COMPOSITION, SIZE AND CONTROL OF AUTOMOTIVE EXHAUST PARTICULATES

TOTAL PARTICULTE COMPOSITION, SIZE OF EXHAUSTED LEAD PARTICULATES, AND THE EFFECTS OF TRAPS ON TOTAL LEAD EMITTED ARE DESCRIBED. WORK IN SUSPENDED PARTICULATE EMISSION FROM SEVERAL VEHICLES OPERATED ON A CHASSIS DYNAMOMETER UNDER FEDERAL 7-MODE CYCLE CONDITIONS HAS SHOWN THAT CARS VARY WIDELY IN THE AMOUNTS AND COMPOSITION OF THEIR PARTICULTE EMISSIONS. COLD-CYCLE OPERATION GIVES 2-8 TIMES MORE PARTICULATE THAN HOT ENGINE OPERATION; LEAD COMPOUNDS REPRESENT LESS THAN ONE-THIRD OF TOTAL PARTICULATES, THE REMAINDER BEING CARBON COMPOUNDS ALONG WITH AMMONIUM AND NITRATE IONS AND UNKNOWN MATERIALS; FUEL ADDITIVES AFFECT THE AMOUNT OF EMITTED PARTICULATES; PROBE SAMPLING TECHNIQUES UNDERESTIMATE, BY A LARGE FACTOR, THE AMOUNT OF PARTICULATES EMITTED BY VEHICLES; AND TRAPPING SYSTEMS OFFER POTENTIAL FOR GREATLY REDUCING THE EMISSION OF SUSPENDED TOTAL PARTICULATES. /AUTHOR/

• Supplemental Notes:
  • Vol 22, No 1, PP 39-46
• Authors:
  • Ter, HAAR GL
• Publication Date: 1972-1

Media Info

• Serial:
  • Air Pollution Control Association, Journal of
  • Publisher: Air Pollution Control Association

Subject/Index Terms

• TRT Terms: Air quality management; Automobiles; Exhaust gases; Lead (Metal); Particles; Traps (Drain pipe)
• Old TRIS Terms: Exhaust emission control; Traps
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00223710
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 7 1972 12:00AM