| Year | Pollutant | Index | Emissions | Emissions (indexed) |
|---|---|---|---|---|
| 1990 | SOx excluding international shipping | 100.0 | ||
| 1991 | SOx excluding international shipping | 95.4 | ||
| 1992 | SOx excluding international shipping | 96.3 | ||
| 1993 | SOx excluding international shipping | 94.4 | ||
| 1994 | SOx excluding international shipping | 91.1 | ||
| 1995 | SOx excluding international shipping | 78.7 | ||
| 1996 | SOx excluding international shipping | 71.0 | ||
| 1997 | SOx excluding international shipping | 53.5 | ||
| 1998 | SOx excluding international shipping | 53.6 | ||
| 1999 | SOx excluding international shipping | 49.5 | ||
| 2000 | SOx excluding international shipping | 41.9 | ||
| 2001 | SOx excluding international shipping | 39.4 | ||
| 2002 | SOx excluding international shipping | 34.0 | ||
| 2003 | SOx excluding international shipping | 34.2 | ||
| 2004 | SOx excluding international shipping | 32.5 | ||
| 2005 | SOx excluding international shipping | 26.6 | ||
| 2006 | SOx excluding international shipping | 25.6 | ||
| 2007 | SOx excluding international shipping | 23.1 | ||
| 2008 | SOx excluding international shipping | 20.4 | ||
| 2009 | SOx excluding international shipping | 18.1 | ||
| 2010 | SOx excluding international shipping | 15.4 | ||
| 2011 | SOx excluding international shipping | 14.4 | ||
| 2012 | SOx excluding international shipping | 12.5 | ||
| 2013 | SOx excluding international shipping | 12.5 | ||
| 2014 | SOx excluding international shipping | 12.7 | ||
| 2015 | SOx excluding international shipping | 11.2 | ||
| 2016 | SOx excluding international shipping | 11.1 | ||
| 2017 | SOx excluding international shipping | 12.6 | ||
| 2000 | PM2.5 | 100.0 | ||
| 2001 | PM2.5 | 99.0 | ||
| 2002 | PM2.5 | 96.9 | ||
| 2003 | PM2.5 | 98.1 | ||
| 2004 | PM2.5 | 99.4 | ||
| 2005 | PM2.5 | 97.6 | ||
| 2006 | PM2.5 | 94.3 | ||
| 2007 | PM2.5 | 92.0 | ||
| 2008 | PM2.5 | 87.9 | ||
| 2009 | PM2.5 | 82.1 | ||
| 2010 | PM2.5 | 77.4 | ||
| 2011 | PM2.5 | 73.5 | ||
| 2012 | PM2.5 | 68.0 | ||
| 2013 | PM2.5 | 63.1 | ||
| 2014 | PM2.5 | 61.0 | ||
| 2015 | PM2.5 | 57.3 | ||
| 2016 | PM2.5 | 58.3 | ||
| 2017 | PM2.5 | 56.3 | ||
| 1990 | NMVOC | 100.0 | 5881.1436117 | 5881.1436117 |
| 1990 | NOx | 100.0 | 10082.1993401 | 10082.1993401 |
| 1990 | SOx | 100.0 | 1812.72360493 | 1812.72360493 |
| 1991 | NMVOC | 94.4 | 5554.03261254 | 5881.1436117 |
| 1991 | NOx | 98.8 | 9961.4735743 | 10082.1993401 |
| 1991 | SOx | 95.6 | 1733.54679374 | 1812.72360493 |
| 1992 | NMVOC | 93.0 | 5468.58048851 | 5881.1436117 |
| 1992 | NOx | 100.2 | 10100.6677827 | 10082.1993401 |
| 1992 | SOx | 95.2 | 1725.88905744 | 1812.72360493 |
| 1993 | NMVOC | 88.0 | 5176.5582426 | 5881.1436117 |
| 1993 | NOx | 97.9 | 9874.51715196 | 10082.1993401 |
| 1993 | SOx | 96.9 | 1757.16479272 | 1812.72360493 |
| 1994 | NMVOC | 82.0 | 4824.01059824 | 5881.1436117 |
| 1994 | NOx | 94.7 | 9544.93419 | 10082.1993401 |
| 1994 | SOx | 92.0 | 1667.57053206 | 1812.72360493 |
| 1995 | NMVOC | 77.7 | 4567.42079815 | 5881.1436117 |
| 1995 | NOx | 92.8 | 9352.82846543 | 10082.1993401 |
| 1995 | SOx | 86.5 | 1568.15813809 | 1812.72360493 |
| 1996 | NMVOC | 74.7 | 4391.34389671 | 5881.1436117 |
| 1996 | NOx | 92.7 | 9347.91597 | 10082.1993401 |
| 1996 | SOx | 86.3 | 1565.22458475 | 1812.72360493 |
| 1997 | NMVOC | 69.3 | 4076.32258492 | 5881.1436117 |
| 1997 | NOx | 91.6 | 9232.11413467 | 10082.1993401 |
| 1997 | SOx | 83.1 | 1507.23879307 | 1812.72360493 |
| 1998 | NMVOC | 64.7 | 3804.27591973 | 5881.1436117 |
| 1998 | NOx | 90.8 | 9158.76937248 | 10082.1993401 |
| 1998 | SOx | 86.6 | 1570.2977754 | 1812.72360493 |
| 1999 | NMVOC | 59.6 | 3504.63179827 | 5881.1436117 |
| 1999 | NOx | 88.7 | 8947.81587515 | 10082.1993401 |
| 1999 | SOx | 83.0 | 1504.02944449 | 1812.72360493 |
| 2000 | NMVOC | 52.0 | 3055.53530458 | 5881.1436117 |
| 2000 | NOx | 86.4 | 8709.86836866 | 10082.1993401 |
| 2000 | SOx | 80.9 | 1466.88054167 | 1812.72360493 |
| 2001 | NMVOC | 47.7 | 2803.52230041 | 5881.1436117 |
| 2001 | NOx | 84.4 | 8510.95964226 | 10082.1993401 |
| 2001 | SOx | 83.0 | 1505.16757411 | 1812.72360493 |
| 2002 | NMVOC | 43.9 | 2581.2140373 | 5881.1436117 |
| 2002 | NOx | 82.9 | 8362.76500803 | 10082.1993401 |
| 2002 | SOx | 80.4 | 1457.09076269 | 1812.72360493 |
| 2003 | NMVOC | 40.0 | 2351.5217867 | 5881.1436117 |
| 2003 | NOx | 82.1 | 8274.08303494 | 10082.1993401 |
| 2003 | SOx | 85.6 | 1552.21094506 | 1812.72360493 |
| 2004 | NMVOC | 36.0 | 2115.32103602 | 5881.1436117 |
| 2004 | NOx | 83.1 | 8380.47536513 | 10082.1993401 |
| 2004 | SOx | 87.9 | 1592.59280528 | 1812.72360493 |
| 2005 | NMVOC | 33.3 | 1956.24848732 | 5881.1436117 |
| 2005 | NOx | 82.1 | 8274.33348246 | 10082.1993401 |
| 2005 | SOx | 86.4 | 1566.99184385 | 1812.72360493 |
| 2006 | NMVOC | 30.0 | 1764.75513523 | 5881.1436117 |
| 2006 | NOx | 81.7 | 8241.5628627 | 10082.1993401 |
| 2006 | SOx | 64.4 | 1167.21703267 | 1812.72360493 |
| 2007 | NMVOC | 26.8 | 1577.38107842 | 5881.1436117 |
| 2007 | NOx | 80.5 | 8120.42856426 | 10082.1993401 |
| 2007 | SOx | 59.6 | 1079.93062313 | 1812.72360493 |
| 2008 | NMVOC | 24.3 | 1427.78985868 | 5881.1436117 |
| 2008 | NOx | 77.2 | 7781.06797947 | 10082.1993401 |
| 2008 | SOx | 56.1 | 1014.27541468 | 1807.80676393 |
| 2009 | NMVOC | 21.7 | 1277.56014687 | 5881.1436117 |
| 2009 | NOx | 71.9 | 7253.11249824 | 10082.1993401 |
| 2009 | SOx | 51.8 | 936.107527921 | 1807.80676393 |
| 2010 | NMVOC | 19.7 | 1159.18840206 | 5881.1436117 |
| 2010 | NOx | 69.7 | 7031.69207087 | 10082.1993401 |
| 2010 | SOx | 45.0 | 813.91998878 | 1807.80676393 |
| 2011 | NMVOC | 18.0 | 1058.69344177 | 5881.1436117 |
| 2011 | NOx | 68.1 | 6867.20381258 | 10082.1993401 |
| 2011 | SOx | 43.3 | 783.041033653 | 1807.80676393 |
| 2012 | NMVOC | 16.4 | 963.559761056 | 5881.1436117 |
| 2012 | NOx | 64.3 | 6478.21739099 | 10082.1993401 |
| 2012 | SOx | 42.2 | 762.256656554 | 1807.80676393 |
| 2013 | NMVOC | 15.3 | 897.713070424 | 5881.1436117 |
| 2013 | NOx | 62.0 | 6251.01562847 | 10082.1993401 |
| 2013 | SOx | 38.6 | 698.381148848 | 1807.80676393 |
| 2014 | NMVOC | 14.4 | 846.088218065 | 5881.1436117 |
| 2014 | NOx | 61.3 | 6175.87891886 | 10082.1993401 |
| 2014 | SOx | 37.9 | 684.51488443 | 1807.80676393 |
| 2015 | NMVOC | 13.7 | 806.101283002 | 5881.1436117 |
| 2015 | NOx | 60.0 | 6044.66264953 | 10082.1993401 |
| 2015 | SOx | 32.0 | 578.64549602 | 1807.80676393 |
| 2016 | NMVOC | 13.4 | 786.197223752 | 5881.1436117 |
| 2016 | NOx | 60.0 | 6045.59377655 | 10082.1993401 |
| 2016 | SOx | 34.2 | 617.372661335 | 1807.80676393 |
| 2017 | NMVOC | 13.2 | 775.938879896 | 5881.1436117 |
| 2017 | NOx | 59.2 | 5972.24905365 | 10082.1993401 |
| 2017 | SOx | 35.4 | 640.940433652 | 1812.72360493 |
| 1990 | CO | 100.0 | ||
| 1991 | CO | 97.3 | ||
| 1992 | CO | 95.2 | ||
| 1993 | CO | 90.9 | ||
| 1994 | CO | 83.5 | ||
| 1995 | CO | 78.4 | ||
| 1996 | CO | 76.1 | ||
| 1997 | CO | 69.6 | ||
| 1998 | CO | 65.0 | ||
| 1999 | CO | 60.0 | ||
| 2000 | CO | 52.5 | ||
| 2001 | CO | 49.5 | ||
| 2002 | CO | 45.6 | ||
| 2003 | CO | 41.9 | ||
| 2004 | CO | 38.5 | ||
| 2005 | CO | 35.1 | ||
| 2006 | CO | 31.3 | ||
| 2007 | CO | 28.4 | ||
| 2008 | CO | 25.8 | ||
| 2009 | CO | 23.4 | ||
| 2010 | CO | 21.3 | ||
| 2011 | CO | 19.1 | ||
| 2012 | CO | 17.5 | ||
| 2013 | CO | 16.2 | ||
| 2014 | CO | 15.0 | ||
| 2015 | CO | 14.0 | ||
| 2016 | CO | 13.7 | ||
| 2017 | CO | 13.3 |