Acta Medica Iranica 2014. 52(2):146-152.

Cross-shift study of acute respiratory effects in cement production workers.
Omid Aminian, Maryam Aslani, Khosro Sadeghniiat Haghighi

Abstract


Cement dust exposure is associated with increased respiratory impairment. As the major occupational hazard in the cement production industry is cement particles, our aim was to more thoroughly examine the acute effects of occupational exposure to cement dust on the respiratory system. A cross-shift study was conducted in a cement factory in Iran. 100 high exposed workers from production and packing sections and 100 low exposed from office workers were included. Environmental total dust was measured in each section. Assessment of lung function was done by pre and post shift spirometry. At the end of the day shift, acute respiratory symptoms were recorded. The means of total dust among high and low exposed workers were 16.55 mg/m3 and 0.9 mg/m3, respectively. The most common acute respiratory symptoms in high exposed workers were stuffy nose (52%) and shortness of breath (49%). A statistically significant post shift reduction in PEF, FEV1, FEF 25-75, FVC and FEV1/ FVC was demonstrated in high exposed group. Multivariate linear regression showed a significant relationship between the percentage of the cross-shift decrease in spirometric indices and exposure to cement dust. We detected significant relationship between exposure to cement dust and acute respiratory symptoms and pulmonary function indices. Effective dust-control measures and preparing a suitable strategy for respiratory protection are highly recommended.

Keywords


Cement dust; Respiratory symptom; Pulmonary function; Exposure-response relationship

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References


Fairhurst S, Phillips A, Gilles C, et al, editors. Portland cement dust:criteria document for an occupational exposure limit. 1st ed. Sudbury: HSE Books; 1994.

Pordan L, Bachofen G. Cement and concrete. In: Stellman JM, editor. Encyclopaedia of occupational health and safety. 4st ed. Geneva:International labor organization; 1998: p. 93.44-9.

Merenu IA, Mojiminiyi FBO, Njoku CH, et al. The effect of chronic cement dust exposure on lung function of cement factory workers in Sokoto, Nigeria. African J Biomed Res 2007;10(1):139-43.

Fell AKM, Skkeland LIB, Svendsen MV, et al. Airway inflammation in cement production workers. Occup Environ Med 2010;67(6):395-400.

Neghab M, Choobineh A. Work related respiratory symptoms and ventilatory disorders among employees of a cement industry in Shiraz, Iran. J Occup Health 2007;49(4):273-8.

Mwaiselage J, Bratveit M, Moen B, et al. Cement dust exposure and ventilatory function impairment: an exposure-response study. J Occup Environ Med 2004;46(7):658-67.

Mwaiselage J, Moen B, Bratveit M. Acute respiratory health effects among cement factory workers in Tanzania:an evaluation of a simple health surveillance tool. Int Arch Occup Environ Health 2005;79(1):49-56.

Mwaiselage J, Bratveit M, Moen B, et al. Variability indust exposure in a cement factory in Tanzania. Ann OccupHyg 2005;49(6):511-9.

Kakooei H, Kakouei AA, Poornajaf A, et al. Variability in Total Dust Exposure in a Cement Factory. Ind Health 2012;50(1):64-8.

Zeleke ZK, Moen BE, Bratveit M. Cement dust exposure and acute lung function:a cross shift study. BMC Pulm Med 2010;10(1):19.

AbuDhaise BA, Rabi AZ, al Zwairy MA, et al. Pulmonary manifestations in cement workers in Jordan. Int J Occup Med Environ Health 1997;10(4):417-28.

Aminian O, Sharifian SA, Mehrdad R, et al. Humoral immune system alteration in silica exposed workers. Iranian J Publ Health 2008;37(3):142-5.

Yang CY, Huang CC, Chiu HF, et al. Effects of occupational dust exposure on the respiratory health of Portland cement workers. J Toxicol Environ Health 1996;49(6):581-8.

Al-Neaimi YI, Gomes J, Lloyd OL. Respiratory illnesses and ventilatory function among workers at a cement factory in a rapidly developing country. Occup Med (Lond) 2001;51(6):367-73.

Mwaiselage J, Bratveit M, Moen BE, et al. Respiratory symptoms and chronic obstructive pulmonary disease among cement factory workers. Scand J Work Environ Health 2005;31(4):316-23.

Ballal SG, Ahmed HO, Ali BA, et al. Pulmonary effects of occupational exposure to Portland cement:a study from eastern Saudi Arabia. Int J Occup Environ Health 2004;10(3):272-7.

Newson-Smith M. Cement dust exposure and ventilatory function impairment:an exposure-response study. J Occup Environ Med 2005;47(1):1.

Oleru UG. Pulmonary function and symptoms of Nigerian workers exposed to cement dust. Environ Res 1984;33(2):379-85.

Fell AK, Thomassen TR, Kristensen P, et al. Respiratory symptoms and ventilatory function in workers exposed to portland cement dust. J Occup Environ Med 2003;45(9):1008-14.

Meo SA, Azeem MA, Ghori MG, et al. Lung function and surface electromyography of intercostal muscles in cement mill workers. Int J Occup Med Environ Health 2002;15(3):279-87.

Laraqui Hossini CH, Laraqui Hossini O, Rahhali AE, et al. Respiratory symptoms and ventilatory disorders among a group of cement workers in Morocco. Rev Mal Respir 2002;19(2 Pt 1):183-9.

Mengesha YA, Bekele A. Relative chronic effects of different occupational dusts on respiratory indices and health of workers in three Ethiopian factories. Am J Ind Med 1998;34(4):373-80.

Noor H, Yap CL, Zolkepli O, et al. Effect of exposure to dust on lung function of cement factory workers. Med J Malaysia 2000;55(1):51-7.

Fell AK, Noto H, Skogstad M, et al. A cross-shift study of lung function, exhaled nitric oxide and inflammatory markers in blood in Norwegian cement production workers. Occup Environ Med 2011;68(11):799-805.

Threshold Limit Values for Chemical substances and Physical Agents and Biological Exposure Indices. ACGIH. (Accessed in Feb 14, 2014, at www.acgih.org).

Medical Research Council on the Aetiology of Chronic Bronchitis. Standardized questionnaire on respiratory symptoms. Br Med J 1960;2(5213):1665.

Wasserfallen JB, Gold K, Schulman KA, et al. Development and validation of a rhinoconjunctivitis and asthma symptom score for use as an outcome measure in clinical trials. J Allergy Clin Immunol 1977;100(1):16-22.

Miller MR, Hankinson J, Brusasco V, et al. Standardisation of spirometry. Eur Respir J 2005;26(2):319-38.

Alvear-Galindo MG, Mendez-Ramirez I, Villegas- Rodriguez JA, et al. Risk indicator of dust exposure and health effects in cement plant workers. J Occup Environ Med 1999;41(8):654-61.

Ali BA, Ballal SG, Albar AA, et al. Post-shift changes in pulmonary function in a cement factory in eastern Saudi Arabia. Occup Med (Lond) 1998;48(8):519-22.

Borsboom GJ, van Pelt W, van Houwelingen HC, et al. Diurnal variation in lung function in subgroups from two Dutch populations:consequences for longitudinal analysis. Am J Respir Crit Care Med 1999;159(4 Pt 1):1163-71.


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