Food × analyte
Chlorpyrifos on corn grain
2007–2022 · 4 tested years
2,027samples tested
for this analyte
for this analyte
316samples with
a detection
a detection
15.6%of analyte-tested samples
Testing detected Chlorpyrifos in 316 of 2,027 corn grain samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 2,037 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
4 tested years between 2007 and 2022. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2007 | 650 | 195 | 30.0% |
| 2008 | 650 | 116 | 17.8% |
| 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 | Not tested | — | — |
| 2020 | Not tested | — | — |
| 2021 | 418 | 3 | 0.7% |
| 2022 | 309 | 2 | 0.6% |
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: 2007, 2008, 2021, 2022.