[Analysis of monitoring results of occupational hazard factors in workplaces in Zhejiang Province, China in 2006 - 2010].

OBJECTIVE: To analyze the monitoring results of the occupational hazard factors in workplaces in Zhejiang Province, China in 2006 - 2010. METHODS: Descriptive analysis was performed on the monitoring results of the occupational hazard factors in workplaces in Zhejiang Province from 2006 to 2010. RESULTS: From 2006 to 2012, the number of monitored objects for each occupational hazard factor increased gradually, and the qualified rate for each factor remained unchanged or rose slightly. The qualified rates for silica dust and asbestos dust were less than 60%. The qualified rates for benzene, toluene, and xylene, which were always the factors highlighted in the monitoring of toxic chemicals, were all above 85%. The numbers of monitored objects for hexane, hydrogen sulfide, and cyanide grew significantly in recent years. However, the qualified rates for physical factors, which mainly included high temperature and noise, were less than 70%, lower than those for chemical factors. CONCLUSION: The qualified rate is as important as the number of monitored objects in the monitoring of the occupational hazard factors in workplaces in Zhejiang Province, China. The acute and chronic factors, physical and chemical factors, and traditional and new factors should be balanced in monitoring.

[Analysis of new pneumoconiosis cases during 2006-2009 in Zhejiang province].

OBJECTIVE: To analyze the characteristics of pneumoconiosis cases in Zhejiang province and to provide the evidence for pneumoconiosis control and prevention measures in Zhejiang province. METHODS: The data of new pneumoconiosis cases were from national surveillance system of occupational disease in Zhejiang province during 2006-2009, and were analyzed for distribution, age, exposure duration, pneumoconiosis phases and enterprise types. RESULTS: During 2006-2009, 819 new pneumoconiosis cases (173, 157, 209 and 280 cases, respectively) were reported, 86.9% cases suffered from silicosis. Most of pneumoconiosis cases were distributed in Ningbo, Wenzhou areas and in building materials, machinery, coal, geological and mining, light industries and construction enterprise. The average ages of new pneumoconiosis cases were (47.8 +/- 10.0), (52.5 +/- 13.1), (55.5 +/- 11.2) and (55.9 +/- 12.2) years old, respectively and showed a significant increase trend (P<0.05). The average exposure duration of new pneumoconiosis cases were (12.4 +/- 8.6), (12.9 +/- 9.4), (12.4 +/- 8.6) and (15.7 +/- 10.0) years. The average exposure duration of phase I, phase II, phase III new pneumoconiosis cases were (14.3 +/- 9.87), (12.4 +/- 8.7) and (11.4 +/- 7.1) years, respectively and there were significant differences (P<0.05). CONCLUSION: New pneumoconiosis cases in Zhejiang province are increasing year by year, the main type of pneumoconiosis is silicosis, the distribution of pneumoconiosis cases is associated with the areas and enterprises, and the exposure duration of new pneumoconiosis cases is relatively shorter.