STUDY ON AUTOMOTIVE PARTICULATE EMISSIONS (PART 1). ANALYSIS OF DEPOSITS AND PARTICULATE EMISSIONS OF LEAD COMPOUNDS

In May 1970 it was reported that excessive lead was detected in the blood of people living in Usigome Yanagicho, Tokyo, the first case of its kind in Japan. This report describes an analysis of lead and other particles in car engines, exhaust systems and exhaust gases. Apparatus developed to measure size distribution, volume, concentration and shape of emitted particles, is also described. Some of the results obtained are as follows: 20-40% of the lead contained in fuel is emitted under ordinary driving conditions, the emission ratio increasing with speed and/or load - the lower and lighter the engine speed and load, the greater is the emission of fine lead particles (smaller than 0.1 microns), which account for more than 80% by weight of overall lead emissions - air chamber gravitation tests show that airborne particles take about 24 hours to move 1 metre - x ray microprobe analysis show the iron, carbon and lead distributions in particles. Liquid particles which have high boiling points exist in exhaust gases, and some examples are shown in photomicrographs from exhaust emissions and the road side atmosphere. /TRRL/

• Corporate Authors:

  Traffic Safety & Nuisance Research Inst, Japan

  Ministry of Transport
  Tokyo, ZZ Jpan   

  Traffic Safety & Nuisance Research Inst, Japan

  Ministry of Transport
  Tokyo, ZZ Jpan   
• Authors:
  • Yoshihara, K
  • ABE, T
  • Odaka, M
  • Takizawa, T
  • SATO, Y
• Publication Date: 1975-3

Language

• Japanese

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 165-203
• Serial:
  • Traffic Safety & Nuisance Research Institute Rpt
  • Volume: 50
  • Issue Number: 3
  • Publisher: Traffic Safety & Nuisance Research Inst, Japan

Subject/Index Terms

• TRT Terms: Air pollution; Equipment; Exhaust gases; Fuels; Gases; Lead (Metal); Lead compounds; Loads; Measurement; Measuring instruments; Motors; Particulates; Speed; Tests; Vehicle power plants; Vehicles
• Uncontrolled Terms: Particle size distribution
• Geographic Terms: Japan
• Old TRIS Terms: Automobile engines; Photomicrographs
• ITRD Terms: 1057: Air transport network; 6155: Apparatus (measuring); 1394: Catalytic converter; 2442: Emission; 3674: Equipment; 3850: Fuel; 6734: Gas; 8053: Japan; 7138: Lead (metal); 6136: Measurement; 1334: Motor; 6255: Test
• Subject Areas: Energy; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00163198
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: May 18 1978 12:00AM