The Estimation of the Number of Underground Coal Miners and the Annual Dose to Coal Miners in China

Abstract

This paper introduces an estimation method for the number of underground coal miners and the annual dose to coal miners in China. It shows that there are about 6 million underground miners at present and the proportion is about 1, 1 and 4 million for national key coal mines, state-owned local coal mines, and township and private-ownership coal mines, respectively. The collective dose is about 1.65 x 10(4) person-Sv y(-1), of which township and private-ownership coal mines contribute about 91%. This paper also points out that the 2000 UNSCEAR report gives the number of miners of coal production and their collective dose, which are underestimated greatly because the report only includes the number of underground miners in national key coal mines, which only accounts for 1/6 of the workers all working under the best ventilation conditions in China.

Prevalence Characteristics and Prediction of Coal Workers' Pneumoconiosis in the Tiefa Colliery in China

“…The estimated number of underground miners at present is about 6 million 20) . Although the prevalence of CWP should decrease dramatically in China 21) , the sheer number of 6 million coal miners still makes it a challenge to effectively prevent it and cure it or its complication.…”

Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners

“…In some coal mines in China, however, the uranium content of the coal seams is relatively high and the mines are ventilation-poor, which leads to the potential risk of radon accumulation and radiological impacts on miners. Liu et al [11] measured radon concentrations in 48 coal mines in twelve major coal-producing provinces in China. The results showed that there were greater radon concentrations in stone-coal mines without auxiliary ventilation.…”

Prevalence and Associated Factors of Depressive Symptoms among Chinese Underground Coal Miners

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