Food × analyte
1-Naphthol on tomatoes
1996–2023 · 6 tested years
1,096samples tested
for this analyte
for this analyte
10samples with
a detection
a detection
0.9%of analyte-tested samples
Testing detected 1-Naphthol in 10 of 1,096 tomatoes samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 7,783 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
6 tested years between 1996 and 2023. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1996 | 36 | 0 | 0.0% |
| 1997 | 141 | 4 | 2.8% |
| 1998 | 142 | 5 | 3.5% |
| 1999 | 80 | 1 | 1.2% |
| 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 | 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 | Not tested | — | — |
| 2022 | 349 | 0 | 0.0% |
| 2023 | 348 | 0 | 0.0% |
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: 1996, 1997, 1998, 1999, 2022, 2023.