Food × analyte
Tetrahydrophthalimide (THPI) on pears
1998–2022 · 6 tested years
2,885samples tested
for this analyte
for this analyte
211samples with
a detection
a detection
7.3%of analyte-tested samples
Testing detected Tetrahydrophthalimide (THPI) in 211 of 2,885 pears samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 7,577 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
6 tested years between 1998 and 2022. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1998 | 9 | 0 | 0.0% |
| 1999 | Not tested | — | — |
| 2000 | Not tested | — | — |
| 2001 | Not tested | — | — |
| 2002 | Not tested | — | — |
| 2003 | 165 | 1 | 0.6% |
| 2004 | 741 | 49 | 6.6% |
| 2005 | 555 | 48 | 8.6% |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | Not tested | — | — |
| 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 | 707 | 67 | 9.5% |
| 2022 | 708 | 46 | 6.5% |
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: 1998, 2003, 2004, 2005, 2021, 2022.