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Table 2 PM emission factor by vehicle category and age group in India (from Baidya et al. 2009)

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

Gram/km Vehicles manufactured
2001- 2005 1996–2000 1991–1995 Before 1991
Heavy duty truck (diesel) 0.49 1.22 2.03 2.7
Bus (diesel) 0.59 1.49 2.48 3.3
Diesel car (diesel) 0.19 0.46 0.77 1.03
Diesel car (gasoline) 0.06 0.07 0.09 0.1
Motorbike (2 stroke, gasoline) 0.18 0.26 0.32 0.46
Motorbike (4 stroke, gasoline) 0.06 0.08 0.1 0.14