SIMULTANEOUS MEASUREMENTS OF OZONE OUTSIDE AND INSIDE CABINS OF TWO B-747 AIRLINERS AND A GATES LEARJET BUSINESS JET

The average amount of ozone measured in the cabins of two B-747 airliners varied from 40 percent to 80 percent of the atmospheric concentrations without special ozone destruction systems. A charcoal filter in the cabin air inlet system of one B-747 reduced the ozone to about 5 percent of the atmospheric concentration. A Learjet 23 was also instrumented with monitors to measure simultaneously the atmospheric and ozone concentrations. Results indicate that a significant portion of the atmospheric ozone is not destroyed in the pressurization system and remains in the aircraft cabin of the Learjet. For the two cabin configurations tested, the ozone retentions were 63 and 41 percent of the atmospheric ozone concentrations. Ozone concentrations measured in the cabin near the conditioned-air outlets were reduced only slightly from atmospheric ozone concentrations. It is concluded that a constant difference between ozone concentrations inside and outside the cabin does not exist.

• Supplemental Notes:
  • Conf-Proposed for Presentation at the Conf. On Atmospheric Environ. Of Aerospace Systems and Appl. Meteorology, New York, 13-16 Nov. 1978; Sponsored by the AM. Meteorol. Soc. and the AIAA.
• Corporate Authors:

  Department of the Navy

  The Pentagon
  Washington, DC  United States  20350
• Authors:
  • PERKINS, P J
  • Briel, D
• Publication Date: 1978

Media Info

• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Air conditioning systems; Air quality; Aircraft; Aircraft cabins; Aircraft operations; Airlines; Atmosphere; Business aircraft; Hazards; Ozone; Pressurization; Toxicity
• Identifier Terms: Boeing 747 aircraft; Learjet aircraft
• Old TRIS Terms: Aircraft hazards; Airline operations; Atmospheric composition; Ozonometry; Toxic hazards
• Subject Areas: Aviation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00186542
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-TM-78983
• Files: TRIS
• Created Date: Feb 27 1979 12:00AM