Repository of Research and Investigative Information

Repository of Research and Investigative Information

Torbat Heydariyeh University of Medical Sciences

Biological monitoring of occupational exposure to dust among aluminium foundry workers

(2018) Biological monitoring of occupational exposure to dust among aluminium foundry workers. Russian Open Medical Journal. ISSN 23043415


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Aim - The purpose of the study was to evaluate the biological monitoring of occupational exposure to aluminium (AL) dust in foundry workers in south of Tehran. Material and Methods - This cross-sectional study was carried out on 63 workers in A and B foundries and 50 unexposed individuals as the control group. AL dust were sampled using Higgins-Dewell cyclone (HD) and cellulose ester membrane filter (MEC) with a flow of 2.2 l/min in the breathing zone of workers for 4 hours. Urinary samples were taken at the end of work shifts per week and were analyzed using graphite furnace atomic absorption. Data were analyzed using SPSS v.21 and statistical methods including t-test, one-way ANOVA and linear regression. Results - Airborne concentration of AL aerosols differed statistically significant in occupational groups (P < 0.05). There were no significant differences between urinary AL concentrations in different occupational groups (P > 0.05). However, there was a significant difference between urinary concentrations of the exposed group and the control group (P < 0.05) and there was no significant correlation between the AL concentration in workplace air and urinary concentration of AL in the exposed group (P > 0.05). Conclusion - Determination of AL concentration in urine is not enough to serve as a biomarker. Estimation of AL nanoparticles in the air and biomarkers that determine the actual absorption rate seems to be an adequate method for occupational exposure monitoring of AL.

Item Type: Article
Keywords: biological monitoring, air monitoring, foundry workers, occupational exposure, aluminium dust
Journal or Publication Title: Russian Open Medical Journal
Journal Index: ISI, Scopus
Volume: 7
Number: 2
Publisher: Russian Open Medical Journal
Identification Number: 10.15275/rusomj.2018.0206
ISSN: 23043415
Depositing User: دکتر محبوبه عبداللهی

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