title: [Occupational hazards survey of specially supervised enterprises during 2011-2012 in one district of Shenzhen, China].
abstract: OBJECTIVE
  To analyze the results of an occupational hazards survey of specially supervised enterprises (156 enterprise-times) during 2011-2012 in one district of Shenzhen, China and find out the changes in occupational hazards in these enterprises, and to put forward countermeasures for the prevention and control of occupational hazards.
  
  
  METHODS
  Occupational hazards monitoring results for specially supervised enterprises (156 enterprise-times) during 2011-2012 were included. Comparison and analysis were performed between different years, different industries, different occupational hazards, and different sizes of enterprises.
  
  
  RESULTS
  A total of 1274 monitoring sites from these specially supervised enterprises were included, of which qualification rate was 73.55% (937/1274), and the noise monitoring sites showed the lowest qualification rate. The overall qualification rate in 2012 (70.37%) was significantly lower than that in 2011 (80.94%) (χ(2) = 15.38, P < 0.01). In electronics industry, the qualification rate in 2012 was significantly lower than that in 2011 (χ2 = 11.27, P = 0.001). Comparison of various hazards in different industries indicated that electronic enterprises and furniture enterprises had the lowest qualification rate in noise monitoring, printing enterprises had the lowest qualification rate in organic solvent monitoring, and furniture enterprises had the lowest qualification rate in dust monitoring. Comparison between different sizes of enterprises indicated that the qualification rate of large and medium enterprises in 2012 was significantly lower than that in 2011, while the qualification rate of small enterprises in 2012 was significantly higher than that in 2011 (P < 0.01 or P < 0.05).
  
  
  CONCLUSIONS
  In the prevention and control of occupational hazards in specially supervised enterprises, special attention should be paid to the control of organic solvents in printing enterprises and noise and dust in furniture enterprises.
authors.affiliation: Guangming District Center for Disease Control and Prevention, Shenzhen 518107, China.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Guangming District Center for Disease Control and Prevention, Shenzhen 518107, China.
authors.forename: Xianxing
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Guangming District Center for Disease Control and Prevention, Shenzhen 518107, China.
authors.forename: Chu
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Guangming District Center for Disease Control and Prevention, Shenzhen 518107, China.
authors.forename: Song
authors.initials: S
authors.lastname: Liu
authors.affiliation: Guangming District Center for Disease Control and Prevention, Shenzhen 518107, China.
authors.forename: Jian-Feng
authors.initials: JF
authors.lastname: He
mesh_terms: D000395:Air Pollutants, Occupational; D002681:China; D004391:Dust; D007221:Industry / Q000706:statistics & numerical data*; D009623:Noise, Occupational; D016273:Occupational Exposure / Q000706:statistics & numerical data*; D016272:Occupational Health / Q000706:statistics & numerical data*; D012997:Solvents
chemical_list: D000395:Air Pollutants, Occupational; D004391:Dust; D012997:Solvents