TOXICOLOGICALLY ACCEPTABLE LEVELS OF METHANOL AND FORMALDEHYDE EMISSIONS FROM METHANOL-FUELED VEHICLES

The increased interest in use of methanol makes it important to determine what levels of methanol and formaldehyde emissions may be acceptable. This paper reviews the available health data for methanol and formaldehyde to define what approximate ranges of concentrations, termed ranges of concern, could be acceptable from a toxicological viewpoint. Air quality models are then used to predict the in-use fleet average exhaust emission levels in localized situations (heavily impacted by mobile sources) corresponding to these ranges of concern. Using predicted fleet compositions, approximate target emission levels are given for the light-duty portion of the fleet which could yield these fleet averages. Finally, there is a brief summary of available methanol and formaldehyde emissions data from neat methanol-fueled vehicles which are compared to the target levels. In general, most of the design targets have already been met by current neat methanol-fueled vehicles, but some situations may require specific attention with respect to the design of emission control systems (e.g., cold start exhaust and hot soak evaporative emissions). For the covering abstract see IRRD 287297. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0898838096
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Harvey, C A
  • Carey, P M
  • Somers, J H
  • Garbe, R J
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 67-82
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Air pollution; Exhaust gases; Forecasting; Formaldehyde; Light vehicles; Mathematical models; Methanol; Toxicity
• ITRD Terms: 6714: Air; 1394: Catalytic converter; 2442: Emission; 132: Forecast; 3850: Fuel; 2144: Health; 6473: Mathematical model; 7338: Methanol; 1334: Motor; 9063: Quality; 2142: Toxicity; 1255: Vehicle
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00464943
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-89883-809-6
• Report/Paper Numbers: SAE-TP-841357, SAE-SP-588
• Files: ITRD, TRIS
• Created Date: Jan 31 1988 12:00AM