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Read About Estimated Risk |
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Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
Estimated Risk |
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2024 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2023 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2022 |
|
0.02 | 0.05 | * | 0.09 | 0.12 | 0.036 | 11 | 0.04 | * | ||||||||||||
2021 |
|
0.02 | 0.04 | * | 0.07 | 0.16 | 0.033 | 22 | 0.04 | * | ||||||||||||
2020 |
|
0.02 | * | * | * | 0.09 | 0.033 | 5 | 0.04 | * | ||||||||||||
2019 |
|
0.02 | 0.02 | * | 0.10 | 0.11 | 0.033 | 20 | 0.04 | * | ||||||||||||
2018 |
|
0.02 | 0.02 | * | 0.06 | 0.20 | 0.043 | 19 | 0.04 | * | ||||||||||||
2017 |
|
0.02 | 0.02 | 0.058 | 0.10 | 0.19 | 0.043 | 29 | 0.04 | 63 | ||||||||||||
2016 |
|
0.02 | 0.06 | 0.066 | 0.12 | 0.20 | 0.047 | 31 | 0.04 | 71 | ||||||||||||
2015 |
|
0.02 | 0.05 | 0.072 | 0.14 | 0.24 | 0.057 | 26 | 0.04 | 78 | ||||||||||||
2014 |
|
0.02 | 0.05 | * | 0.13 | 0.20 | 0.050 | 24 | 0.04 | * | ||||||||||||
2013 |
|
0.02 | 0.07 | 0.082 | 0.18 | 0.26 | 0.070 | 31 | 0.04 | 88 | ||||||||||||
2012 |
|
0.02 | 0.06 | 0.075 | 0.14 | 0.29 | 0.062 | 29 | 0.04 | 81 | ||||||||||||
2011 |
|
0.02 | 0.10 | 0.105 | 0.23 | 0.27 | 0.074 | 31 | 0.04 | 114 | ||||||||||||
2010 |
|
0.02 | 0.08 | 0.102 | 0.20 | 0.31 | 0.076 | 29 | 0.04 | 110 | ||||||||||||
2009 |
|
0.02 | 0.08 | 0.120 | 0.23 | 0.43 | 0.095 | 29 | 0.04 | 129 | ||||||||||||
2008 |
|
0.04 | 0.08 | 0.105 | 0.18 | 0.28 | 0.062 | 29 | 0.04 | 113 | ||||||||||||
2007 |
|
0.02 | 0.10 | 0.118 | 0.24 | 0.30 | 0.083 | 23 | 0.04 | 127 | ||||||||||||
2006 |
|
0.02 | 0.10 | * | 0.23 | 0.50 | 0.110 | 25 | 0.04 | * | ||||||||||||
2005 |
|
0.02 | 0.13 | 0.164 | 0.37 | 0.45 | 0.127 | 30 | 0.04 | 178 | ||||||||||||
2004 |
|
0.06 | 0.18 | 0.195 | 0.32 | 0.45 | 0.100 | 24 | 0.04 | 211 | ||||||||||||
2003 |
|
0.02 | 0.17 | 0.186 | 0.29 | 0.75 | 0.144 | 29 | 0.04 | 201 | ||||||||||||
2002 |
|
0.06 | 0.25 | * | 0.52 | 0.79 | 0.199 | 23 | 0.04 | * | ||||||||||||
2001 |
|
0.02 | 0.26 | 0.313 | 0.63 | 0.80 | 0.216 | 28 | 0.04 | 339 | ||||||||||||
2000 |
|
0.11 | 0.26 | 0.296 | 0.54 | 0.86 | 0.189 | 29 | 0.04 | 319 | ||||||||||||
1999 |
|
0.06 | 0.33 | 0.432 | 0.74 | 1.1 | 0.283 | 23 | 0.04 | 467 | ||||||||||||
1998 |
|
0.07 | 0.37 | 0.421 | 0.75 | 0.94 | 0.236 | 30 | 0.04 | 455 | ||||||||||||
1997 |
|
0.13 | 0.44 | * | 0.80 | 1.2 | 0.283 | 23 | 0.04 | * | ||||||||||||
1996 |
|
0.15 | 0.46 | 0.542 | 0.76 | 1.7 | 0.345 | 28 | 0.04 | 586 | ||||||||||||
1995 |
|
0.07 | 0.49 | 0.599 | 1.2 | 1.3 | 0.341 | 31 | 0.04 | 647 | ||||||||||||
1994 |
|
0.16 | 0.58 | 0.588 | 1.0 | 1.4 | 0.312 | 30 | 0.04 | 635 | ||||||||||||
1993 |
|
0.15 | 0.47 | 0.733 | 1.55 | 2.1 | 0.553 | 26 | 0.04 | 792 | ||||||||||||
1992 |
|
0.18 | 0.62 | 0.643 | 1.1 | 1.3 | 0.317 | 31 | 0.04 | 695 | ||||||||||||
1991 |
|
0.08 | 0.40 | 0.547 | 1.0 | 1.3 | 0.352 | 29 | 0.04 | 592 | ||||||||||||
1990 |
|
0.25 | 0.52 | 0.600 | 1.12 | 1.3 | 0.324 | 29 | 0.04 | 649 | ||||||||||||
1989 |
|
0.14 | 0.47 | * | 1.21 | 1.9 | 0.442 | 20 | 0.04 | * | ||||||||||||
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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. |
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