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1,3-Butadiene
parts per billion
Read About Estimated Risk
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
Estimated
Risk
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
* * * * * * 0 * *
2002
0.09 * * * 0.78 0.234 9 0.04 *
2001
0.02 0.12 * 0.33 0.74 0.158 28 0.04 *
2000
0.02 0.11 0.193 0.52 1.0 0.226 30 0.04 208
1999
0.05 0.14 0.227 0.46 0.73 0.179 30 0.04 245
1998
0.08 0.24 0.293 0.66 0.90 0.227 31 0.04 316
1997
0.02 0.18 0.287 0.60 0.88 0.231 30 0.04 310
1996
0.02 0.19 0.311 0.77 1.2 0.285 31 0.04 337
1995
0.08 0.30 0.348 0.61 1.3 0.246 30 0.04 376
1994
0.10 0.25 0.385 0.81 1.6 0.340 31 0.04 416
1993
0.08 0.31 0.485 1.3 1.6 0.447 29 0.04 525
1992
0.02 0.26 0.436 1.1 1.6 0.413 31 0.04 471
1991
0.02 0.25 0.385 0.95 1.2 0.342 28 0.04 416
1990
0.10 0.33 0.549 1.33 1.9 0.515 28 0.04 594
1989
0.11 0.45 0.570 0.93 2.3 0.577 23 0.04 616
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.