Clean_Air 06Z wind_direction 1986 - 43.1 58.7 40.5 84.3 84.7 66.1 46.6 - - 33.5 49.0 1987 38.5 52.1 50.1 65.3 73.0 68.2 - - - - 73.6 60.6 1988 20.0 71.1 50.9 73.6 80.8 73.0 69.5 56.2 46.2 66.6 72.1 69.7 1989 50.8 59.0 74.6 96.2 67.2 71.1 62.2 41.1 59.4 71.3 47.1 43.7 1990 44.3 61.6 80.1 83.1 87.1 48.0 70.8 58.7 - - - 25.3 1991 45.7 50.7 67.0 82.3 79.8 83.5 64.8 75.1 43.1 66.8 39.5 57.0 1992 58.7 69.5 101.2 46.2 70.6 53.4 82.3 70.8 41.8 36.0 59.0 57.0 1993 39.3 46.6 59.6 67.4 65.2 74.4 39.7 73.1 65.0 - - - 1994 - 62.3 40.1 73.1 36.5 51.9 83.0 42.9 61.9 48.1 27.0 63.6 1995 56.8 42.5 61.9 54.1 68.3 62.2 57.0 69.6 85.4 36.6 31.4 35.3 1996 53.2 44.9 67.9 47.5 66.2 43.9 56.4 54.9 63.2 45.8 49.1 36.0 1997 48.9 71.4 71.4 40.6 41.2 59.2 63.6 36.6 54.7 70.3 33.9 65.5 1998 3.9 52.4 51.2 58.4 67.0 65.0 54.4 74.1 57.1 62.6 25.2 30.1 1999 27.5 48.3 56.0 56.5 34.3 70.7 79.1 55.7 78.2 43.7 40.6 32.4 2000 27.4 27.5 64.5 54.2 52.1 45.1 34.3 29.5 44.4 4.2 7.2 23.3 2001 24.0 35.7 31.2 47.5 35.7 42.5 52.3 47.3 29.2 30.8 21.5 11.1 2002 11.0 30.6 33.8 20.7 48.9 61.1 16.1 27.7 61.3 37.3 18.0 38.8 2003 - - - - - - - - - - - - 2004 - - - - - - - - - - - - 2005 - 212.3 - 181.4 153.2 - 140.5 126.8 121.8 156.5 158.3 13.7 2006 18.6 - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - - - - - - - - - - 2009 - - - - - - - - - - - -