Food × analyte
Diphenylamine (DPA) on apples
1994–2024 · 15 tested years
8,769samples tested
for this analyte
for this analyte
6,515samples with
a detection
a detection
74.3%of analyte-tested samples
Testing detected Diphenylamine (DPA) in 6,515 of 8,769 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.
15 tested years between 1994 and 2024. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1994 | 629 | 438 | 69.6% |
| 1995 | 691 | 489 | 70.8% |
| 1996 | 524 | 452 | 86.3% |
| 1997 | Not tested | — | — |
| 1998 | Not tested | — | — |
| 1999 | Not tested | — | — |
| 2000 | 184 | 61 | 33.2% |
| 2001 | 736 | 492 | 66.8% |
| 2002 | 556 | 424 | 76.3% |
| 2003 | Not tested | — | — |
| 2004 | 744 | 589 | 79.2% |
| 2005 | 743 | 616 | 82.9% |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | Not tested | — | — |
| 2009 | 744 | 548 | 73.7% |
| 2010 | 744 | 615 | 82.7% |
| 2011 | Not tested | — | — |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | 177 | 109 | 61.6% |
| 2015 | 708 | 582 | 82.2% |
| 2016 | 531 | 426 | 80.2% |
| 2017 | Not tested | — | — |
| 2018 | Not tested | — | — |
| 2019 | Not tested | — | — |
| 2020 | Not tested | — | — |
| 2021 | Not tested | — | — |
| 2022 | Not tested | — | — |
| 2023 | 354 | 204 | 57.6% |
| 2024 | 704 | 470 | 66.8% |
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: 1994, 1995, 1996, 2000, 2001, 2002, 2004, 2005, 2009, 2010, 2014, 2015, 2016, 2023, 2024.