Food × analyte
Chlorpyrifos on asparagus
2002–2019 · 8 tested years
3,908samples tested
for this analyte
for this analyte
151samples with
a detection
a detection
3.9%of analyte-tested samples
Testing detected Chlorpyrifos in 151 of 3,908 asparagus samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 3,908 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
8 tested years between 2002 and 2019. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2002 | 708 | 20 | 2.8% |
| 2003 | 351 | 10 | 2.8% |
| 2004 | Not tested | — | — |
| 2005 | Not tested | — | — |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | 372 | 11 | 3.0% |
| 2009 | 744 | 19 | 2.6% |
| 2010 | 372 | 11 | 3.0% |
| 2011 | Not tested | — | — |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | Not tested | — | — |
| 2016 | Not tested | — | — |
| 2017 | 354 | 31 | 8.8% |
| 2018 | 709 | 44 | 6.2% |
| 2019 | 298 | 5 | 1.7% |
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: 2002, 2003, 2008, 2009, 2010, 2017, 2018, 2019.