LARGE-SCALE MONITORING OF AUTOMOBILE EXHAUST PARTICULATES; METHODS AND COST

THE HYPOTHETICAL PROBLEM ADDRESSED IS ANNUAL MONITORING OF 150 MILLION CARS FOR EXHAUST PARTICLATES. FOUR TOPICS ARE REVIEWED CONCERNING THE PARTICLATES: TOTAL MASS EXPRESSED IN GRAMS PER MILE; PARTICLE SIZE DISTRIBUTION; ELEMENTAL ANALYSIS; STATE OF CHEMICAL COMBINATION. AT PRESENT THE ONLY SPECIFICATION IS IN GRAMS PER MILE BUT CONSIDERATION IS BEING GIVEN TO PARTICLE SIZE AND TO ELEMENTAL ANALYSIS OF KNOWN HARMFUL CONSTITUENTS. SINCE MANUFACTURERS WILL NOT BE TOLD HOW TO MEET THE SPECIFICATIONS, A WIDE VARIETY OF EMISSION CONTROL SYSTEMS MAY BE EXPECTED AND ALONG WITH THEM A WIDE VARIETY OF PARTICULATE COMPOSITIONS. /AUTHOR/

• Corporate Authors:

  Naval Research Lab /US

  ,    
• Authors:
  • Birks, L S
  • Gilfrich, J V
  • Nagel, D J
• Publication Date: 1971-10

Media Info

• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Automobiles; Costs; Emission control systems; Methodology; Monitoring; Particulates; Pollutants; Specifications
• Subject Areas: Finance; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00224036
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rept
• Files: TRIS
• Created Date: Aug 15 1973 12:00AM