Evaluation of differences in ultraviolet exposure during weekend and weekday activities

The weekday UV exposures to anatomical sires were evaluated for outdoor wor kers, home workers, adolescents, indoor workers, school staff and students in south-east Queensland, Australia. Additionally, the UV exposures at week ends of school staff, school students, indoor workers and outdoor workers w ere evaluated. The weekday exposures per day ranged rom 1.0 to 11.0 SED for winter to summer respectively. During spring, the ratios of the personal e xposures divided by the ambient exposures at the weekend to the personal ex posures divided by the ambient exposures on the weekdays to the neck, hand and left arm were at least 3.4, 2.0 and 0.67 for the indoor workers, school staff and students and outdoor workers respectively. The same ratios for t he crythemal UV exposures over the year, estimated from the exposures on fo ur days in each of the four seasons, were at least 2.3 for the school staff and at least 1.3 for the 13 to 19 year old school students. These results reinforce the importance of targeting prevention programmes to both weekend and weekday exposures.