development of welding fumes health index (wfhi) for welding workplace's safety and health assessment.
نویسندگان
چکیده
this study aimed to develop an index that can rank welding workplace that associate well with possible health risk of welders.welding fumes health index (wfhi) were developed based on data from case studies conducted in plant 1 and plant 2. personal sampling of welding fumes to assess the concentration of metal constituents along with series of lung function tests was conducted. fifteen metal constituents were investigated in each case study. index values were derived from aggregation analysis of metal constituent concentration while significant lung functions were recognized through statistical analysis in each plant.the results showed none of the metal constituent concentration was exceeding the permissible exposure limit (pel) for all plants. however, statistical analysis showed significant mean differences of lung functions between welders and non-welders. the index was then applied to one of the welding industry (plant 3) for verification purpose. the developed index showed its promising ability to rank welding workplace, according to the multiple constituent concentrations of welding fumes that associates well with lung functions of the investigated welders.there was possibility that some of the metal constituents were below the detection limit leading to '0' value of sub index, thus the multiplicative form of aggregation model was not suitable for analysis. on the other hand, maximum or minimum operator forms suffer from compensation issues and were not considered in this study.
منابع مشابه
Development of Welding Fumes Health Index (WFHI) for Welding Workplace’s Safety and Health Assessment
BACKGROUND This study aimed to develop an index that can rank welding workplace that associate well with possible health risk of welders. METHODS Welding Fumes Health Index (WFHI) were developed based on data from case studies conducted in Plant 1 and Plant 2. Personal sampling of welding fumes to assess the concentration of metal constituents along with series of lung function tests was cond...
متن کاملNOMINATION OF WELDING FUMES FOR TOXICITY STUDIES National Institute for Occupational Safety and Health
متن کامل
Health effects of welding.
Many of the epidemiology studies performed are difficult to compare because of differences in worker populations, industrial settings, welding techniques, duration of exposure, and other occupational exposures besides welding fumes. Some studies were conducted in carefully controlled work environments, others during actual workplace conditions, and some in laboratories. Epidemiology studies hav...
متن کاملConcentration Evaluation and Health Risk Assessment of Welders' Exposure to Total Fumes and Manganese during Welding at Metal Industry
Introduction and purpose: Risk assessment of toxic or hazardous chemicals enables industrial hygienists to make appropriate decisions regarding management provisions in a healthy workplace. Exposure to total fumes and manganese during welding can have harmful effects on welders’ health. Therefore, the present study was conducted in the metal industry to evaluate the concentration and determine ...
متن کاملToxicogenomic Approach to Risk Assessment of Welding Fumes
Exposure to welding fumes is already known to produce respiratory effects, such as pulmonary function, pneumoconiosis, and lung cancer, along with certain non-respiratory results, such as manganism [1]. However, despite a large number of publications on the pathophysiological process of welding fume exposure-induced diseases to understand the disease process in vivo and in vitro, relatively few...
متن کاملManganese speciation of laboratory-generated welding fumes.
The objective of this laboratory study was to identify and measure manganese (Mn) fractions in chamber-generated welding fumes (WF) and to evaluate and compare the results from a sequential extraction procedure for Mn fractions with that of an acid digestion procedure for measurement of total, elemental Mn. To prepare Mn-containing particulate matter from representative welding processes, a wel...
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عنوان ژورنال:
iranian journal of public healthجلد ۴۳، شماره ۸، صفحات ۱۰۴۵-۵۹
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