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Size Distribution of Particulate Matter Emitted from Diesel Vehicles in Thailand

Size Distribution of Particulate Matter Emitted from Diesel Vehicles in Thailand. Mr.ITTIPOL Paw-armart Environmental Officer Pollution Control Department Bangkok, Thailand. Background of Problem. Number of Vehicles Traffic condition Effectiveness of I/M System Fuel Quality

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Size Distribution of Particulate Matter Emitted from Diesel Vehicles in Thailand

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  1. Size Distribution of Particulate Matter Emitted from Diesel Vehicles in Thailand Mr.ITTIPOL Paw-armart Environmental Officer Pollution Control Department Bangkok, Thailand

  2. Background of Problem • Number of Vehicles • Traffic condition • Effectiveness of I/M System • Fuel Quality • Vehicle Characteristics • Lack of Transport & Land use planning

  3. Objectives • Studies size distribution of PM emitting from diesel vehicles ( LD and HD vehicles) • Explores the concentration of PM; different by size, emitting from diesel vehicles (LD and HD vehicles)

  4. Equipments and Experiments • Location : PCD Emission Laboratory • Sampled vehicles • LD 12 vehicles • HD 15 vehicles

  5. Equipments & Methods • Cascade Impactor “Micro Orific Uniform Deposit Impactor (MOUDI)” • CVS (Constant Volume Sampler System)

  6. Classification of PM using MOUDI

  7. PCD Emission Laboratory

  8. BKK Driving Cycle for LD Vehicles BKK Driving Cycle for HD Vehicles

  9. Size Distribution of PM emitted from LD and HD vehicles

  10. Size Distribution of PM emitted from LD and HD vehicles

  11. Size Distribution of PM emitted from LD and HD vehicles

  12. Conclusion • LDV PM size less than PM10 89.41% PM size less than PM2.5 66.60% PM size 0.18-0.32 micron as 11.674 mg/m3 (20.27%) • HDV PM size less than PM10 91.77% PM size less than PM2.5 76.49% PM size 0.56-1.0 micron as 14.471 mg/m3 (17.82%)

  13. Further study Analyze chemical components of PM - PAHs - TC, OC and EC - Ionic species (Na+ , SO42-) - Element composition (Al, As, Ba ect.) Characteristic of PM from different Bio-diesels fuels such as palm oil, used cooking oil and coconut oil ect. Develop PM emission factor

  14. Thank you very muchfor your attentionwww.pcd.go.th

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