| Year | Pollutant | Emissions | Index | Emissions (indexed) |
|---|---|---|---|---|
| 1990 | NMVOC | 100.0 | ||
| 1990 | NOx | 100.0 | ||
| 1990 | SOx | 100.0 | ||
| 1991 | NMVOC | 94.5 | ||
| 1991 | NOx | 98.7 | ||
| 1991 | SOx | 95.6 | ||
| 1992 | NMVOC | 92.9 | ||
| 1992 | NOx | 99.8 | ||
| 1992 | SOx | 95.7 | ||
| 1993 | NMVOC | 88.1 | ||
| 1993 | NOx | 98.4 | ||
| 1993 | SOx | 99.1 | ||
| 1994 | NMVOC | 82.1 | ||
| 1994 | NOx | 95.1 | ||
| 1994 | SOx | 95.0 | ||
| 1995 | NMVOC | 77.9 | ||
| 1995 | NOx | 93.7 | ||
| 1995 | SOx | 89.6 | ||
| 1996 | NMVOC | 75.6 | ||
| 1996 | NOx | 93.9 | ||
| 1996 | SOx | 89.5 | ||
| 1997 | NMVOC | 71.0 | ||
| 1997 | NOx | 92.9 | ||
| 1997 | SOx | 87.0 | ||
| 1998 | NMVOC | 66.5 | ||
| 1998 | NOx | 92.7 | ||
| 1998 | SOx | 92.4 | ||
| 1999 | NMVOC | 61.8 | ||
| 1999 | NOx | 90.8 | ||
| 1999 | SOx | 88.2 | ||
| 2000 | NMVOC | 54.3 | ||
| 2000 | NOx | 86.5 | ||
| 2000 | SOx | 82.3 | ||
| 2001 | NMVOC | 49.7 | ||
| 2001 | NOx | 84.8 | ||
| 2001 | SOx | 85.3 | ||
| 2002 | NMVOC | 44.8 | ||
| 2002 | NOx | 82.0 | ||
| 2002 | SOx | 81.8 | ||
| 2003 | NMVOC | 41.1 | ||
| 2003 | NOx | 82.0 | ||
| 2003 | SOx | 87.9 | ||
| 2004 | NMVOC | 37.1 | ||
| 2004 | NOx | 82.8 | ||
| 2004 | SOx | 90.7 | ||
| 2005 | NMVOC | 33.1 | ||
| 2005 | NOx | 80.9 | ||
| 2005 | SOx | 88.2 | ||
| 2006 | NMVOC | 29.9 | ||
| 2006 | NOx | 81.3 | ||
| 2006 | SOx | 89.9 | ||
| 2007 | NMVOC | 26.6 | ||
| 2007 | NOx | 80.7 | ||
| 2007 | SOx | 90.2 | ||
| 2008 | NMVOC | 23.8 | ||
| 2008 | NOx | 76.8 | ||
| 2008 | SOx | 85.6 | ||
| 2009 | NMVOC | 21.3 | ||
| 2009 | NOx | 71.5 | ||
| 2009 | SOx | 81.3 | ||
| 2010 | NMVOC | 19.1 | ||
| 2010 | NOx | 68.9 | ||
| 2010 | SOx | 72.5 | ||
| 2011 | NMVOC | 18.0 | ||
| 2011 | NOx | 67.9 | ||
| 2011 | SOx | 73.3 | ||
| 2012 | NMVOC | 16.4 | ||
| 2012 | NOx | 64.2 | ||
| 2012 | SOx | 70.9 | ||
| 2013 | NMVOC | 15.1 | ||
| 2013 | NOx | 60.9 | ||
| 2013 | SOx | 58.3 | ||
| 2014 | NMVOC | 14.3 | ||
| 2014 | NOx | 59.9 | ||
| 2014 | SOx | 58.6 | ||
| 2015 | NMVOC | 14.2 | ||
| 2015 | NOx | 59.4 | ||
| 2015 | SOx | 51.3 | ||
| 2000 | PM2.5 | 100.0 | ||
| 2001 | PM2.5 | 98.6 | ||
| 2002 | PM2.5 | 96.7 | ||
| 2003 | PM2.5 | 98.2 | ||
| 2004 | PM2.5 | 99.6 | ||
| 2005 | PM2.5 | 97.4 | ||
| 2006 | PM2.5 | 92.1 | ||
| 2007 | PM2.5 | 91.9 | ||
| 2008 | PM2.5 | 88.2 | ||
| 2009 | PM2.5 | 82.5 | ||
| 2010 | PM2.5 | 76.6 | ||
| 2011 | PM2.5 | 74.0 | ||
| 2012 | PM2.5 | 69.3 | ||
| 2013 | PM2.5 | 63.0 | ||
| 2014 | PM2.5 | 60.8 | ||
| 2015 | PM2.5 | 57.7 | ||
| 1990 | CO | 100.0 | ||
| 1991 | CO | 97.1 | ||
| 1992 | CO | 93.0 | ||
| 1993 | CO | 88.8 | ||
| 1994 | CO | 81.2 | ||
| 1995 | CO | 77.4 | ||
| 1996 | CO | 74.8 | ||
| 1997 | CO | 68.8 | ||
| 1998 | CO | 64.4 | ||
| 1999 | CO | 59.5 | ||
| 2000 | CO | 53.7 | ||
| 2001 | CO | 50.1 | ||
| 2002 | CO | 46.0 | ||
| 2003 | CO | 42.5 | ||
| 2004 | CO | 39.4 | ||
| 2005 | CO | 34.7 | ||
| 2006 | CO | 31.7 | ||
| 2007 | CO | 28.5 | ||
| 2008 | CO | 25.6 | ||
| 2009 | CO | 23.4 | ||
| 2010 | CO | 21.0 | ||
| 2011 | CO | 19.5 | ||
| 2012 | CO | 17.9 | ||
| 2013 | CO | 16.4 | ||
| 2014 | CO | 15.3 | ||
| 2015 | CO | 14.8 | ||
| 1990 | SOx excluding international shipping | 100.0 | ||
| 1991 | SOx excluding international shipping | 95.2 | ||
| 1992 | SOx excluding international shipping | 97.0 | ||
| 1993 | SOx excluding international shipping | 96.1 | ||
| 1994 | SOx excluding international shipping | 93.0 | ||
| 1995 | SOx excluding international shipping | 80.6 | ||
| 1996 | SOx excluding international shipping | 74.8 | ||
| 1997 | SOx excluding international shipping | 58.6 | ||
| 1998 | SOx excluding international shipping | 59.6 | ||
| 1999 | SOx excluding international shipping | 56.8 | ||
| 2000 | SOx excluding international shipping | 37.6 | ||
| 2001 | SOx excluding international shipping | 36.5 | ||
| 2002 | SOx excluding international shipping | 31.0 | ||
| 2003 | SOx excluding international shipping | 32.1 | ||
| 2004 | SOx excluding international shipping | 30.6 | ||
| 2005 | SOx excluding international shipping | 22.6 | ||
| 2006 | SOx excluding international shipping | 24.0 | ||
| 2007 | SOx excluding international shipping | 22.2 | ||
| 2008 | SOx excluding international shipping | 19.6 | ||
| 2009 | SOx excluding international shipping | 20.1 | ||
| 2010 | SOx excluding international shipping | 14.4 | ||
| 2011 | SOx excluding international shipping | 14.3 | ||
| 2012 | SOx excluding international shipping | 13.1 | ||
| 2013 | SOx excluding international shipping | 12.8 | ||
| 2014 | SOx excluding international shipping | 12.2 | ||
| 2015 | SOx excluding international shipping | 11.7 |