year | pollutant_name | index |
---|---|---|
1990 | PM2.5 | 100.0 |
1991 | PM2.5 | 100.0 |
1992 | PM2.5 | 100.0 |
1993 | PM2.5 | 100.0 |
1994 | PM2.5 | 100.0 |
1995 | PM2.5 | 100.0 |
1996 | PM2.5 | 100.0 |
1997 | PM2.5 | 112.5 |
1998 | PM2.5 | 112.5 |
1999 | PM2.5 | 112.5 |
2000 | PM2.5 | 112.5 |
2001 | PM2.5 | 100.0 |
2002 | PM2.5 | 100.0 |
2003 | PM2.5 | 100.0 |
2004 | PM2.5 | 100.0 |
2005 | PM2.5 | 100.0 |
2006 | PM2.5 | 100.0 |
2007 | PM2.5 | 100.0 |
2008 | PM2.5 | 100.0 |
2009 | PM2.5 | 100.0 |
2010 | PM2.5 | 87.5 |
2011 | PM2.5 | 87.5 |
2012 | PM2.5 | 87.5 |
2013 | PM2.5 | 75.0 |
2014 | PM2.5 | 75.0 |
2015 | PM2.5 | 62.5 |