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Annual Toxics Summary
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Iron
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2017
* * * * * * 0 *
2016
* * * * * * 0 *
2015
* * * * * * 0 *
2014
* * * * * * 0 *
2013
* * * * * * 0 *
2012
* * * * * * 0 *
2011
* * * * * * 0 *
2010
* * * * * * 0 *
2009
* * * * * * 0 *
2008
3800 * * * 3800 1410 1 1
2007
220 * * * 3200 1410 4 30
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
2100 * * * 3800 763 4 1
2002
2000 3400 * 6800 8600 1940 18 1
2001
290 3300 * 6100 6200 1780 17 2
2000
410 3500 4020 6100 11000 2190 30 2
1999
480 4000 4880 8800 15000 3390 28 2
1998
420 3900 * 8400 11000 3240 12 2
1997
240 3800 * 12000 13000 4070 12 2
1996
* * * * * * 0 *
1995
* * * * * * 0 *
1994
* * * * * * 0 *
1993
* * * * * * 0 *
1992
* * * * * * 0 *
1991
* * * * * * 0 *
1990
* * * * * * 0 *
1989
* * * * * * 0 *
Graph It!
Notes Values below the Limit of Detection (LoD) assumed to be ½ LoD.
Means and risks shown only for years with data in all 12 months.
"*" means there was insufficient or no data available to determine the value.