Year SOx NMVOCs NOx PM2.5 NH3 Primary PM2.5 SOx change NMVOC change NOx change PM2.5 change NH3 change
1990 27216 18378 18417 5750 100 100 100 100
1991 25199 17691 18040 5484 92.59 96.26 97.96 95.37
1992 23251 17031 17758 5216 85.43 92.67 96.42 90.71
1993 21914 16486 17132 5078 80.52 89.7 93.02 88.31
1994 20381 15346 16386 4948 74.89 83.5 88.98 86.05
1995 18749 14870 16091 4883 68.89 80.91 87.37 84.92
1996 17651 14753 15943 4921 64.85 80.27 86.57 85.58
1997 16731 14326 15324 4903 61.48 77.95 83.21 85.26
1998 15196 13826 14926 4926 55.84 75.23 81.04 85.67
1999 13467 13186 14445 4939 49.48 71.75 78.43 85.89
2000 12469 12426 14067 1670 4848 45.82 67.61 76.38 100.0 84.31
2001 11820 11971 13837 1659 4779 43.43 65.14 75.13 99.35 83.11
2002 11187 11433 13525 1579 4703 41.11 62.21 73.44 94.59 81.78
2003 10725 11099 13468 1600 4720 39.41 60.39 73.13 95.83 82.08
2004 10114 10773 13289 1553 4690 37.16 58.62 72.16 93.03 81.57
2005 9871 10461 13031 1553 4651 36.27 56.92 70.75 93.02 80.88
2006 9856 10232 12774 1517 4687 36.21 55.68 69.36 90.85 81.5
2007 9868 9897 12483 1501 4677 36.26 53.85 67.78 89.92 81.33
2008 8173 9510 11625 1502 4565 30.03 51.75 63.12 89.95 79.39
2009 7474 8950 10685 1435 4518 27.46 48.7 58.02 85.96 78.57
2010 7101 8974 10515 1478 4473 26.09 48.83 57.1 88.53 77.79
2011 7124 8567 10336 1349 4509 26.18 46.61 56.12 80.8 78.41
2012 6763 8412 9939 1367 4532 24.85 45.77 53.97 81.87 78.81
2013 5432 8092 9480 1340 5068 19.96 44.03 51.48 80.27 88.14
2014 5320 7912 9104 1249 5097 19.55 43.05 49.43 74.83 88.64