occupational hazard
5.Its responsibility is to monitor, identify and estimate the occupational hazard in the factories and enterprises in Beijing area;custody the health status of occupational person; salvage acute toxication and control acute poison, identify baneful chemical substance and test toxicity, and estimate the risk, etc.
6.Conclusion Exposure to low-level VC could cause DNA damage in lymphocytes,and that single cell microgel electrophoresis technique can be used as an objective indicator to detect early occupational hazard caused by low level VC.
7.The data adopted in the paper are recorded in the MHIDAS (Major Hazard Incident Data Service) database up to January 1999 OSH (Occupational Safety and Health).

