Cantieri d' alta quota ed esposizione a UV

The ultraviolet radiation (UV) exposure is a risk factor for outdoor workers. The aim of this study was to estimate the UV exposure in workers of the construction industry, employed in work at high altitude. It was measured the UV environment in four construction industries during the period February - August 2008 and in the hours of greatest exposure (11-15 hours) and were detected at the same climatic parameters (temperature, humidity, pressure) considered influential on the exposure and is was considered also local UV index. The results showed irradiance values ranging between 0.020 and 0.195 W/m2 and exposure between 72 and 702 J/m2/h and between 576 and 5616 J/m2/8 hours. The UV exposure was influenced by meterological and climatic conditions and was greater in conditions of clear skies and high temperatures and therefore in the summery months when the activities are carried out mostly. The study showed a total exposure variables not comparable with the exposure limits, that also relate only to acute effects. The data suggest the opportunity to manage risk with protections and appropriate behaviors to specific exposure, considering the UV index, with which the data were correlated.