What’s Detected?

Food × analyte

Tetrahydrophthalimide (THPI) on apples

2002–2016 · 8 tested years

4,223samples tested
for this analyte
642samples with
a detection
15.2%of analyte-tested samples

Testing detected Tetrahydrophthalimide (THPI) in 642 of 4,223 apples samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 9,975 samples of this food.

Year-by-year results

Actual tested and detected sample counts.

0%25%50%75%100%2002: 100.0%, 8 of 8 tested samples2004: 12.7%, 72 of 568 tested samples2005: 15.3%, 114 of 743 tested samples2009: 15.9%, 118 of 744 tested samples2010: 16.9%, 126 of 744 tested samples2014: 20.9%, 37 of 177 tested samples2015: 14.4%, 102 of 708 tested samples2016: 12.2%, 65 of 531 tested samples200220092016

8 tested years between 2002 and 2016. Gaps mean no validated tests in this release.

Read the yearly counts
Percentages use the samples actually tested in each year.
YearTestedDetectedRate
200288100.0%
2003Not tested——
20045687212.7%
200574311415.3%
2006Not tested——
2007Not tested——
2008Not tested——
200974411815.9%
201074412616.9%
2011Not tested——
2012Not tested——
2013Not tested——
20141773720.9%
201570810214.4%
20165316512.2%
Testing panels and detection limits change. These observations do not establish a causal trend.
All results for Apples →Tetrahydrophthalimide (THPI) across foods →

About these results

Source: USDA Pesticide Data Program. Included annual releases: 2002, 2004, 2005, 2009, 2010, 2014, 2015, 2016.

How we count tests, detections and missing years →

Other analytes on this food

Diphenylamine (DPA)ThiabendazoleAzinphos methylPyrimethanil