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Annual Toxics Summary
ARB's ADAM Air Quality Database
Bakersfield-5558 California Avenue FAQs
Silicon
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
2600 * * * 5200 1050 5 2
2002
1000 8800 9010 15000 18000 4720 36 2
2001
980 5600 7070 13000 17000 4500 39 3
2000
550 7300 7740 12000 19000 4020 40 3
1999
130 7400 8060 15000 21000 5310 39 3
1998
860 5600 6880 15000 18000 5120 42 3
1997
1500 8300 8570 13000 18000 4720 34 3
1996
650 7000 6780 15000 21000 5340 36 3
1995
880 8400 9280 18000 20000 5590 30 3
1994
1500 9800 * 15000 17000 4570 25 3
1993
* * * * * * 0 *
1992
* * * * * * 0 *
1991
* * * * * * 0 *
1990
* * * * * * 0 *
1989
* * * * * * 0 *
Graph It!
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.