Analysis of Occupational Hazards of Industrial Enterprises of Tongzhou District in Beijing

[Objective]To understand the occupational hazard of industrial enterprises in Tongzhou District of Beijing City.[Methods]The occupational hazards test results of enterprises in this district during 2005—2007 were statistically analyzed.[Results] Totally 7593 samples were tested for occupational hazards during 3 years;among which,604 (7.95%) exceeded the national standards for exposure limits. The rate of exceeding physical hazards was 13.06% (272/2083),that of exceeding chemical hazards was 4.52% (248/5486),the over standard rate of productive dust was 8.86% (125/1411).[Conclusion]The most serious risk factors in the district are steady-state noise,productive dust,benzene and styrene.