Category-wise Emission Load of Vehicles in Delhi during 2000 and 2005 
 (in Thousand Tonnes)
Vehicles CO HC NOX PM Benzene BUTDN Ozonne Potential
2000 2005 2000 2005 2000 2005 2000 2005 2000 2005 2000 2005 2000 2005
Buses 21.868 24.747 5.606 5.528 70.598 76.435 10.421 6.384 0.029 0.026 0.005 0.005 19.415 19.160
LCV 102.960 2.204 3.617 0.421 33.049 1.020 9.713 0.510 0.181 0.024 0.053 0.008 12.514 1.461
MUV-G 18.961 595.193 3.441 102.988 3.956 114.586 0.148 5.380 0.212 6.358 0.031 0.938 7.490 357.016
MUV-D 42.633 2.875 2.162 0.501 19.306 1.432 9.302 0.572 0.162 0.029 0.054 0.009 5.887 1.736
PCG 521.310 16.010 94.032 2.243 106.940 3.108 3.954 0.168 5.973 0.168 0.875 0.025 325.962 7.775
PCD 1.328 30.160 0.297 1.804 0.647 16.118 0.397 7.292 0.018 0.175 0.006 0.058 1.026 6.255
Taxis 5.284 63.414 0.464 44.806 1.766 0.969 0.868 1.130 0.028 1.576 0.009 0.069 1.594 155.323
Trucks 52.556 40.241 12.112 11.340 70.472 4.773 15.374 0.927 0.066 0.669 0.013 0.088 41.980 39.310
3W 113.880 391.206 75.807 281.820 0.665 4.469 2.564 6.657 2.744 4.014 0.121 0.436 262.766 1028.249
4S/2W 32.883 55.252 8.820 11.582 3.638 74.722 0.762 11.866 0.314 0.059 0.061 0.011 30.575 40.150
2S/2W 548.870 104.609 356.480 3.303 3.787 30.039 18.168 7.830 5.164 0.165 0.566 0.048 1300.655 11.451
Total 1462.500 1325.911 562.840 466.336 314.820 327.672 71.671 48.714 14.890 13.263 1.792 1.695 2009.865 1667.886