Year | Sulfur dioxide | INDUS DIXO | Nitrogen oxides | NITRO INDUS | NITRO by CAR | Micro Particle Susp + Smock | Micro indus + Smock Indus | Micro Particle Domestic | Micro particle by car |
2011 | 22.17 | 20.17 | 24.04 | 17.29 | 6.37 | 12.78 | 11.00 | 1.14 | 0.629 |
2012 | 21.17 | 19.11 | 23.37 | 16.58 | 6.40 | 12.34 | 10.29 | 1.42 | 0.620 |
2013 | 20.43 | 18.35 | 22.27 | 15.45 | 6.40 | 12.78 | 10.94 | 1.23 | 0.594 |
2014 | 19.74 | 17.40 | 20.78 | 14.05 | 6.28 | 17.40 | 14.56 | 2.27 | 0.574 |