Contaminant reduction by ventilation in a confined space model - toxic concentrations versus oxygen deficiency

Details

• Personal Author:
  Garrison RP ; Lee K ; Park C ; Garrison RP ; Lee K ; Park C
• Description:
  A study was conducted to test and evaluate ventilation performance for air contaminants in a confined space (CS) model at concentrations much lower than those that cause oxygen deficiency. Isobutylene (115117) (IBE) was selected to simulate toxic concentrations because it was relatively safe to use and relatively easy to monitor. Data were obtained at several locations in a CS cubical model with variable ventilation mode, volume flow rate, and ventilation inlet/outlet elevations. The results indicated that ventilation causes contaminant reduction in a generally similar manner across a broad range of concentrations, from potentially toxic to oxygen deficient levels. Supply ventilation was generally more effective than exhaust ventilation for reducing contaminant concentrations ranging from the simulated toxic levels of IBE tested to much higher levels associated with oxygen deficiency. The authors conclude that specific empirical data may have good accuracy for some CS ventilation situations and may have limited accuracy for other contaminant conditions. [Description provided by NIOSH]
• Subjects:
  Accident Prevention Accidents Confined Spaces Environmental Monitoring Hazardous Substances Occupational Health Safety Ventilation
• Keywords:
  Accident-prevention Air-quality-control Air-quality-monitoring Confined-spaces NIOSH-Publication Simulation-methods Toxic-gases Ventilation-systems
• ISSN:
  0002-8894
• Document Type:
  Text
• Genre:
  Journal Article ; Journal Article
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Volume:
  52
• Issue:
  12
• NIOSHTIC Number:
  nn:00204886
• Citation:
  Am Ind Hyg Assoc J 1991 Dec; 52(12):542-546
• CAS Registry Number:
  Isobutylene (CAS RN 115-11-7) ; Isobutylene (CAS RN 115-11-7)
• Federal Fiscal Year:
  1992
• Peer Reviewed:
  True
• Source Full Name:
  American Industrial Hygiene Association Journal
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5083b02b0bd902616c5c44ee4291d5a0ed82d7f5d832f3a1ad2b2b6062928f2f5ba26856026ab8ead2b6eeebf20f1ced088964e989c62230b26a25cec15e38ef
• Download URL:
  https://stacks.cdc.gov/view/cdc/204395/cdc_204395_DS1.pdf
• File Type:
  [PDF - 615.28 KB ]