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California Air Resources Board

Annual Toxics Summary
ARB's ADAM Air Quality Database
Mexicali-Calzada Benito Juarez FAQs
Chromium
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
4 * * * 6 1.3 3 3
2009
1.5 * * * 1.5 2.0 1 3
2008
* * * * * * 0 *
2007
1.5 * * * 5 2.0 3 3
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
* * * * * * 0 *
2002
* * * * * * 0 *
2001
2 10 * 13 14 3.8 19 2
2000
1 9 9.5 13 20 3.7 30 2
1999
1 9 11.4 20 37 8.9 30 2
1998
3 10 * 21 33 7.8 23 2
1997
1 * * * 33 9.3 9 2
1996
* * * * * * 0 *
1995
* * * * * * 0 *
1994
* * * * * * 0 *
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.