title: [Characteristics of particulate matter pollution in coke oven plant].
abstract: OBJECTIVE
  To explore the characteristics of particulate matter pollution in coke oven plant, so as to provide scientific data for establishing occupational exposure limits for coke oven emissions.
  
  
  METHODS
  Concentrations of CO, SO₂, BSM, BTEX (concentrations of benzene, toluene and xylene were determined in this study), PM₁₀, PM₂.₅, 16 selected PAHs in PM₁₀ and PM₂.₅ were determined in the work environment of a coke oven plant in Wuhan. The work environment was divided into the adjunct area, the bottom of, the side of and the top of coke oven.
  
  
  RESULTS
  The concentrations of CO, SO₂, BSM, BETX, PM₁₀, PM₂.₅, PAHs in PM₁₀ and PM₂.₅ were significantly related to working environmental categories, respectively, and were increasing as the adjunct area < bottom < side < top (P (trend) < 0.05). PM₁₀ was statistically significantly correlated with CO, SO₂, benzene, BTEX and BSM (0.705, 0.823, 0.664, 0.624 and 0.734, respectively). PM₂.₅ was statistically significantly correlated with CO, SO₂, benzene, BTEX and BSM (0.635, 0.916, 0. 680, 0.553 and 0.726, respectively). BSM was statistically significantly correlated with benzene (0.689). The ratios of PM₂.₅ to PM₁₀ between different work environments were not significantly different in one-way ANOVA (P > 0.05). The distribution of aromatic rings and the concentrations of total benzo[a] pyrene equivalents in PM₁₀ and PM₂.₅ were not statistically different between work environments.
  
  
  CONCLUSIONS
  The concentrations of particulate matter was related with other contents of coke oven emissions in coke work environment, and the contents and types of PAHs in PM₁₀ and PM₂.₅ were similar.
authors.affiliation: Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
authors.forename: Hua-xin
authors.initials: HX
authors.lastname: Deng
authors.forename: Wang-zhen
authors.initials: WZ
authors.lastname: Zhang
authors.forename: Kun
authors.initials: K
authors.lastname: Huang
authors.forename: Yun-feng
authors.initials: YF
authors.lastname: He
authors.forename: Xiao-hai
authors.initials: XH
authors.lastname: Li
authors.forename: Dan
authors.initials: D
authors.lastname: Kuang
authors.forename: Da-feng
authors.initials: DF
authors.lastname: Lin
authors.forename: Xiao-min
authors.initials: XM
authors.lastname: Zhang
authors.forename: Tang-chun
authors.initials: TC
authors.lastname: Wu
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D001554:Benzene / Q000032:analysis*; D001564:Benzo(a)pyrene / Q000032:analysis; D003077:Coke; D016273:Occupational Exposure / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D014050:Toluene / Q000032:analysis; D017132:Workplace; D014992:Xylenes / Q000032:analysis
chemical_list: D000395:Air Pollutants, Occupational; D003077:Coke; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D014992:Xylenes; D001564:Benzo(a)pyrene; D014050:Toluene; D001554:Benzene