Occupational Hazards Status Among Machinery Manufacturing Industry in Changsha

Objective To understand the status,distribution characteristics and occupational exposure features of occupational hazards among machinery manufacturing industry in Changsha;difine the occupational hazards control objectives and keys.Methods Occupational health investigation,testing,occupational health monitoring and other ways were applied to obtain the information of occupational hazards in machinery manufacturing industry during 2008-2010;database was set up for statistical analysis.Results There were 44 occupational hazards enterprises in the machinery manufacturing industry,with 65 363 workers in total,in which the workers exposed to occupational hazards were 19 934,including 4 289 outsourcing staff.The occupational hazards factors which had low qualified rate were silicon dust,noise,ultraviolet,formaldehyde,manganese dioxide.The species of occupational hazards were dust consumption,chronic benzene poisoning,hearing damage and occupational skin diseases.Enterprise management,construction project evaluation and hygiene review,the monitor rate of health were all in low level.Conclusion The main occupational hazards factors in machinery manufacturing are dust,noise,manganese and compounds,benzene,electric arc light soldering.The emphasis of occupational diseases prevention are dust consumption and chronic benzene poisoning.The key control points for occupational hazards in the machinery manufacturing industries are posts such as painting,casting,electrical welding,heat treating,grinding,cutting and so on.