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Annual Statewide Toxics Summary
Potassium
FAQs
nanograms per cubic meter
Year
Months
Present
Minimum
Median
Mean
90th
Percentile
Maximum
Standard
Deviation
Number of
Observations
Detection
Limit
2023
*
*
*
*
*
*
0
*
2022
*
*
*
*
*
*
0
*
2021
*
*
*
*
*
*
0
*
2020
*
*
*
*
*
*
0
*
2019
*
*
*
*
*
*
0
*
2018
*
*
*
*
*
*
0
*
2017
*
*
*
*
*
*
0
*
2016
*
*
*
*
*
*
0
*
2015
*
*
*
*
*
*
0
*
2014
*
*
*
*
*
*
0
*
2013
*
*
*
*
*
*
0
*
2012
*
*
*
*
*
*
0
*
2011
*
*
*
*
*
*
0
*
2010
*
*
*
*
*
*
0
*
2009
*
*
*
*
*
*
0
*
2008
*
*
*
*
*
*
0
*
2007
*
*
*
*
*
*
0
*
2006
*
*
*
*
*
*
0
*
2005
*
*
*
*
*
*
0
*
2004
*
*
*
*
*
*
0
*
2003
65
340
*
830
2300
375
86
5
2002
13
520
724
1600
3300
612
491
5
2001
22
450
600
1300
9800
642
505
3
2000
35
470
615
1400
4800
563
472
3
1999
30
440
655
1300
16000
924
565
3
1998
11
420
572
1200
7900
632
561
3
1997
39
430
560
1100
3700
502
557
3
1996
33
410
533
1100
2900
457
595
3
1995
57
420
575
1200
3500
540
602
3
1994
70
450
549
1000
3700
431
585
3
1993
58
450
576
1100
3200
508
575
3
1992
13
460
598
1100
6300
620
554
3
1991
1.5
460
653
1300
5800
596
567
3
1990
55
700
*
1800
5700
689
309
3
1989
*
*
*
*
*
*
0
*
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.
