background:  controversy exists as to the potential of asphalt fumes to induce respiratory symptoms and lung functional impairments. objective: to examine the respiratory effects, if any, of occupational inhalation exposure to asphalt fumes. methods:  in this cross-sectional study, 74 asphalt workers and 110 unexposed employees were investigated. the prevalence of respiratory symptoms among sub...

BACKGROUND The aim of this paper was to examine associations between school building characteristics, indoor environmental quality (IEQ), and health responses using questionnaire data from both school principals and students. METHODS From 334 randomly sampled schools, 4248 sixth grade students from 297 schools participated in a questionnaire. From these schools, 134 principals returned questi...

background: most of the studies have reported higher occupational health hazâ­ards on hazardous waste workers (hww). however reports regarding the assoâ­ciation between health hazards and pro-inflammatory cytokines in hww are scanty. the present study was undertaken to evaluate the relationship between occupational health hazards and serum pro-inflammatory cytokines in hww. methods: one hundred...

more than 45,000 of 100,000 exposed patients are suffering from late effects of sulfur mustard (sm) after almost 20 years post-exposure. respiratory complications of sm exacerbate over time and are the greatest cause of long-term disability in exposed patients. a triad of cough, expectoration and dyspnea has been found to be the main symptoms among patients. even those who had not developed acu...