Stainless steel manual metal arc welding fumes in rats.
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منابع مشابه
Stainless steel manual metal arc welding fumes in rats.
Forty two male Wistar rats were exposed to manual metal arc (MMA) stainless steel (SS) welding fumes generated by an automatic welding device for "nose-only" exposure. The exposure simulated an actual MMA/SS welding environment as closely as possible. For the retention study, the duration of exposure was one hour per workday for one, two, three, of four weeks and for the clearance study four we...
متن کاملLung fibrosis in Sprague-Dawley rats, induced by exposure to manual metal arc-stainless steel welding fumes.
To investigate the disease process of pneumoconiosis induced by welding-fume exposure, a lung fibrosis model was established by building a stainless steel arc welding fume generation system and exposing male Sprague-Dawley rats for 90 days. The rats were exposed to welding fumes with concentrations of 57-67 mg/m3 (low dose) and 105-118 mg/m3 (high dose) total suspended particulates for 2 h per ...
متن کاملRelation between various chromium compounds and some other elements in fumes from manual metal arc stainless steel welding.
For the years 1987-1990 160 individual samples of manual metal arc stainless steel (MMA/SS) welding fumes from the breathing zone of welders in four industrial plants were collected. Concentrations of soluble and insoluble chromium (Cr) III and Cr VI compounds as well as of some other welding fume elements (Fe, Mn, Ni, F) were determined. Concentration of welding fumes in the breathing zone ran...
متن کاملOccupational asthma due to manual metal-arc welding of special stainless steels.
Occupational asthma (OA) can be induced by fumes of manual metal-arc welding on stainless steel. In recent years, the use of special stainless steels (SSS) with high chromium content has increased. This study presents two cases of OA caused by manual metal-arc welding on SSS. In both cases, the diagnosis of OA was based on respiratory symptoms, occupational exposure and positive findings in the...
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........ ............................................................................... VII Appended Publications ................................................................... IX Table of
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1983
ISSN: 1351-0711
DOI: 10.1136/oem.40.2.229