Sunlight, Work and Skin Risk

Outdoor jobs in Lisbon expose workers to high levels of solar ultraviolet rays, a leading factor that can trigger squamous cell skin cancer. Researchers measured the actual amount of UV radiation reaching workers such as gardeners, gravediggers, pavers, asphalters, sanitation crews and sailors. They compared these measurements to the usual exposure limits set for an eight‑hour shift, which are 30 joules per square meter. The study found that the real exposure for many of these workers exceeds the recommended safe amount, especially during peak sunlight hours. Because people in these occupations spend long periods outside, their skin is subjected to a continuous dose of UV light that can accumulate over time.When the researchers calculated the likelihood of developing squamous cell carcinoma, they discovered a higher risk for outdoor workers compared to those who work indoors. Even though the cancer rate is rising in this group, many cases go unreported and are often not recognized as work‑related illnesses. These findings suggest that the current guidelines might not be strict enough for certain professions. If more protective measures—such as better shade, sunscreen use, or scheduled breaks during the hottest part of the day—were implemented, the risk could be lowered. The study highlights a gap in occupational health policies: workers who spend most of their day under the sun may not receive enough protection or monitoring. Raising awareness among employers and employees could help reduce future cases of skin cancer in these high‑risk jobs.