Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry
Background: Occupational exposure to formaldehyde may decrease white blood cell counts and change blood concentration. In this study, the influences of occupational exposure to formaldehyde on the number of white blood cells and blood concentrations were studied. Methods: This case-control study wa...
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Tabriz University of Medical Sciences
2015-12-01
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doaj-e3dddf03b93d4472af5192d4ad255dd02020-11-24T22:01:03ZengTabriz University of Medical SciencesHealth Promotion Perspectives2228-64972228-64972015-12-015429630310.15171/hpp.2015.035Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood IndustryMohammad Javad Jafari0Abolfazl Rahimi1Leila Omidi2Mohammad Hassan Behzadi3Mohammad Hassan Rajabi4Occupational Health Engineering Department, Shahid Beheshti University of Medical Sciences, Tehran, IranDepartment of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, IranOccupational Health Engineering Department, Tehran University of Medical Sciences, Tehran, IranDepartment of Statistics, Science and Research Branch, Islamic Azad University, Tehran, IranDoctorate of Laboratory Sciences, Golestan University of Medical Sciences, Gonbad, IranBackground: Occupational exposure to formaldehyde may decrease white blood cell counts and change blood concentration. In this study, the influences of occupational exposure to formaldehyde on the number of white blood cells and blood concentrations were studied. Methods: This case-control study was conducted in June of 2012 at North Wood Factory, Golestan Province, Iran. The US-NIOSH method No. 2541 was used to determine the occupational exposure of 30 workers of the production line (case group) and 30 administrative staffs (control group) to formaldehyde. The number of white blood cells and blood concentration were determined using the normal blood count method and related indices. Demographic features as well as the symptoms of being exposed to formaldehyde were collected using a standard questionnaire. Results: The occupational exposure of case group ranged from 0.50 ppm to 1.52 ppm. The prevalence of all studied symptoms from formaldehyde exposure in workers (2<median<5; range 1 to 5) was significantly different (P<0.001) towards the administrative staffs (median 1; range 1 to 4). The number of white blood cells in production line workers was not significantly different from those in administrative staff. The average blood concentration in the case group was significantly different from the control group (mean difference= 0.9 [95% CI: 0.40-1.39];P=0.007). Conclusion: Occupational exposure to formaldehyde changed the blood concentration of the studied workers but did not change the number of their white blood cells. http://journals.tbzmed.ac.ir/HPP/Manuscript/HPP-5-296.pdfFormaldehydeOccupational ExposureSymptomsBlood CellWood Industry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohammad Javad Jafari Abolfazl Rahimi Leila Omidi Mohammad Hassan Behzadi Mohammad Hassan Rajabi |
spellingShingle |
Mohammad Javad Jafari Abolfazl Rahimi Leila Omidi Mohammad Hassan Behzadi Mohammad Hassan Rajabi Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry Health Promotion Perspectives Formaldehyde Occupational Exposure Symptoms Blood Cell Wood Industry |
author_facet |
Mohammad Javad Jafari Abolfazl Rahimi Leila Omidi Mohammad Hassan Behzadi Mohammad Hassan Rajabi |
author_sort |
Mohammad Javad Jafari |
title |
Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry |
title_short |
Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry |
title_full |
Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry |
title_fullStr |
Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry |
title_full_unstemmed |
Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry |
title_sort |
occupational exposure and health impairments of formaldehyde on employees of a wood industry |
publisher |
Tabriz University of Medical Sciences |
series |
Health Promotion Perspectives |
issn |
2228-6497 2228-6497 |
publishDate |
2015-12-01 |
description |
Background: Occupational exposure to formaldehyde may decrease white blood cell counts and change blood concentration. In this study, the influences of occupational exposure to formaldehyde on the number of white blood cells and blood concentrations were studied.
Methods: This case-control study was conducted in June of 2012 at North Wood Factory, Golestan Province, Iran. The US-NIOSH method No. 2541 was used to determine the occupational exposure of 30 workers of the production line (case group) and 30 administrative staffs (control group) to formaldehyde. The number of white blood cells and blood concentration were determined using the normal blood count method and related indices. Demographic features as well as the symptoms of being exposed to formaldehyde were collected using a standard questionnaire.
Results: The occupational exposure of case group ranged from 0.50 ppm to 1.52 ppm. The prevalence of all studied symptoms from formaldehyde exposure in workers (2<median<5; range 1 to 5) was significantly different (P<0.001) towards the administrative staffs (median 1; range 1 to 4). The number of white blood cells in production line workers was not significantly different from those in administrative staff. The average blood concentration in the case group was significantly different from the control group (mean difference= 0.9 [95% CI: 0.40-1.39];P=0.007).
Conclusion: Occupational exposure to formaldehyde changed the blood concentration of the studied workers but did not change the number of their white blood cells.
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topic |
Formaldehyde Occupational Exposure Symptoms Blood Cell Wood Industry |
url |
http://journals.tbzmed.ac.ir/HPP/Manuscript/HPP-5-296.pdf |
work_keys_str_mv |
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