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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 |
|
0.5 | * | * | * | 0.5 | 1.35 | 1 | 0.1 | * | ||||||||||||
2023 |
|
0.2 | 1.2 | 1.76 | 3.6 | 4.8 | 1.35 | 31 | 0.1 | 37 | ||||||||||||
2022 |
|
0.2 | 2.3 | 2.78 | 5.7 | 7.9 | 1.97 | 30 | 0.1 | 58 | ||||||||||||
2021 |
|
0.5 | 2.1 | * | 4.3 | 6.9 | 1.70 | 17 | 0.1 | * | ||||||||||||
2020 |
|
0.6 | * | * | * | 3.4 | 0.98 | 7 | 0.1 | * | ||||||||||||
2019 |
|
0.4 | 2.0 | 2.52 | 4.9 | 6.4 | 1.86 | 28 | 0.1 | 53 | ||||||||||||
2018 |
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0.4 | 2.5 | 3.95 | 8.8 | 17 | 3.66 | 31 | 0.1 | 83 | ||||||||||||
2017 |
|
0.2 | 1.8 | 2.76 | 6.3 | 9.7 | 2.36 | 30 | 0.1 | 58 | ||||||||||||
2016 |
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0.6 | 2.2 | * | 6.5 | 7.9 | 2.04 | 32 | 0.1 | * | ||||||||||||
2015 |
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1.2 | 2.7 | 3.12 | 5.2 | 6.8 | 1.54 | 30 | 0.1 | 66 | ||||||||||||
2014 |
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0.7 | 2.6 | 2.91 | 5.1 | 5.9 | 1.60 | 30 | 0.1 | 61 | ||||||||||||
2013 |
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0.05 | 2.9 | 3.01 | 5.5 | 6.9 | 1.69 | 31 | 0.1 | 63 | ||||||||||||
2012 |
|
0.4 | 3.7 | * | 6.0 | 7.5 | 2.17 | 19 | 0.1 | * | ||||||||||||
2011 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2010 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2009 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2008 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2007 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2006 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2005 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2004 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2003 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2002 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2001 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2000 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1999 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1998 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1997 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1996 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1995 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1994 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1993 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1992 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1991 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1990 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1989 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
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1989-1995 data and 1996-2024 data represent different methods and should not be compared. | |||
See Report on a Parallel Carbonyl Monitoring Study Using C18 and Silica Gel Sampling Media for details. | |||
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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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