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Exhaled breath malondialdehyde, spirometric results and dust exposure assessment in ceramics production workers.

Abstract：

INTRODUCTION:The study aimed at measuring exhaled breath malondialdehyde (EBC-MDA) in workers exposed to dust containing silica and at its comparison with the non-exposed control group. MATERIAL AND METHODS:The cross sectional, case-control study (N = 50) was performed in a tile and ceramics production factory in Yazd, Iran. EBC-MDA was quantified in exhaled breath of the participants by a lab made breath sampler. Exposure intensity was measured according to the NIOSH 0600 method in selected homogeneous exposure groups. Additionally, spirometry test was conducted to investigate a correlation between EBC-MDA and spirometric findings in the exposed workers. RESULTS:There was no difference in the observed exposure intensities of silica containing dust in different units. However, "coating preparation" was the unit with the highest concentration of dust. Although, the level of EBC-MDA in the cases was slightly higher than in the controls, the difference was not statistically significant (U = 252, p = 0.464). A significant and positive correlation was found between dust exposure intensity in working units and the measured EBC-MDA of workers (r = 0.467, N = 25, p = 0.027). There were also no statistically significant differences among job categories in the exposed group for the values of FEV1% (F(3, 44) = 0.656, p = 0.584), FVC% (F(3, 44) = 1.417, p = 0.172), and FEV1/FVC% (F(3, 44) = 1.929, p = 0.139). CONCLUSIONS:The results showed a significant correlation between respirable dust exposure intensity and the level of EBC-MDA of the exposed subjects. However, our results did not show a significant correlation between lung function decreases and EBC-MDA.

journal_name

Int J Occup Med Environ Health

journal_title

International journal of occupational medicine and environmental health

authors

Sakhvidi MJ,Biabani Ardekani J,Firoozichahak A,Zavarreza J,Hajaghazade M,Mostaghaci M,Mehrparvar A,Barkhordari A

doi

10.13075/ijomeh.1896.00262

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

81-9

issue

eissn

1232-1087

issn

1896-494X

pii

1926

journal_volume

pub_type

杂志文章

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Exhaled breath malondialdehyde, spirometric results and dust exposure assessment in ceramics production workers.