Clinical characteristics of the respiratory symptoms of coal mine workers from Tay Nam Da Mai Coal Joint Stock Company - VINACOMIN

Khuong Van Duy, Le Quang Chung, Khuong Thi Bich Phuong, Phuong Khuong Thuy


Objective: To describe respiratory symptoms of coal mine workers from Tay Nam Da Mai Coal Joint Stock Company - Vinacomin in 2019.

Methods: A cross-sectional study was carried out among 757 coal mine workers from Tay Nam Da Mai Coal Joint Stock Company - Vinacomin. Face-to-face interviews were performed using modified standardized questionnaires to elicit information on occupational history, demographics, smoking habits, and respiratory symptoms. 

Results: Workers of Tay Nam Da Mai Coal Joint Stock Company - Vinacomin had dust exposure, with arithmetic mean of 6.4 mg/m3 for current respiratory dust, and had many chronic symptoms such as breathlessness (14.0%), cough (53.6%), 2 weeks for period of the cough (63.8%), 2 months for the cough in one year (65.3%), 2 consecutive years with cough (70.2%) and ≤ 200ml of cough with sputum production per day (97.8%).

Conclusion: Prevalence of chronic respiratory symptoms of coal mine workers in Tay Nam Da Mai Coal Joint Stock Company - Vinacomin was at a high level. The coal mine workers had a high risk of Coal Workers’ Pneumoconiosis, therefore, leaders of Tay Nam Da Mai Joint Stock Company - Vinacomin need to raise awareness among policy-makers, workers and employers in the coal mining industry. It is also useful in setting priorities for prevention strategies. 


coal mine worker, respiratory symptom, breathlessness, cough, chest pain

Full Text:



Carta P, Aru G, Barbieri MT, Avataneo G, Casula D. Dust exposure, respiratory symptoms, and longitudinal decline of lung function in young coal miners. Occup Environ Med. 1996;53(5):312-319.

Weissman ALD. Respiratory Diseases Caused by Coal Mine Dust. J Occup Environ Med. 2014;56:518-522.

Seixas NS1 RT, Attfield MD, Moulton LH. Exposure-response relationships for coal mine dust and obstructive lung disease following enactment of the Federal Coal Mine Health and Safety Act of 1969. Am J Ind Med. 1992;21(5):715-734.

Naidoo R, Seixas N, Robins T. Estimation of respirable dust exposure among coal miners in South Africa. J Occup Environ Hyg. 2006;3(6):293-300.

Mamuya SHD, Bråtveit M, Mwaiselage J, Mashalla YJS, Moen BE. High exposure to respirable dust and quartz in a labour-intensive coal mine in Tanzania. Ann Occup Hyg. 2007;50(2):197-204.

Jones PW. St Georgee's respiratory questionnaire manual. St George's University of London. 2009.

MOH. Circular No. 15/2016/TT-BYT stipulating occupational diseases eligible for social security coverage. 2016.

ILO. Guidelines for the use of the ILO international classification of ragiographs of pneucomoniosies. Revised edition 2000. 2000.

ILO. Guidelines for the use of the international classification of radiographs of pneucomonisoses. Revised edition 2011. 2011.

Mamuya SHD, BrÅTveit M, Mwaiselage J, Moen BE. Variability of Exposure and Estimation of Cumulative Exposure in a Manually Operated Coal Mine. Ann Occup Hyg. 2006;50(7):737-745.

WU Quan-lan DX-p, CHEN Wei-dong,et al. Investigation on health status of coal workers exposed to dust in a coal mining industry group. China Occupational Medicine. 2008.

Robert A. C Cohen1 , Aiyub Patel2 , Francis H. Y Green3. Lung Disease Caused by Exposure to Coal Mine and Silica Dust. Seminars in Respiratory and Critical Care Medicine. 2008;29(6):651-661.

Ying Xia 1, Jiafa Liu 2, Tingming Shi 2, Hao Xiang 1, * , and Yongyi Bi 1, *. Prevalence of Pneumoconiosis in Hubei, China from 2008 to 2013. Int J Environ Res Public Health. 2014;11(9),:8612-8621.

Kuempel ED, Attfield MD, Vallyathan V, et al. Pulmonary inflammation and crystalline silica in respirable coal mine dust: dose-response. J Biosci. 2003;28(1):61-69.

Kizil GV, Donoghue AM. Coal dust exposures in the longwall mines of New South Wales, Australia: a respiratory risk assessment. Occup Med (Lond). 2002;52(3):137-149.

Naidoo RN, Robins TG, Seixas N, Lalloo UG, Becklake M. Respirable Coal Dust Exposure and Respiratory Symptoms in South-African Coal Miners: A Comparison of Current and Ex-Miners. J Occup Environ Med. 2006;48(6).

Wang M-F, Li R-Z, Li Y, et al. Clinical statistics analysis on the characteristics of pneumoconiosis of Chinese miner population. J Thorac Dis. 2016;8(8):2203-2211.

Wong FJ, Dudney TM, McCormack MT. Coal Workers' Pneumoconiosis (Black Lung Disease). 2019.