Modeling Performance of Engineering Controls When Reductions Are Largest at the Highest Environmental Concentrations of the Hazardous Contaminant

Details

• Personal Author:
  Mead, Kenneth R. ; Mickelsen L ; Shulman S
• Description:
  Engineering controls are often compared outdoors using randomized pairs to determine if a new control design reduces worker exposure to airborne hazardous contaminants - when compared to an uncontrolled work environment. A common occurrence is that the ratio of means (of controlled-to-uncontrolled work environments) depends upon concentration. When the uncontrolled environment is at its highest concentrations, the engineering control has greatest impact and the ratio is smallest (reduction is largest). Such interaction may arise outdoors because of wind and other natural conditions that vary contaminant concentrations. The following approaches to model this interaction are compared: a.) model estimates reduction separately for upper 25% of uncontrolled samples and for lower 75%; b.) model -based on Tukey's one degree of freedom model for interaction; c.) model generalizes Tukey's model. The ability of the approaches to model the interaction is compared. [Description provided by NIOSH]
• Subjects:
  Engineering Occupational Health Safety Software
• Keywords:
  Analytical-models Computer-models Engineering-controls Mathematical-models Models Statistical-analysis
• Publisher:
  American Statistical Association
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  New York ; Ohio ; OSHA Region 2 ; OSHA Region 3 ; OSHA Region 5 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20025582
• Citation:
  Proceedings of the 2002 American Statistical Association, Section on Statistics and the Environment. Alexandria, VA: American Statistical Association, 2003 Mar; :3227-3232
• Contact Point Address:
  4676 Columbia Parkway, MS- R3 , Cincinnati, Ohio, 45226, USA
• Federal Fiscal Year:
  2003
• Peer Reviewed:
  False
• Source Full Name:
  Proceedings of the 2002 American Statistical Association, Section on Physical and Engineering Sciences
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:55aa1c176b6822eeffaadc1caa4b3a20a88c6cc13217009c131aa235643bcd9dd9fb1e4a38d420a31a206e71f62dbf376b6094620ae474d1aedd33e28b6a269e
• Download URL:
  https://stacks.cdc.gov/view/cdc/196878/cdc_196878_DS1.pdf
• File Type:
  [PDF - 619.20 KB ]