The estimation of the number of underground coal miners and the annual dose to coal miners in China
| Autor: | Ling Chen, Sen-lin Liu, Zi-qiang Pan, Nan-ping Wang, Fu-dong Liu, Ming-li Yang, Ji-zeng Ma |
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| Rok vydání: | 2007 |
| Předmět: |
Estimation
China Underground mining (soft rock) Epidemiology business.industry Health Toxicology and Mutagenesis technology industry and agriculture Coal mining respiratory system Collective dose Radiation Dosage complex mixtures Coal Mining respiratory tract diseases Mining engineering Radon Occupational Exposure otorhinolaryngologic diseases Environmental science Radiology Nuclear Medicine and imaging Coal Occupational exposure business Natural radioactivity |
| Zdroj: | Health physics. 93(2) |
| ISSN: | 0017-9078 |
| Popis: | 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{sup 4} person-Sv y{sup -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. |
| Databáze: | OpenAIRE |
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