title: Reduction of cooking oil fume exposure following an engineering intervention in Chinese restaurants.
abstract: BACKGROUND
  A new engineering intervention measure, an embracing air curtain device (EACD), was used to increase the capture efficiency of cooker hoods and reduce cooking oil fume (COF) exposure in Chinese restaurants.
  
  
  METHODS
  An EACD was installed in six Chinese restaurants where the cooks complained of COF exposure. Before- and after-installation measurements were taken to compare changes in particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) in kitchen air, and changes in levels of urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and malondialdehyde (MDA). The association between PM and PAHs in air and 8-OHdG and MDA in urine was evaluated by linear mixed-effects regression analysis.
  
  
  RESULTS
  Results showed that geometric mean kitchen air levels of PM(10), PM(2.5), PM(1.0) and total particulate PAHs were significantly reduced after the EACDs were introduced. Urinary levels of 8-OHdG and MDA in cooks were also significantly lower after EACD instalment. PM(2.5), PM(1.0) and benzo(a)pyrene (BaP) levels were positively associated with urinary 8-OHdG levels after adjusting for key personal covariates. Urinary MDA levels in cooks were also positively associated with BaP levels after adjusting for key personal covariates.
  
  
  CONCLUSIONS
  This study demonstrates that the EACD is effective for reducing COF and oxidative stress levels in cooks working in Chinese kitchens.
authors.affiliation: Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University, Taipei 10020, Taiwan.
authors.forename: Chih-Hong
authors.initials: CH
authors.lastname: Pan
authors.forename: Tung-Sheng
authors.initials: TS
authors.lastname: Shih
authors.forename: Chiou-Jong
authors.initials: CJ
authors.lastname: Chen
authors.forename: Jin-Huei
authors.initials: JH
authors.lastname: Hsu
authors.forename: Shun-Chih
authors.initials: SC
authors.lastname: Wang
authors.forename: Chien-Ping
authors.initials: CP
authors.lastname: Huang
authors.forename: Ching-Tang
authors.initials: CT
authors.lastname: Kuo
authors.forename: Kuen-Yuh
authors.initials: KY
authors.lastname: Wu
authors.forename: Howard
authors.initials: H
authors.lastname: Hu
authors.forename: Chang-Chuan
authors.initials: CC
authors.lastname: Chan
mesh_terms: D000080242:8-Hydroxy-2'-Deoxyguanosine; D000293:Adolescent; D000328:Adult; D000395:Air Pollutants, Occupational / Q000302:isolation & purification*; D016902:Air Pollution, Indoor / Q000032:analysis / Q000517:prevention & control*; D003296:Cooking; D003849:Deoxyguanosine / Q000031:analogs & derivatives / Q000652:urine; D004738:Engineering / Q000295:instrumentation; D004784:Environmental Monitoring / Q000379:methods; D004867:Equipment Design; D006801:Humans; D008297:Male; D008315:Malondialdehyde / Q000652:urine; D008875:Middle Aged; D016273:Occupational Exposure / Q000032:analysis / Q000517:prevention & control*; D018384:Oxidative Stress; D052638:Particulate Matter / Q000302:isolation & purification; D011084:Polycyclic Aromatic Hydrocarbons / Q000302:isolation & purification; D012147:Restaurants / Q000295:instrumentation*; D055815:Young Adult
chemical_list: D000395:Air Pollutants, Occupational; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D008315:Malondialdehyde; D000080242:8-Hydroxy-2'-Deoxyguanosine; D003849:Deoxyguanosine