California Home
ARB:
Home
Search
Site Map
Contact Us
Annual Statewide Toxics Summary
Phosphorus
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
*
*
*
*
*
*
0
*
2012
*
*
*
*
*
*
0
*
2011
*
*
*
*
*
*
0
*
2010
*
*
*
*
*
*
0
*
2009
*
*
*
*
*
*
0
*
2008
*
*
*
*
*
*
0
*
2007
*
*
*
*
*
*
0
*
2006
*
*
*
*
*
*
0
*
2005
*
*
*
*
*
*
0
*
2004
*
*
*
*
*
*
0
*
2003
1
23
*
44
290
34.5
86
2
2002
1
50
70.5
140
580
79.6
491
2
2001
7.5
48
69.7
140
570
79.1
505
15
2000
7.5
51
73.8
140
1300
91.8
472
15
1999
7.5
53
73.8
150
490
69.4
565
15
1998
7.5
48
65.3
130
470
57.9
561
15
1997
7.5
43
52.4
110
270
43.3
557
15
1996
7.5
38
54.7
120
520
61.0
595
15
1995
7.5
18
38.6
99
390
51.9
602
15
1994
7.5
7.5
*
66
300
46.3
300
15
1993
*
*
*
*
*
*
0
*
1992
1
13
*
70
610
53.2
362
2
1991
1
11
29.6
82
280
41.8
567
2
1990
1
24
*
120
290
54.7
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.
