Food × analyte
Chlorpyrifos on green onions
2008–2018 · 3 tested years
1,451samples tested
for this analyte
for this analyte
12samples with
a detection
a detection
0.8%of analyte-tested samples
Testing detected Chlorpyrifos in 12 of 1,451 green onions samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 1,451 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
3 tested years between 2008 and 2018. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2008 | 186 | 2 | 1.1% |
| 2009 | 558 | 7 | 1.3% |
| 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 | 707 | 3 | 0.4% |
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: 2008, 2009, 2018.