نتایج جستجو برای: nickel welding fumes
تعداد نتایج: 50070 فیلتر نتایج به سال:
introduction: nickel (ni) is one of the toxic heavy metals that exposure to it has been connected with chronic respiratory complications such as asthma, chronic bronchitis, lung cancer and heart disease. in this research, original studies that investigated occupational or environmental exposure to nickel and measured nickel levels in human tissues were reviewed. materials and methods: in this ...
Background Whereas it is generally accepted that maternal environment plays a key role in child health, emerging evidence suggests that paternal environment before conception also impacts child health. We aimed to investigate the association between children's asthma risk and parental smoking and welding exposures prior to conception. Methods In a longitudinal, multi-country study, parents of...
BACKGROUND Mining and smelting activities affect the biophysical environment and human health. OBJECTIVE This paper elucidates on the human health status of residents close to a nickel-copper mine and concentrator/smelter plant. METHOD 600 questionnaires were administered and data generated was processed. RESULTS Health complaints of respondents included palpitations, lower abdominal pain...
Sir—A number of reports suggest that some occupational exposures of males may alter the gender ratio of their offspring. Reduction in male offspring has been observed after exposures to hyperbaric chambers 1 and among professional drivers, 2 applicators of dibromochloropropane, 3 carbon setters 4 and aluminum smelter workers. 5 Weijin and Olsen 6 have suggested that offspring gender ratio, beca...
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...
BACKGROUND Welders are exposed to many known and suspected carcinogens. An excess lung cancer risk among welders is well established, but whether this is attributable to welding fumes is unclear. Excess risks of other cancers have been suggested, but not established. We investigated welding cancer risks in the population-based Canadian Census Health and Environmental Cohort. METHODS Among 1.1...
OBJECTIVES A cross sectional study of respiratory symptoms and lung function in welders was performed at eight New Zealand welding sites: 62 current welders and 75 non-welders participated. METHODS A questionnaire was administered to record demographic data, smoking habit, and current respiratory symptoms. Current and previous welding exposures were recorded to calculate a total lifetime weld...
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