National Trends in PM10 Concentrations in 2000 - 2010
Year Mean Number of Trend Sites 10th Percentile 90th Percentile
2000 87.9084858569051 601 37 119
2001 91.0515806988352 601 38 112
2002 88.5241264559068 601 38 118
2003 96.9875207986689 601 34 129
2004 73.9450915141431 601 34 102
2005 72.0008319467554 601 35 102
2006 79.2995008319467 601 35 111
2007 70.7099278979478 601 36 109
2008 68.8108707709373 601 34 105
2009 60.5840266222961 601 29 91
2010 62.6106489184692 601 31 90