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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
0.02 0.02 0.062 0.14 0.28 0.068 30 0.04 67
2012
0.02 0.02 0.055 0.12 0.20 0.049 30 0.04 59
2011
0.02 0.04 0.066 0.16 0.21 0.058 31 0.04 72
2010
0.02 0.04 0.063 0.13 0.24 0.056 30 0.04 68
2009
0.02 0.05 0.073 0.19 0.30 0.073 31 0.04 79
2008
0.02 0.05 0.068 0.16 0.23 0.062 30 0.04 74
2007
0.02 0.05 0.090 0.16 0.35 0.078 28 0.04 97
2006
0.02 0.02 0.073 0.21 0.39 0.091 32 0.04 79
2005
0.02 0.02 0.082 0.19 0.38 0.088 28 0.04 88
2004
0.02 0.08 0.077 0.16 0.20 0.057 30 0.04 84
2003
0.02 0.06 0.101 0.24 0.38 0.095 30 0.04 109
2002
0.02 0.08 0.133 0.31 0.40 0.109 29 0.04 144
2001
0.02 0.10 0.162 0.39 0.66 0.167 30 0.04 175
2000
0.02 0.09 0.182 0.38 0.69 0.178 29 0.04 197
1999
0.02 0.11 0.240 0.47 0.79 0.205 29 0.04 259
1998
0.02 0.11 0.240 0.56 0.81 0.226 26 0.04 259
1997
0.02 0.15 0.235 0.42 0.76 0.188 27 0.04 254
1996
0.02 0.17 0.252 0.47 0.90 0.216 30 0.04 272
1995
0.08 0.20 0.279 0.61 0.77 0.194 29 0.04 301
1994
0.02 0.26 * 0.73 0.89 0.245 28 0.04 *
1993
0.02 0.25 0.398 0.85 1.3 0.340 28 0.04 431
1992
0.02 0.20 0.331 0.79 0.88 0.269 28 0.04 358
1991
0.02 0.16 0.332 0.75 1.0 0.285 29 0.04 359
1990
0.07 0.30 0.387 0.88 1.2 0.306 31 0.04 418
1989
0.11 0.35 0.447 0.98 1.4 0.359 22 0.04 483
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.