California Home
ARB:
Home
Search
Site Map
Contact Us
Annual Statewide Toxics Summary
Sulfur
FAQs
nanograms per cubic meter
Year
Months
Present
Minimum
Median
Mean
90th
Percentile
Maximum
Standard
Deviation
Number of
Observations
Detection
Limit
2024
*
*
*
*
*
*
0
*
2023
*
*
*
*
*
*
0
*
2022
*
*
*
*
*
*
0
*
2021
*
*
*
*
*
*
0
*
2020
*
*
*
*
*
*
0
*
2019
*
*
*
*
*
*
0
*
2018
*
*
*
*
*
*
0
*
2017
*
*
*
*
*
*
0
*
2016
*
*
*
*
*
*
0
*
2015
*
*
*
*
*
*
0
*
2014
*
*
*
*
*
*
0
*
2013
25.5
600
*
1400
2300
422
431
51
2012
30
480
607
1200
2200
406
430
60
2011
30
480
638
1300
3900
527
415
60
2010
30
470
566
1100
3500
419
428
60
2009
30
550
775
1700
6200
660
520
60
2008
42
650
768
1500
4500
509
503
20
2007
30
600
*
2000
3600
732
369
60
2006
*
*
*
*
*
*
0
*
2005
*
*
*
*
*
*
0
*
2004
*
*
*
*
*
*
0
*
2003
57
550
*
1200
1600
386
86
2
2002
47
700
836
1600
3100
525
491
2
2001
55
650
827
1700
3400
599
505
2
2000
95
590
775
1600
3100
559
472
2
1999
39
670
782
1500
5600
557
565
2
1998
6
580
742
1600
3000
550
561
2
1997
55
580
735
1500
4200
546
557
2
1996
64
670
759
1500
3300
496
595
2
1995
50
700
792
1500
3300
525
602
2
1994
81
660
845
1700
4800
699
585
2
1993
120
650
928
2000
3500
706
575
2
1992
39
780
981
2000
5700
733
554
2
1991
11
840
1070
2000
20000
1100
567
2
1990
99
760
*
1900
3200
636
309
2
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.
