نتایج جستجو برای: respiratory exposure
تعداد نتایج: 500241 فیلتر نتایج به سال:
Background: Occupational flour inhalation has been a culprit in commence of several pulmonary maladies, such as asthma. The flour particle is one of the most important factors which can cause occupational chronic respiratory disorders. We examined the relationship of occupational wheat flour inhalation in bakery and supermarket employees with pulmonary function, respiratory symptoms, and sputum...
Background and aimsThe main purpose of this study was to assess the acute and chronic effects of occupational exposure to low levels of formaldehyde on respiratory health.MethodsThis historical cohort study was conducted at a local melamine-formaldehyde resin producing plant. The study population consisted of seventy exposed and 24 non-exposed (referent) employees. In this study, a questionnair...
Background and aims: The purpose of this study was to assess the prevalence of respiratory symptoms (phlegm, cough, shortness of breath and wheezing) and lung functional impairments associated with occupational inhalation exposure to carbon black (CB) dust among employees of a rubber industry. Methods: All of the eligible, CB exposed, employees of the industry (72 subjects) as well as 69 unex...
background: sulfur mustard (sm) as a chemical warfare agent, increases permeability of bronchial vessels and damages airway epithelium. sm exposure causes debilitating respiratory complications. this study was designed to evaluate clinical respiratory manifestations, and to compare chest x ray (cxr) and high resolution computed tomography (hrct) scan of chest in sm exposed patients with respira...
Abstract Purpose of review Controlled oral provocation test with aspirin is considered the “gold standard” for diagnosing hypersensitivity to NSAIDs (non-steroid anti-inflammatory drugs). Newer techniques respiratory exposure tests, bronchial and nasal respectively, have been nonetheless developed, as they are safer, less likely cause a systemic reaction, time-consuming than (acetyl-salicylic a...
dust can be produced by almost all production processes in portland cement factory. dust exposure potentially can affect respiratory function. but evidence for respiratory effect of cement dust exposure has not been conclusive. in this study we assessed effect of cement dust exposure on respiratory function in a cement production factory. a respiratory symptoms questionnaire was completed and p...
Introduction: Exposure to dust is an essential factor in the brick production industry. Determining the mortality rate from silicosis and lung cancer is very important in exposure to crystalline silica dust. Therefore, this study was conducted to risk assessment of workers in machine factories and traditional brick production workshops. Materials and Methods: This cross-sectional study was con...
Erionite, a mineral series within the zeolite group, is classified as a Group 1 known respiratory carcinogen. This designation resulted from extremely high incidences of mesothelioma discovered in three small villages from the Cappadocia region of Turkey, where the disease was linked to environmental exposures to fibrous forms of erionite. Natural deposits of erionite, including fibrous forms, ...
Background and Objective: The human environment is very sensitive and fragile. In recent years the rate of pollutants has been increasing. Ahvaz city (located in South-West of Iran) with a population of 1,000,000 persons is one of the seven polluted Iranian metropolises. So, the aim of current study was to estimate the number of respiratory and cardiovascular deaths related to ozone expos...
introduction: although the main hazard in cement processing is dust, and respiratory tract disorders are the most important group of occupational diseases in this industry, evidence for association between exposures to cement dust and either respiratory symptoms or functional impairment has not been conclusive. this study was, therefore, undertaken to examine, more thoroughly, the effects of oc...
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