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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 |
|
0.02 | 0.02 | * | 0.02 | 0.05 | 0.009 | 14 | 0.04 | * | ||||||||||||
2023 |
|
0.02 | 0.02 | 0.025 | 0.05 | 0.07 | 0.013 | 29 | 0.04 | 27 | ||||||||||||
2022 |
|
0.02 | 0.02 | 0.022 | 0.02 | 0.05 | 0.007 | 30 | 0.04 | 24 | ||||||||||||
2021 |
|
0.02 | 0.02 | * | 0.02 | 0.07 | 0.010 | 23 | 0.04 | * | ||||||||||||
2020 |
|
0.02 | * | * | * | 0.02 | 0.000 | 9 | 0.04 | * | ||||||||||||
2019 |
|
0.02 | 0.02 | 0.024 | 0.04 | 0.08 | 0.012 | 30 | 0.04 | 26 | ||||||||||||
2018 |
|
0.02 | 0.02 | 0.033 | 0.05 | 0.19 | 0.034 | 30 | 0.04 | 36 | ||||||||||||
2017 |
|
0.02 | 0.02 | 0.036 | 0.07 | 0.16 | 0.033 | 30 | 0.04 | 39 | ||||||||||||
2016 |
|
0.02 | 0.02 | 0.032 | 0.07 | 0.14 | 0.027 | 31 | 0.04 | 35 | ||||||||||||
2015 |
|
0.02 | 0.02 | 0.038 | 0.09 | 0.10 | 0.028 | 30 | 0.04 | 41 | ||||||||||||
2014 |
|
0.02 | 0.02 | 0.037 | 0.08 | 0.11 | 0.027 | 30 | 0.04 | 40 | ||||||||||||
2013 |
|
0.02 | 0.02 | 0.036 | 0.07 | 0.13 | 0.031 | 31 | 0.04 | 39 | ||||||||||||
2012 |
|
0.02 | 0.02 | 0.034 | 0.09 | 0.14 | 0.034 | 29 | 0.04 | 36 | ||||||||||||
2011 |
|
0.02 | 0.02 | 0.044 | 0.09 | 0.18 | 0.039 | 31 | 0.04 | 48 | ||||||||||||
2010 |
|
0.02 | 0.02 | 0.048 | 0.12 | 0.14 | 0.039 | 29 | 0.04 | 52 | ||||||||||||
2009 |
|
0.02 | 0.02 | 0.048 | 0.10 | 0.15 | 0.036 | 28 | 0.04 | 52 | ||||||||||||
2008 |
|
0.02 | 0.02 | 0.036 | 0.07 | 0.10 | 0.025 | 31 | 0.04 | 39 | ||||||||||||
2007 |
|
0.02 | 0.02 | 0.048 | 0.11 | 0.20 | 0.048 | 29 | 0.04 | 51 | ||||||||||||
2006 |
|
0.02 | 0.05 | 0.063 | 0.14 | 0.26 | 0.058 | 30 | 0.04 | 68 | ||||||||||||
2005 |
|
0.02 | 0.02 | 0.053 | 0.14 | 0.19 | 0.050 | 31 | 0.04 | 58 | ||||||||||||
2004 |
|
0.02 | 0.05 | 0.083 | 0.17 | 0.31 | 0.074 | 30 | 0.04 | 90 | ||||||||||||
2003 |
|
0.02 | 0.06 | 0.084 | 0.21 | 0.25 | 0.071 | 31 | 0.04 | 91 | ||||||||||||
2002 |
|
0.06 | 0.13 | * | 0.33 | 0.41 | 0.111 | 16 | 0.04 | * | ||||||||||||
2001 |
|
0.02 | 0.09 | 0.113 | 0.22 | 0.38 | 0.091 | 30 | 0.04 | 122 | ||||||||||||
2000 |
|
0.02 | 0.07 | 0.128 | 0.23 | 0.59 | 0.126 | 29 | 0.04 | 139 | ||||||||||||
1999 |
|
0.04 | 0.15 | 0.173 | 0.32 | 0.49 | 0.120 | 26 | 0.04 | 187 | ||||||||||||
1998 |
|
0.02 | 0.18 | 0.215 | 0.40 | 0.74 | 0.161 | 31 | 0.04 | 232 | ||||||||||||
1997 |
|
0.02 | 0.13 | 0.165 | 0.35 | 0.67 | 0.140 | 30 | 0.04 | 178 | ||||||||||||
1996 |
|
0.02 | 0.13 | 0.181 | 0.40 | 0.64 | 0.146 | 31 | 0.04 | 195 | ||||||||||||
1995 |
|
0.10 | 0.16 | 0.226 | 0.44 | 0.85 | 0.167 | 29 | 0.04 | 245 | ||||||||||||
1994 |
|
0.07 | 0.20 | 0.259 | 0.53 | 0.66 | 0.166 | 30 | 0.04 | 280 | ||||||||||||
1993 |
|
0.08 | 0.20 | * | 0.65 | 0.89 | 0.222 | 27 | 0.04 | * | ||||||||||||
1992 |
|
0.02 | 0.20 | 0.234 | 0.47 | 0.62 | 0.165 | 30 | 0.04 | 253 | ||||||||||||
1991 |
|
0.07 | 0.17 | 0.252 | 0.51 | 0.89 | 0.198 | 26 | 0.04 | 272 | ||||||||||||
1990 |
|
0.02 | 0.23 | * | 0.62 | 0.79 | 0.201 | 27 | 0.04 | * | ||||||||||||
1989 |
|
0.08 | 0.23 | 0.331 | 0.65 | 1.1 | 0.252 | 23 | 0.04 | 358 | ||||||||||||
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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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