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Annual Statewide Toxics Summary
Strontium
FAQs
nanograms per cubic meter
Year
Months
Present
Minimum
Median
Mean
90th
Percentile
Maximum
Standard
Deviation
Number of
Observations
Detection
Limit
2024
0.7
4.5
*
10.4
51.3
5.30
154
0.04
2023
0.65
6.0
7.96
16
56.8
6.11
362
1.3
2022
0.65
6.8
10.6
20.3
262
19.5
390
1.3
2021
0.65
7.7
*
22
49.3
8.78
312
1.3
2020
0.65
6.4
*
18.6
39.2
8.29
106
1.3
2019
0.65
5.9
8.54
19.6
71.1
8.76
410
1.3
2018
0.65
7.3
10.5
23.5
57.5
9.00
428
1.3
2017
0.65
7.2
9.37
19.8
67.4
8.07
420
1.3
2016
0.65
6.9
9.98
21.1
108
10.1
424
1.3
2015
0.65
7.2
10.8
19.4
488
25.3
418
1.3
2014
0.6
7.5
11.0
24
75
10.6
398
1.2
2013
0.75
7.5
*
19
62
7.75
431
1.5
2012
0.75
5.5
7.69
17
40
6.45
454
1.5
2011
0.75
5.1
7.06
16
36
6.20
399
1.5
2010
0.75
4.8
6.25
13
29
5.10
434
1.5
2009
0.75
6.4
8.38
17
63
7.00
520
1.5
2008
*
*
*
*
*
*
0
*
2007
0.75
7.7
9.77
19
57
7.51
430
1.5
2006
*
*
*
*
*
*
0
*
2005
*
*
*
*
*
*
0
*
2004
*
*
*
*
*
*
0
*
2003
1.0
10
*
25.5
65
11.8
86
1.0
2002
1.0
11
15.3
29
67
11.3
491
1.0
2001
1
10
13.3
27
170
12.7
505
2.0
2000
1
10
12.7
25
79
10.0
472
2.0
1999
1
10
13.4
27
270
16.4
565
2.0
1998
1
9.0
12.1
24
570
25.6
561
2.0
1997
1
8.0
10.9
22
100
10.5
557
2.0
1996
1
9.0
10.6
23
66
8.94
595
2.0
1995
1
8.0
11.1
24
120
11.6
602
2.0
1994
1
9.0
11.1
23
78
9.60
585
2.0
1993
1
9.0
11.5
22
150
11.6
575
2.0
1992
1
9.0
11.6
23
160
12.4
554
2.0
1991
1
10
13.4
27
110
11.2
567
2.0
1990
1
14
*
31
79
11.5
309
2.0
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.
