نتایج جستجو برای: welders
تعداد نتایج: 627 فیلتر نتایج به سال:
background: the impact of work-related musculoskeletal disorders (wrmsds) on functional performance of nigerian welders is unknown. this study investigated the prevalence, pattern and impact of wrmsds on functional efficiency among welders in alimosho local government, lagos state, nigeria. materials and methods: this cross sectional survey involved 177 welders in a rural-urban area in nigeri...
Background & Aims of the Study: Welder’s exposure to welding fumes can cause occupational diseases. The current study sought to examine exposure to welding fumes among welders who work in the repair shop of Sarcheshmeh Copper Complex and design a local exhaust ventilation system to control exposure to welding fumes. Materials & Methods: This applied analytical study was co...
To develop a method for the early diagnosis of health damage due to arc welding, we measured serum ferritin in 96 general employees and 320 arc welders in Company A. A positive correlation was observed between age and the serum ferritin level in the young group (age, 20 44 years) among the general employees. The mean serum ferritin level in the general employees was 119 ± 56 ng/ml. When the mea...
OBJECTIVES To document if manganese from welding causes health effects including neurological symptoms associated with manganese exposure. MATERIAL AND METHODS An anonymous questionnaire survey for a total of 505 welders at 3 welding facilities in Qingdao City, China was administered and analyzed. RESULTS Numerous symptoms were reported by the welders including difficulty with eyes for 43% ...
Several studies suggest that welding is detrimental to the male reproductive system. Welding fume and radiant heat are of interest as possible causal factors. This study investigates semen quality and sex hormone concentrations among 17 manual metal arc alloyed steel welders with a moderate exposure to radiant heat (globe temperature ranging from 31.1 to 44-8'C), but without substantial exposur...
Objective—To investigate possible neurotoxic eVects in groups of aluminium pot room and foundry workers, aluminium welders, and a small group of workers exposed to aluminium in the production of flake powder. Methods—Exposure to aluminium was evaluated with aluminium concentrations in blood and urine as well as a questionnaire. The groups exposed to aluminium were compared with a group of mild ...
BACKGROUND Particle exposure is a risk factor for cardiovascular diseases. Mitochondrial DNA (mtDNA) is a primary target for oxidative stress generated by particle exposure. We aimed to elucidate the effects of occupational exposure to particle-containing welding fumes on different biomarkers of mtDNA function, and in turn, explore if they modify the association between particle exposure and ca...
BACKGROUND Welding is one of the most exercised industrial processes which welders are exposed to chemical and physical Hazardous agents. This study was conducted to evaluate occupational and environmental exposures to aerosols generated by welding processes in a factory. METHODS A total of 28 samples of aerosols were collected at 4 different locations including indoor, outdoor, source of wel...
The aim of the analysis was to retrospectively assess changes in lung function in copper miners depending on the type of workplace. In the groups of 225 operators, 188 welders, and 475 representatives of other jobs, spirometry was performed at the start of employment and subsequently after 10, 20, and 25 years of work. Spirometry Longitudinal Data Analysis software was used to estimate changes ...
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