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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 |
|
0.025 | 0.08 | * | 0.17 | 0.24 | 0.06 | 14 | 0.05 | * | ||||||||||||
2023 |
|
0.025 | 0.1 | 0.11 | 0.22 | 0.32 | 0.084 | 29 | 0.05 | 29 | ||||||||||||
2022 |
|
0.025 | 0.08 | 0.10 | 0.22 | 0.3 | 0.071 | 30 | 0.05 | 26 | ||||||||||||
2021 |
|
0.025 | 0.08 | * | 0.15 | 0.3 | 0.059 | 23 | 0.05 | * | ||||||||||||
2020 |
|
0.09 | * | * | * | 0.26 | 0.053 | 9 | 0.05 | * | ||||||||||||
2019 |
|
0.025 | 0.09 | 0.111 | 0.21 | 0.34 | 0.077 | 30 | 0.05 | 29 | ||||||||||||
2018 |
|
0.025 | 0.14 | 0.189 | 0.26 | 1.0 | 0.198 | 31 | 0.05 | 49 | ||||||||||||
2017 |
|
0.025 | 0.15 | 0.216 | 0.47 | 0.75 | 0.166 | 29 | 0.05 | 56 | ||||||||||||
2016 |
|
0.05 | 0.15 | 0.167 | 0.31 | 0.39 | 0.093 | 31 | 0.05 | 43 | ||||||||||||
2015 |
|
0.025 | 0.15 | 0.195 | 0.41 | 0.5 | 0.125 | 30 | 0.05 | 51 | ||||||||||||
2014 |
|
0.025 | 0.15 | 0.194 | 0.34 | 0.47 | 0.117 | 30 | 0.05 | 51 | ||||||||||||
2013 |
|
0.05 | 0.2 | 0.208 | 0.38 | 0.45 | 0.113 | 31 | 0.05 | 54 | ||||||||||||
2012 |
|
0.06 | 0.17 | 0.204 | 0.38 | 0.7 | 0.14 | 29 | 0.05 | 53 | ||||||||||||
2011 |
|
0.025 | 0.18 | 0.229 | 0.41 | 0.79 | 0.166 | 31 | 0.05 | 60 | ||||||||||||
2010 |
|
0.07 | 0.21 | 0.227 | 0.45 | 0.54 | 0.137 | 29 | 0.05 | 59 | ||||||||||||
2009 |
|
0.06 | 0.14 | 0.218 | 0.38 | 0.57 | 0.13 | 27 | 0.05 | 57 | ||||||||||||
2008 |
|
0.06 | 0.15 | 0.179 | 0.3 | 0.47 | 0.094 | 31 | 0.05 | 46 | ||||||||||||
2007 |
|
0.06 | 0.15 | 0.223 | 0.49 | 0.91 | 0.211 | 29 | 0.05 | 58 | ||||||||||||
2006 |
|
0.08 | 0.23 | 0.299 | 0.63 | 0.84 | 0.221 | 30 | 0.05 | 78 | ||||||||||||
2005 |
|
0.07 | 0.19 | 0.23 | 0.48 | 0.74 | 0.174 | 31 | 0.05 | 60 | ||||||||||||
2004 |
|
0.07 | 0.27 | 0.329 | 0.6 | 0.87 | 0.215 | 30 | 0.05 | 85 | ||||||||||||
2003 |
|
0.1 | 0.28 | 0.386 | 0.75 | 0.86 | 0.233 | 31 | 0.05 | 100 | ||||||||||||
2002 |
|
0.16 | 0.48 | * | 0.87 | 1.2 | 0.29 | 16 | 0.05 | * | ||||||||||||
2001 |
|
0.12 | 0.3 | 0.376 | 0.63 | 1.3 | 0.285 | 30 | 0.05 | 98 | ||||||||||||
2000 |
|
0.1 | 0.4 | 0.48 | 0.9 | 1.8 | 0.38 | 29 | 0.2 | 125 | ||||||||||||
1999 |
|
0.2 | 0.5 | 0.65 | 1.4 | 2.2 | 0.52 | 26 | 0.2 | 170 | ||||||||||||
1998 |
|
0.1 | 0.5 | 0.63 | 1.2 | 2.3 | 0.54 | 31 | 0.2 | 165 | ||||||||||||
1997 |
|
0.1 | 0.5 | 0.51 | 1.0 | 2.3 | 0.50 | 30 | 0.2 | 134 | ||||||||||||
1996 |
|
0.25 | 0.25 | 0.53 | 1.5 | 1.9 | 0.55 | 31 | 0.5 | 137 | ||||||||||||
1995 |
|
0.25 | 0.9 | 0.95 | 2.0 | 3.1 | 0.78 | 29 | 0.5 | 248 | ||||||||||||
1994 |
|
0.25 | 1.0 | 1.07 | 2.4 | 2.8 | 0.87 | 29 | 0.5 | 279 | ||||||||||||
1993 |
|
0.25 | 1.0 | * | 2.6 | 3.7 | 0.98 | 27 | 0.5 | * | ||||||||||||
1992 |
|
0.25 | 1.2 | 1.25 | 2.2 | 2.8 | 0.76 | 31 | 0.5 | 325 | ||||||||||||
1991 |
|
0.25 | 1.4 | 1.49 | 2.8 | 4.5 | 1.05 | 26 | 0.5 | 389 | ||||||||||||
1990 |
|
0.25 | 2.2 | * | 2.8 | 3.8 | 0.88 | 27 | 0.5 | * | ||||||||||||
1989 |
|
0.25 | 2.0 | 2.44 | 5.0 | 6.9 | 1.79 | 23 | 0.5 | 635 | ||||||||||||
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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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