the present study aimed to determine awareness of tehran residents of seven warning signs of cancer, and application of protective measures against cancer. 2500 residents of tehran were selected through systematic cluster random sampling. data collection tool consisted of a questionnaire, comprising 3 sections of demographic details, awareness of warning signs of cancer, and application of prot...

background: this paper describes the common hazards in the metal industry – chemicals and noise. the aim of the study was to get an overview of risk levels of mentioned occupational hazards and examine the implementation of adequate safety measures. methods: measurements of noise and chemicals were performed, self-reported exposure and usage of personal protective equipment from workers were us...