Assessment of respiratory morbidity among loading and unloading workers exposed to cement dust

Krishna, Lalu; Pandarikkal, Jagadees R.; Sreedharan, Ranjith; Sampson, Ursula; Annamala, P T; Unni, Kumudam

doi:10.18203/2320-6012.ijrms20192541

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Iraq and Aljeesh et al 22 in Palestine found comparable results for FEV 1 and FEV 1 /FVC, but not for FVC, which showed no significant differences between the two studied groups. By contrast, the findings of Neghab and Choobineh 3 and Krishna et al 23 in Iran agreed with the observations of Meo et al 24 in Pakistan that cementexposed workers had a significant reduction in FVC and FEV 1 but not FEV 1 /FVC. Mahmood et al 25 in Iraq with two studies conducted in Iran by Omidianidost et al 26 and Rafeemanesh et al 27 reported no significant differences in the spirometric parameters between workers and controls.…”

Section: Discussionsupporting

confidence: 79%

Consequences of cement dust exposure on pulmonary function in cement factory workers

Shanshal

Al-Qazaz

2020

American J Industrial Med

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Background: Several health conditions are associated with cement dust exposure; obstructive and restrictive lung disorders are the most common consequences. The aims of this study were to assess the pulmonary function of cement factory workers and to determine the distribution of respiratory consequences resulting from dust inhalation. Methods: A cross-sectional study with convenience sampling was undertaken from December 2019 to March 2020. A total of 97 (response rate, 92.4%) nonsmoking male cement workers were recruited and compared with 97 apparently healthy volunteers. A spirometer was used to measure forced vital capacity (FVC), forced expiratory volume in one second (FEV 1), and their ratio (FEV 1 /FVC). The measured parameters were interpreted according to American Thoracic Society/European Respiratory Society guidelines. Results: Significant reductions were observed in pulmonary function parameters of cement factory workers compared to controls (FVC 4.03 vs. 4.65 L in controls; FEV 1 3.06 vs. 3.95 L in controls; p < 0.001 for both comparisons). A significant variation was observed in the prevalence of spirometric patterns between the two participating groups. Ninety (92.8%) controls had normal respiratory function with no defects, compared with only 25 (25.8%) of the cement workers. Restriction was the most common respiratory problem, with a greater prevalence in the cement workers (44 [45.4%]) compared to six (6.2%) controls. Conclusions: Cement factory workers showed decreased lung function and abnormal spirometric patterns which we attribute to dust inhalation. These workers should have periodic medical examinations and regular rotations through different factory departments to minimize the pulmonary hazards of cement dust.

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Section: Discussionsupporting

confidence: 79%

Consequences of cement dust exposure on pulmonary function in cement factory workers

Shanshal

Al-Qazaz

2020

American J Industrial Med

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“…The main route of entry of this dust is through inhalation (respiratory system) and swallowing (digestive system). 3,4 Cement as a whole, and its components are considered chemical hazards; excess amounts of these elements are potentially harmful to the biotic and abiotic components of the environment. 5 Microelements in cements, eg, chromium, are considered carcinogenic in 1980's.…”

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confidence: 99%

Genomic Instability in Exfoliated Buccal Cells among Cement Warehouse Workers

Krishna

Sampson

Annamala

et al. 2020

Int J Occup Environ Med

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Background: Workers in cement warehouses of Kerala are enduring long-standing exposure to cement dust, which is considered genotoxic. Objective: To evaluate the extent of genotoxicity and cytotoxicity caused due to exposure of cement dust among those working in cement warehouses. Methods: The study included 82 cement warehouse workers and 82 age-matched individuals with no exposure to cement dust. Exfoliated buccal micronucleus cytome assay (BMCyt) was performed to analyze the genotoxic and cytotoxic effects caused by inhalation of cement dust. Results: The frequency of various genotoxic and cytotoxic end markers (micronucleated cells [2-fold increase, p<0.001], nuclear buds [4-fold increase, p<0.001], binucleated cells [4-fold increase, p<0.001], karyorrhectic cells [2-fold increase, p<0.001], pyknotic cells [3- fold increase, p<0.001], and karyolytic cells [2-fold increase, p<0.001]) were higher in the exposed workers compared with unexposed group. Increase of these parameters represented an increased level of chromosomal damage, nuclear disintegration and increased cell death among exposed group compared with unexposed group. Conclusion: Continuous exposure to cement dust results in increased frequency of nuclear aberrations and cellular apoptosis. This may lead to defects in genome maintenance, accelerated ageing, increased chance of oral cancer and neurodegenerative disorders in those occupationally exposed to cement dust.

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“…But the cement manufacturing projects are considered as major source of air pollution due to different hazardous emissions 5 . People are exposed to cement during its production, transportation or construction site 6 . Occupational airborne diseases are considered as one of the important cause of death and disability among people 7 .…”

Section: Introductionmentioning

confidence: 99%

“…Occupational airborne diseases are considered as one of the important cause of death and disability among people 7 . Per year more than 2.3 million deaths occur due occupational illnesses 6 . Cement is a light gray powder which diameter is ranged between 0.05 to 5.0 µm.…”

Section: Introductionmentioning

confidence: 99%

Effect of Exposure to Cement Dust on Peak Expiratory Flow Rate of Cement Factory Workers

Akhter

Noor²,

Begum

et al. 2021

J Chittagong Med Coll Teachers Ass

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Background: Pollutants exerted from different industries are hazardous for both employees and the environment. Though cement industry is playing a key role in economic growth but is a major source of air pollution. Its exposure affects pulmonary functions due to alteration of structural and functional properties of lung. Peak Expiratory Flow Rate (PEFR) is a simple, less expensive pulmonary function test which can be done by spirometer to detect obstructive changes in the respiratory tract.This study is aimed to assess the effect of cement dust on peak expiratory flow rate of workers, those who are exposed to cement dust directly in cement factory. Materials and methods: This case control study was conducted in the Department of Physiology, Chittagong Medical College, Chattogram in collaboration with Heidelberg Cement Bangladesh Ltd at Chattogram from January 2018 to December 2018. Total 88 male workers with age ranged from 20 to 45 years were included in this study by consecutive sampling method. Case group workers were selected from those who were working at least two years in direct contact of cement dust and control group were from office workers of same factory those who were not in direct contact of cement. 44 subjects were included in each group. A predesigned data collection form was filled up by the researcher,which contained information regarding general physical status, job history, present and past disease, drug history of workers. Individual’s height, weight was measured and BMI was calculated. PEFR was assessed by a portable digital spirometer (Chestgraph HI-101, Japan) in upright sitting posture. After compiling data,statistical analyses were done by using SPSS version Windows 25. Unpaired student's 't' test was done for statistical analysis. Results: PEFR of Control and Case group was 7.84±2.21 L/sec and 5.73±1.79 L/sec respectively. In this study Case group showed significant reduction of PEFR (p<0.001) compared to Control group workers. Conclusion: This study result concluded that occupational exposure to cement dust has deleterious effect on lung which is evident by reduced Peak Expiratory Flow Rate (PEFR) of cement exposed workers. JCMCTA 2021 ; 32 (1) : 72-77

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Assessment of respiratory morbidity among loading and unloading workers exposed to cement dust

Cited by 4 publications

References 14 publications

Consequences of cement dust exposure on pulmonary function in cement factory workers

Consequences of cement dust exposure on pulmonary function in cement factory workers

Genomic Instability in Exfoliated Buccal Cells among Cement Warehouse Workers

Effect of Exposure to Cement Dust on Peak Expiratory Flow Rate of Cement Factory Workers

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