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Annual Toxics Summary
ARB's ADAM Air Quality Database
Chico-Manzanita Avenue FAQs
Calcium
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 * * * 490 153 5 4
2002
81 730 707 1200 1600 377 31 4
2001
60 380 505 1100 1500 391 32 3
2000
27 470 485 900 1000 315 31 3
1999
55 530 679 1400 2100 529 30 3
1998
47 270 440 980 1900 436 32 3
1997
29 330 424 750 1300 283 30 3
1996
35 410 476 910 1200 356 29 3
1995
26 460 465 850 1000 309 29 3
1994
50 570 548 1100 1400 366 30 3
1993
59 440 484 940 2100 446 29 3
1992
51 480 * 1500 1500 514 16 3
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.