background: the adverse effects of noise are well known and noise problems due to industrialization of communities are increasing over the time. oil industries due to the process and nature of production; contain many noise sources such as compressors, turbines, and pumps, which cause excessive noise exposure. the objective of this study was to evaluate the noise characteristics of compressors ...

background: musculoskeletal disorders (msds) are one of the most common causes of occupational injuries that appear mainly in back, neck and upper limb. this study was conducted with the objectives of determination of prevalence rate of msds among workers of a generator manufacturing company and ergonomics assessment of working conditions. methods: in this study, 319 workers randomly selected p...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: work-related musculoskeletal disorders (wmsds) are as one of general health problems throughout the world and they are the main reason for disabilities. the aim of this study was to investigate the prevalence of wmsds of isfahan’s teachers and the effect of eight weeks selected corrective exercises and ergonomi...

occupational inhalation exposure to noxious agents is not uncommon. herein, we present a 26-year-old male student who had accidental acute inhalation exposure to a large quantity of titanium ethanolate and hydrogen chloride in chemistry lab. he was referred to the emergency department of our hospital with low-grade fever, dyspnea, headache, fatigue and myalgia. after 24 hrs of symptomatic treat...

hazardous chemicals may enter the body by inhalation, ingestion, injection or dermal absorption. these exposure routes constitute the overall exposure burden on the body. most occupational exposure studies have focused on measurement of the concentration of air-borne contaminants and other possible routes of exposure are often overlooked. several studies have already highlighted the importance ...

background: occupational lead poisoning is a health problem in iran. it has not previously been studied in traditional tile makers. objective: to determine the prevalence of lead poisoning and its complications in traditional tile workers in mashhad, northwest of iran. methods: we visited workers in two traditional tile factories and collected data by direct history taking and physical examinat...

high intensity optical radiation can cause damage to the eye and intense radiation in the range of 770-1400 nm can cause thermal retinal damage. in the workplaces where there are high temperature sources, the workers in front of these hot  sources without bright light maybe exposed to the  intense ir radiation, thus regular measurement of these radiations seems crucial. measurement of ir radiat...

background and objective: professional radiation workers are occupationally exposed to long-term low levels of ionizing radiation. occupational health hazards from radiation exposure, in a large occupational segment of the population, are of special concern. biological dosimetry can be performed in addition to physical dosimetry with the aim of individual dose assessment and biological effects....

800x600 background: nowadays, mothers are continuously exposed to different sources of electromagnetic fields before and even during pregnancy.   it has recently been shown that exposure to mobile phone radiation during pregnancy may lead to adverse effects on the brain development in offspring and cause hyperactivity. researchers have shown that behavioral problems in laboratory animals which ...

polybrominated diphenyl ethers (pbdes) have been widely used in many products as flameretardants, which resulted in their release into the environment. little is known about the impact of coexisting pbdes on organisms. in this study, the in vivo effects of bde-47 and bde-99 on a suite of biomarkers, acetyl cholinesterase (ache), ethoxyresorufin-o-deethylase (erod), glutathione-s-transferase (gs...