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Vehicle Emissions Reduction

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Asia: Vehicle information

2-3 Wheelers

  • Motorcycles and tricycles comprise up to 75% of Asia's vehicle fleet
  • Up to 85% of them use 2-stroke engines
  • They emit up to 70% of total hydrocarbons, 40% of total carbon monoxide, and a substantial amount of particulate matter

Tables and graphs

Vehicle population by type in selected Asian countries

Source: M. Walsh, 2-3 Wheelers in Asia and Their Impact on the Environment

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Motorcycle Production

China, Japan, India, and Taipei,China are the largest producers

Source: M. Walsh, 2-3 Wheelers in Asia and Their Impact on the Environment

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Motorcycle Registrations

Source: M. Walsh, 2-3 Wheelers in Asia and Their Impact on the Environment

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Global trends in total vehicle population (excluding motorcycles)

Source: M. Walsh, Health and Environmental Impacts of Motor Vehicle Emissions

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Motorcycle Population by Type     

Source: J. Shah, Urban Pollution from Two Stroke Engine Vehicles in Asia

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The views presented in this section do not necessarily reflect the views or position of ADB, or its Board of Directors or the Governments they represent. ADB does not guarantee the accuracy of the data included beyond these links and accepts no responsibility for consequences arising from their use. The term "country" does not imply any judgment by ADB as to the legal or other status of any territorial entity.
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