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| Occupational health risk assessment on asbestos processing enterprises |
| ZHANG Wen-cui*，ZHU Yu-ling，HU Wei-jiang，YE Meng，NIU Yong，ZHOU Ying，ZHANG Lin，MEI Liang-ying
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| *National Institute of Occupational Health and Poison Control，Chinese Center for Disease Control and Prevention，Beijing 100050，China |
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Abstract Objective To evaluate the asbestos exposure levels and occupational health risk levels of key occupations exposed to asbestos dust in asbestos processing enterprises，and to provide scientific evidence to occupational health risk management. Methods On the basis of occupational health investigation on a selected key asbestos processing enterprise in Qinghai Province and detection on asbestos dust concentration of its key occupations，occupational health risk levels of the selected occupations were calculated and evaluated respectively by the methods of the semi-quantitative risk assessment model and the occupational hazard risk index assessment model separately. The results of risk evaluation were compared. Results The concentration of asbestos dust of the tested positions from mineral processing plant，selection plant and finished goods plant had been exceeded the Chinese standard limit （0.8 mg/m3）for asbestos dust，in which the highest concentration had been over 160 folds higher than the Chinese standard limit. The results from the two health risk assessment methods presented that the occupational hazard level reached 5 and health effects level reached 4. Conclusion The risk evaluation results of the semi-quantitative risk assessment model and the occupational hazard risk index assessment model indicated that the occupational health risk levels of these key occupations were in a similar accordance. It showed that occupational health risk situation of the key occupations exposed to asbestos in the asbestos processing enterprise was at an alarming risk level and measures need to be taken right away.
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Published: 04 September 2018
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