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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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2023 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2022 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2021 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2020 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2019 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2018 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2017 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2016 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2015 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2014 |
|
0.03 | * | * | * | 0.1 | * | 14 | 0.06 | * | ||||||||||||
2013 |
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0.06 | * | 0.09 | * | 0.14 | * | 28 | 0.06 | 37 | ||||||||||||
2012 |
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0.03 | * | 0.065 | * | 0.09 | * | 28 | 0.06 | 27 | ||||||||||||
2011 |
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0.03 | * | 0.075 | * | 0.11 | * | 26 | 0.06 | 31 | ||||||||||||
2010 |
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0.03 | * | * | * | 0.1 | * | 21 | 0.06 | * | ||||||||||||
2009 |
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0.03 | * | 0.065 | * | 0.1 | * | 28 | 0.06 | 27 | ||||||||||||
2008 |
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0.06 | * | 0.103 | * | 0.14 | * | 28 | 0.06 | 43 | ||||||||||||
2007 |
|
0.06 | * | 0.08 | * | 0.11 | * | 28 | 0.06 | 33 | ||||||||||||
2006 |
|
0.07 | * | 0.115 | * | 0.15 | * | 28 | 0.06 | 48 | ||||||||||||
2005 |
|
0.08 | * | 0.113 | * | 0.14 | * | 28 | 0.06 | 47 | ||||||||||||
2004 |
|
0.07 | * | 0.113 | * | 0.19 | * | 28 | 0.06 | 47 | ||||||||||||
2003 |
|
0.09 | * | * | * | 0.22 | * | 21 | 0.06 | * | ||||||||||||
2002 |
|
0.08 | * | 0.123 | * | 0.15 | * | 28 | 0.06 | 51 | ||||||||||||
2001 |
|
0.1 | 0.1 | * | 0.2 | 0.3 | 0.07 | 27 | 0.2 | * | ||||||||||||
2000 |
|
0.1 | 0.1 | 0.19 | 0.3 | 1.1 | 0.24 | 31 | 0.2 | 77 | ||||||||||||
1999 |
|
0.1 | 0.1 | 0.20 | 0.4 | 0.5 | 0.14 | 28 | 0.2 | 81 | ||||||||||||
1998 |
|
0.1 | 0.1 | 0.23 | 0.6 | 0.9 | 0.22 | 30 | 0.2 | 94 | ||||||||||||
1997 |
|
0.1 | 0.2 | * | 0.5 | 0.9 | 0.18 | 28 | 0.2 | * | ||||||||||||
1996 |
|
0.1 | 0.2 | * | 0.3 | 0.4 | 0.10 | 25 | 0.2 | * | ||||||||||||
1995 |
|
0.1 | 0.4 | 1.24 | 0.6 | 22 | 3.07 | 50 | 0.2 | 515 | ||||||||||||
1994 |
|
0.1 | 0.2 | 0.43 | 0.6 | 2.8 | 0.53 | 30 | 0.2 | 177 | ||||||||||||
1993 |
|
0.1 | 0.3 | 0.37 | 0.7 | 1.2 | 0.27 | 31 | 0.2 | 153 | ||||||||||||
1992 |
|
0.1 | 0.4 | 0.65 | 0.8 | 3.0 | 0.57 | 29 | 0.2 | 268 | ||||||||||||
1991 |
|
0.1 | 0.7 | * | 1.3 | 9.9 | 2.05 | 21 | 0.2 | * | ||||||||||||
1990 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1989 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
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2002 and later data based on quarterly composites; percentiles and standard deviation cannot be determined. | |||
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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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