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Table 4 Estimated BC emission from on-road mobile sources in India

From: Climatic benefits of black carbon emission reduction when India adopts the US on-road emission level

Vehicle technology

BC/PM2.5

PM emission (Gigagram/year)

BC emission = (BC/PM) ratio PM emission (Gigagram/year)

Indian on-road emission level

 On-road diesel vehicles

0.74

465.5

344.5

 On-road gasoline vehicles

0.19

41.3

7.8

US on-road emission level

 On-road diesel vehicles

0.74

145.2

107.5

 On-road gasoline vehicles

0.19

9.3

1.8

  1. BC emission reduction in switching from Indian emission levels to US emission levels = 243 Gigagram