisation to significant legal and financial risk.

Why Outdoor Workers Are at Disproportionate Risk of Skin Cancer

Unlike members of the public who can choose to limit their sun exposure, outdoor workers have little control over when and how long they work under direct sunlight. Research consistently shows that people who work outdoors for most of their career receive up to ten times more UV exposure than indoor workers over a lifetime. UV radiation does not just come from direct sunlight — it is reflected from surfaces such as concrete, water, sand, and metal, meaning workers can receive significant doses even on overcast days or when standing in partial shade. The World Health Organization classifies solar UV radiation as a Group 1 carcinogen, placing it in the same category as asbestos and tobacco. Despite this, many organisations still treat sunburn as a personal inconvenience rather than a recordable occupational health risk.

Recognising the Warning Signs: What Employers and Workers Must Know

Early detection of skin cancer saves lives. Employers should ensure that all outdoor workers understand the ABCDE rule for identifying suspicious skin changes: Asymmetry, Border irregularity, Colour variation, Diameter greater than 6mm, and Evolution or change over time. Workers with fair skin, a history of sunburn, a large number of moles, or a personal or family history of skin cancer are at elevated risk and should be prioritised for health surveillance. Occupational health assessments should include an annual skin check for high-risk outdoor workers, and workers should be encouraged to perform self-checks monthly. Any new or changing lesion should be referred promptly to a dermatologist.

Practical Sun Safety Measures Every Employer Should Implement

Effective UV risk management requires a layered approach, much like any other occupational hazard. Employers should begin with a UV risk assessment that maps peak exposure times, typically between 10am and 3pm, and identifies the most exposed roles and sites. Where possible, scheduling heavy outdoor work earlier in the morning or later in the afternoon significantly reduces cumulative UV dose. Shade structures, canopies, and covered rest areas should be provided at all outdoor worksites. Personal protective equipment for UV exposure includes wide-brimmed hats, UV-protective clothing rated to UPF 50+, UV-blocking sunglasses, and broad-spectrum SPF 30+ sunscreen applied to all exposed skin every two hours. Sunscreen must be employer-provided, readily accessible, and its use actively encouraged — not left to individual initiative. Training sessions should explain why these measures matter, because workers who understand the science are far more likely to comply consistently. A sun safety policy, included within the broader occupational health and safety framework, formalises these commitments and demonstrates due diligence.

Building a Culture Where Sun Safety Is Taken Seriously

The most effective workplace sun safety programmes combine policy, equipment, training, and health surveillance into a coherent strategy. Management buy-in is essential — when supervisors model good sun safety behaviour, workers follow. Toolbox talks, posters in site welfare facilities, and reminders during seasonal UV peaks all reinforce the message. Health at Work can support your organisation with tailored UV risk assessments, worker health surveillance programmes, and evidence-based training that gives your outdoor teams the knowledge and resources to protect themselves every working day. Preventing occupational skin cancer is not complex — but it requires commitment, consistency, and the right occupational health partnership.