Food × analyte
1-Naphthol on blueberries
2007–2022 · 5 tested years
1,353samples tested
for this analyte
for this analyte
12samples with
a detection
a detection
0.9%of analyte-tested samples
Testing detected 1-Naphthol in 12 of 1,353 blueberries samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 3,467 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
5 tested years between 2007 and 2022. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 2007 | 4 | 4 | 100.0% |
| 2008 | 7 | 7 | 100.0% |
| 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 | 168 | 0 | 0.0% |
| 2021 | 692 | 1 | 0.1% |
| 2022 | 482 | 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: 2007, 2008, 2020, 2021, 2022.