Food × analyte
DCPA on lettuce
1994–2017 · 11 tested years
6,655samples tested
for this analyte
for this analyte
924samples with
a detection
a detection
13.9%of analyte-tested samples
Testing detected DCPA in 924 of 6,655 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.
11 tested years between 1994 and 2017. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1994 | 691 | 36 | 5.2% |
| 1995 | Not tested | — | — |
| 1996 | Not tested | — | — |
| 1997 | Not tested | — | — |
| 1998 | Not tested | — | — |
| 1999 | 185 | 3 | 1.6% |
| 2000 | 740 | 16 | 2.2% |
| 2001 | 554 | 59 | 10.6% |
| 2002 | Not tested | — | — |
| 2003 | Not tested | — | — |
| 2004 | 743 | 202 | 27.2% |
| 2005 | 743 | 228 | 30.7% |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | Not tested | — | — |
| 2009 | Not tested | — | — |
| 2010 | 743 | 178 | 24.0% |
| 2011 | 744 | 106 | 14.2% |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | 378 | 21 | 5.6% |
| 2016 | 756 | 58 | 7.7% |
| 2017 | 378 | 17 | 4.5% |
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: 1994, 1999, 2000, 2001, 2004, 2005, 2010, 2011, 2015, 2016, 2017.