Food × analyte
Pentachloroaniline (PCA) on potatoes
1994–2024 · 8 tested years
3,920samples tested
for this analyte
for this analyte
128samples with
a detection
a detection
3.3%of analyte-tested samples
Testing detected Pentachloroaniline (PCA) in 128 of 3,920 potatoes samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 7,191 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
8 tested years between 1994 and 2024. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1994 | 28 | 0 | 0.0% |
| 1995 | Not tested | — | — |
| 1996 | Not tested | — | — |
| 1997 | Not tested | — | — |
| 1998 | Not tested | — | — |
| 1999 | Not tested | — | — |
| 2000 | Not tested | — | — |
| 2001 | Not tested | — | — |
| 2002 | Not tested | — | — |
| 2003 | Not tested | — | — |
| 2004 | Not tested | — | — |
| 2005 | Not tested | — | — |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | 528 | 5 | 0.9% |
| 2009 | 534 | 27 | 5.1% |
| 2010 | Not tested | — | — |
| 2011 | Not tested | — | — |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | 707 | 47 | 6.6% |
| 2016 | 708 | 31 | 4.4% |
| 2017 | Not tested | — | — |
| 2018 | Not tested | — | — |
| 2019 | Not tested | — | — |
| 2020 | Not tested | — | — |
| 2021 | Not tested | — | — |
| 2022 | 529 | 5 | 0.9% |
| 2023 | 709 | 10 | 1.4% |
| 2024 | 177 | 3 | 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: 1994, 2008, 2009, 2015, 2016, 2022, 2023, 2024.