Food × analyte
Permethrin trans on lettuce
1999–2017 · 10 tested years
5,177samples tested
for this analyte
for this analyte
639samples with
a detection
a detection
12.3%of analyte-tested samples
Testing detected Permethrin trans in 639 of 5,177 lettuce samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 6,655 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
10 tested years between 1999 and 2017. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1999 | 185 | 5 | 2.7% |
| 2000 | 348 | 29 | 8.3% |
| 2001 | 159 | 43 | 27.0% |
| 2002 | Not tested | — | — |
| 2003 | Not tested | — | — |
| 2004 | 743 | 92 | 12.4% |
| 2005 | 743 | 131 | 17.6% |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | Not tested | — | — |
| 2009 | Not tested | — | — |
| 2010 | 743 | 118 | 15.9% |
| 2011 | 744 | 96 | 12.9% |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | 378 | 42 | 11.1% |
| 2016 | 756 | 62 | 8.2% |
| 2017 | 378 | 21 | 5.6% |
Testing panels and detection limits change. These observations do not establish a causal trend.
About these results
Source: USDA Pesticide Data Program. Included annual releases: 1999, 2000, 2001, 2004, 2005, 2010, 2011, 2015, 2016, 2017.