Recruitment and flow of participants in the study. Eligible individuals were recruited into the study into three exposure group’s i.e. high, moderate and low exposure, after obtaining informed consent. Participants were administered the LT SEM-Q and at the end of the interview each participant was given four ST SEM-Q and four UV dosimeters, to be used over 4 days. Participants were instructed on when and how to wear the dosimeters and to fill the ST SEM-Q at the end of each day. The used dosimeter and filled ST SEM-Qs was collected the next day after verifying, checking for errors and missing information by research assistants for majority of the participants.