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Annual Statewide Toxics Summary
Calcium
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
96
730
*
2700
8700
1410
86
4
2002
22
1100
1760
3700
16000
2030
491
4
2001
31
920
1410
2900
13000
1690
505
3
2000
27
940
1370
2700
11000
1500
472
3
1999
41
860
1320
3000
11000
1460
565
3
1998
16
690
1100
2500
12000
1220
561
3
1997
23
790
1080
2200
11000
1160
557
3
1996
31
740
1140
2400
10000
1310
595
3
1995
26
760
1240
2400
20000
1860
602
3
1994
50
800
1190
2100
14000
1490
585
3
1993
56
770
1090
2100
14000
1220
575
3
1992
26
760
1090
2000
14000
1330
554
3
1991
36
810
1220
2300
13000
1410
567
3
1990
100
1200
*
2800
9400
1210
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.
