نتایج جستجو برای: occupational heat exposure
تعداد نتایج: 546054 فیلتر نتایج به سال:
Background: Welding is considered as an essential component of many industries and the National Institute for Safety and Health in 1988 estimated that at least two million workers are working as welder so knowing how to control occupational exposures in this industry, to protect and promote the health of welders is essential. Methods: This reviewing article consists of several parts, including...
background and objective: needle stick injuries (nsis) are a common potential risk for healthcare workers. the aim of this study was to evaluate preventive interventions against needle stick injury incidents among hcws. methods: seven hospitals in the iranian chaharmahal-va-bakhtiari province were surveyed between march 2008 to march 2013. data of the needle stick injuries of healthcare worke...
background: toluene is a harmful substance still being used as a solvent and catalyst in many industries that can increase the level of urinary hippuric acid (uha). this study was designed to examine the level of toluene and uha among workers of industrial site in seven companies in sidoarjo, indonesia and to analyze the risk factors for abnormal uha. methods: this study was an analytical cross...
background: this study has been conducted on workers from several workplaces where materials containing lead are used during december 2006-april 2007 in eskişehir, a city of the middle anatolian region of turkey. methods: the study and control groups were occured with 403, and 97 men, respectively. after each interview with the individuals, their blood pressures (bp) and complete blood counts (...
background: for its toxicity, benzene exposure is one of the main health concerns for high risk occupations like gasoline station workers. however, there is little knowledge about the effect of benzene metabolites on hematological parameters. objective: to evaluate the correlation between the urinary level of trans, trans-muconic acid (t, t-ma), a benzene metabolite, and some hematological para...
exposure to air pollutants, steel dust or other occupational and environmental hazards as oxidative stress have adverse effects on subway workers' health. oxidative stress generates an excessive amount of reactive oxygen species (ros) and oxygen free radicals during their work time in the tunnels. once dna is repaired, urinary 8-hydroxy-deoxyguanosine (8-ohdg) is excreted in the urine. therefor...
backgrounds and aims: aluminum and in particular its compounds make up a large proportion of the pollutants coming from the aluminum foundry. in several studies conducted on the harmful effects of aluminum in recent decades, it has been identified as a neurotoxic metal. chronic occupational exposure through inhalation of dust is a common problem in aluminum foundries. investigation of the expos...
background: heat stress is one of the most important consequences of occupational heat exposure worldwide. current heat stress indexes are not suitable for heat strain screening in developing countries due to their inherent and applied limitations. a new observation and subjective screening method is required that needs no instrument. in this study, a scale is developed based on the most import...
Introduction: In previous studies the appearance of vitiligo following occupational exposure has been defined. This study evaluates high risk occupational exposures before the onset of disease among patients with vitiligo Methods: All vitiliginous patients refered to dermatologic clinic of Imam Hospital, were asked about age of onset, recent and previous occupations, risky occupational exposur...
Introduction: Heat stress is a critical problem in hot industries, especially in incredibly hot climates. It can greatly impair the work process and put the health of workers at risk. This study aims to investigate the applicability of the WBGT index in determining the allowable working time in very hot weather conditions in one of the steel industries in Ahvaz. Material and Methods: This stud...
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