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	Annual Toxics Summary Mexicali-Calzada Benito Juarez FAQs Toluene parts per billion

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2025		*	*	*	*	*	*	0	*
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		2.6	*	*	*	15	4.52	5	0.2
2009		0.3	*	*	*	16	5.68	9	0.2
2008		1.0	*	*	*	1.0	5.25	1	0.2
2007		2.5	*	*	*	13	5.25	3	0.2
2006		0.8	5.1	*	13	21	5.66	16	0.2
2005		0.7	3.3	*	12.4	15	4.53	17	0.2
2004		1.1	*	*	*	13	4.52	10	0.2
2003		1.1	3.6	*	12.4	17	4.62	17	0.2
2002		0.8	8.4	*	25	35	10.5	19	0.2
2001		1.0	6.2	9.05	19	36	8.32	27	0.2
2000		2.0	5.7	7.83	17.3	19	5.46	28	0.2
1999		0.9	4.1	9.05	25.6	39	9.78	28	0.2
1998		1.3	7.0	*	21.8	33	8.79	25	0.2
1997		1.0	4.9	*	29.8	39	12.4	15	0.2
1996		*	*	*	*	*	*	0	*
1995		*	*	*	*	*	*	0	*
1994		*	*	*	*	*	*	0	*
1993		*	*	*	*	*	*	0	*
1992		*	*	*	*	*	*	0	*
1991		*	*	*	*	*	*	0	*
1990		*	*	*	*	*	*	0	*
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.