in tehran megacity with 7705036 populations, 7000 tons solid waste a day has been generated in 2008. according to the municipality`s division, tehran is divided to 22 local zones. quality and quantity are the basis of planning for hazardous waste management system. in this context, selection a combination of techniques, technology and management program is imperative to achieve purposes of wast...

background adolescence and youth are life-threatening stages of development when a range of unsafe behaviors can harmfully affect a person’s health and their social and educational performance. objectives the present study aimed to determine the incidence and prevalence of high-risk behaviors related to intentional and unintentional harm in adolescents of zahedan (iran). patients and methods th...

Background: Gas refining is a process in which workers are exposed to different chemicals. This study aimed to assess the health risks caused by exposure to these substances in order to determine hazardous jobs and to present controlling methods. Materials and Methods: This cross-sectional study was performed on the workers at gas refinery in 2015. The sample included all the staff in operat...

BACKGROUND Alcohol use and hazardous drinking have been studied in school children and in urban areas of Kenya, but there has been no adult survey of these issues in a rural household population. METHODS This study reports the prevalence of alcohol consumption and hazardous drinking in a household survey of a demographic surveillance site in rural Kenya. Information collected included demogra...

Hazardous chemical is the chemical product in chemical industry. Hazardous chemicals are often toxic. Some hazardous chemicals are corrosive, or easily lead to explosion. In the process of production, storage and transportation, hazardous chemicals can easily lead to leakage or explosion accidents. These result in a large number of casualties and damage to the surrounding environment. Logistics...