Pollutant Emission Factors for Different Categories of Vehicles
(1986-1990 to 2006-2010)
Year	Type	Specified pollutant (gm/km)
		CO	HC	NOX	PM	Benzene	Butadiene
1986-1990	2W 2T (a,b)	6.5	3.9	0.03	0.23	0.226/0.074	0.010/0.008
1991-1995		6.5	3.9	0.03	0.23	0.226/0.074	0.010/0.008
1996-2000		4	3.3	0.06	0.1	0.191/0.062	0.008/0.007
2001-2005		2.2	2.13	0.07	0.05	0.123/0.040	0.005/0.004
2006-2010		1.4	1.32	0.08	0.05	0.076/0.025	0.003/0.003
1986-1990	2W 4T (a,c)	3	0.8	0.31	0.07	0.061/0.036	0.008/0.007
1991-1995		3	0.8	0.31	0.07	0.061/0.036	0.008/0.007
1996-2000		2.6	0.7	0.3	0.06	0.053/0.031	0.007/0.006
2001-2005		2.2	0.7	0.3	0.05	0.053/0.031	0.007/0.006
2006-2010		1.4	0.7	0.3	0.05	0.053/0.031	0.007/0.006
1986-1990	3W 2T (a,c)	14	8.3	0.05	0.35	0.481/0.157	0.021/0.019
1991-1995		14	8.3	0.05	0.35	0.481/0.157	0.021/0.019
1996-2000		8.6	7	0.09	0.15	0.406/0.133	0.018/0.016
2001-2005		4.3	2.05	0.11	0.08	0.118/0.038	0.005/0.004
2006-2010		2.45	0.75	0.12	0.08	0.043/0.014	0.002/0.001
1986-1990	PCG (f,g)	9.8	1.7	1.8	0.06	0.130/0.076	0.019/0.014
1991-1995		9.8	1.7	1.8	0.06	0.130/0.076	0.019/0.014
1996-2000		3.9	0.8	1.1	0.05	0.061/0.036	0.009/0.007
2001-2005		1.98	0.25	0.2	0.03	0.019/0.011	0.003/0.002
2006-2010		1.39	0.15	0.12	0.02	0.011/0.006	0.001/0.001
1986-1990	PCD (h)	7.3	0.37	2.77	0.84	0.022	0.007
1991-1995		7.3	0.37	2.77	0.84	0.022	0.007
1996-2000		1.2	0.37	0.69	0.42	0.022	0.007
2001-2005		0.9	0.13	0.5	0.07	0.007	0.002
2006-2010		0.58	0.05	0.45	0.05	0.003	0.001
1986-1990	LCV (f)	8.7	0.34	3.15	0.8	0.017	0.005
1991-1995		8.7	0.34	3.15	0.8	0.017	0.005
1996-2000		6.9	0.28	2.49	0.5	0.014	0.004
2001-2005		5.1	0.14	1.28	0.2	0.007	0.002
2006-2010		0.72	0.063	0.59	0.07	0.003	0.001
1986-1990	Truck (j)	5.5	1.78	9.5	1.5	0.01	0.002
1991-1995		5.5	1.78	9.5	1.5	0.01	0.002
1996-2000		4.5	1.21	8.4	0.8	0.006	0.001
2001-2005		3.6	0.87	6.3	0.28	0.004	0.0008
2006-2010		3.2	0.87	5.5	0.12	0.004	0.0008
1986-1990	Bus (k)	5.5	1.78	19	3	0.01	0.002
1991-1995		5.5	1.78	19	3	0.01	0.002
1996-2000		4.5	1.21	16.8	1.6	0.006	0.001
2001-2005		3.6	0.87	12	0.56	0.004	0.0008
2006-2010		3.2	0.87	11	0.24	0.004	0.0008
Abbr. :	2W : Two Wheelers.
	3W : Three Wheelers.
	2T : Two Stroke.
	4T : Four Stroke.
	PCG : Passenger Car (Gasoline)
	PCD : Paassenger Car (Diesel)
Note :	For gasoline MUV EF are same as PCG.
	For diesel MUV EF are same as PCD.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.
	For gasoline vehicles EF of Benzene corresponds to 2000/2001 fuels.