Food × analyte
DDE p,p' on collard greens
2006–2020 · 5 tested years
884samples tested
for this analyte
for this analyte
43samples with
a detection
a detection
4.9%of analyte-tested samples
Testing detected DDE p,p' in 43 of 884 collard greens samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 1,380 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
5 tested years between 2006 and 2020. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2006 | 17 | 0 | 0.0% |
| 2007 | 117 | 15 | 12.8% |
| 2008 | 80 | 23 | 28.8% |
| 2009 | Not tested | — | — |
| 2010 | Not tested | — | — |
| 2011 | Not tested | — | — |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | Not tested | — | — |
| 2016 | Not tested | — | — |
| 2017 | Not tested | — | — |
| 2018 | Not tested | — | — |
| 2019 | 156 | 0 | 0.0% |
| 2020 | 514 | 5 | 1.0% |
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: 2006, 2007, 2008, 2019, 2020.