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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 |
|
0.0215 | 0.0215 | * | 0.0215 | 0.06 | 0.009 | 18 | 0.043 | * | ||||||||||||
2022 |
|
0.0215 | 0.0215 | 0.035 | 0.08 | 0.08 | 0.022 | 29 | 0.043 | 14 | ||||||||||||
2021 |
|
0.0215 | 0.0215 | * | 0.08 | 0.12 | 0.027 | 23 | 0.043 | * | ||||||||||||
2020 |
|
0.0215 | * | * | * | 0.0215 | 0.00 | 7 | 0.043 | * | ||||||||||||
2019 |
|
0.0215 | 0.0215 | 0.025 | 0.0215 | 0.07 | 0.009 | 28 | 0.043 | 11 | ||||||||||||
2018 |
|
0.03 | 0.01 | * | 0.03 | 0.07 | 0.014 | 21 | 0.02 | * | ||||||||||||
2017 |
|
0.03 | 0.03 | 0.033 | 0.03 | 0.1 | 0.014 | 29 | 0.06 | 14 | ||||||||||||
2016 |
|
0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2015 |
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0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2014 |
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0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2013 |
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0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2012 |
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0.03 | * | 0.03 | * | 0.03 | * | 27 | 0.06 | 12 | ||||||||||||
2011 |
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0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2010 |
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0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2009 |
|
0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2008 |
|
0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2007 |
|
0.03 | * | 0.03 | * | 0.03 | * | 28 | 0.06 | 12 | ||||||||||||
2006 |
|
0.03 | * | 0.045 | * | 0.06 | * | 28 | 0.06 | 19 | ||||||||||||
2005 |
|
0.03 | * | 0.058 | * | 0.08 | * | 28 | 0.06 | 24 | ||||||||||||
2004 |
|
0.03 | * | 0.06 | * | 0.08 | * | 28 | 0.06 | 25 | ||||||||||||
2003 |
|
0.03 | * | 0.053 | * | 0.09 | * | 28 | 0.06 | 22 | ||||||||||||
2002 |
|
0.03 | * | 0.048 | * | 0.07 | * | 28 | 0.06 | 20 | ||||||||||||
2001 |
|
0.1 | 0.1 | * | 0.1 | 0.1 | 0.00 | 28 | 0.2 | * | ||||||||||||
2000 |
|
0.1 | 0.1 | 0.10 | 0.1 | 0.1 | 0.00 | 30 | 0.2 | 42 | ||||||||||||
1999 |
|
0.1 | 0.1 | 0.10 | 0.1 | 0.1 | 0.00 | 30 | 0.2 | 42 | ||||||||||||
1998 |
|
0.1 | 0.1 | 0.10 | 0.1 | 0.1 | 0.00 | 32 | 0.2 | 42 | ||||||||||||
1997 |
|
0.1 | 0.1 | 0.10 | 0.1 | 0.1 | 0.00 | 29 | 0.2 | 42 | ||||||||||||
1996 |
|
0.1 | 0.1 | 0.11 | 0.1 | 0.2 | 0.02 | 31 | 0.2 | 44 | ||||||||||||
1995 |
|
0.1 | 0.2 | 0.19 | 0.3 | 0.4 | 0.09 | 30 | 0.2 | 80 | ||||||||||||
1994 |
|
0.1 | 0.1 | 0.13 | 0.2 | 0.3 | 0.05 | 30 | 0.2 | 53 | ||||||||||||
1993 |
|
0.1 | 0.1 | * | 0.2 | 0.3 | 0.06 | 24 | 0.2 | * | ||||||||||||
1992 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1991 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
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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