year | PM10 | SO2 | O3 | NO2 |
---|---|---|---|---|
2001 | 26.8 | 1.0 | 31.4 | 13.9 |
2002 | 27.6 | 1.0 | 21.5 | 16.5 |
2003 | 43.8 | 0.6 | 64.5 | 23.1 |
2004 | 25.3 | 0.8 | 20.3 | 17.2 |
2005 | 36.0 | 0.5 | 26.9 | 16.2 |
2006 | 41.2 | 2.2 | 49.3 | 9.4 |
2007 | 28.8 | 0.4 | 22.0 | 13.9 |
2008 | 19.9 | 0.3 | 15.7 | 6.8 |
2009 | 22.3 | 0.1 | 17.7 | 12.9 |
2010 | 23.5 | 0.0 | 18.4 | 7.4 |
2011 | 32.7 | 0.0 | 13.6 | 4.9 |