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Study on current situation of the occupational hazards of local state-owned coal mines in China

WANG Xue-tao, MA Jun, GUAN Yan-sheng, LIU Wei-dong, ZHANG Yan-song, LIU Li-hua(Institute for Occupational Safety and Health,State Administration of Work Safety,Beijing 102308, China)  
To understand the occupational hazards of local state-owned coal mines in China through the investigation of 1 local state-owned corporation and 16 local state-owned coal mines in 4 provinces and cities in Northeast China, North China, East China and Southwest China, surveys were conducted on the scenes in them about the management of prevention, monitoring and protection of the occupational hazards and health surveillance etc. Results showed that 47.06% local state-owned coal mines in our investigation had leading institution of occupational hazards and prevention;The total dust concentration at coal mining face was averaged of 10.7 times over standard and respirable dust was averaged of 4.6 times over standard; 100.0% provide health-check before taking the job,while 0 provide health-check when leaving the position; The detective rate of sampling inspection on pneumoconiosis by experts was 5.12%.Conclusions were made that the management level of the occupational hazards and prevention were quite different in our local state-owned coal mines. The dust concentration was beyond the hygienic standard in some working spots and it's very serious of the hazard of pneumoconiosis in china.
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