Food × analyte
DDT o,p' on summer squash
2013–2022 · 5 tested years
1,325samples tested
for this analyte
for this analyte
42samples with
a detection
a detection
3.2%of analyte-tested samples
Testing detected DDT o,p' in 42 of 1,325 summer squash samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 4,312 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
5 tested years between 2013 and 2022. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2013 | 362 | 9 | 2.5% |
| 2014 | 240 | 5 | 2.1% |
| 2015 | Not tested | — | — |
| 2016 | Not tested | — | — |
| 2017 | Not tested | — | — |
| 2018 | Not tested | — | — |
| 2019 | Not tested | — | — |
| 2020 | 89 | 2 | 2.2% |
| 2021 | 365 | 14 | 3.8% |
| 2022 | 269 | 12 | 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: 2013, 2014, 2020, 2021, 2022.