Food × analyte
1-Naphthol on spinach, canned
1998–2019 · 5 tested years
922samples tested
for this analyte
for this analyte
118samples with
a detection
a detection
12.8%of analyte-tested samples
Testing detected 1-Naphthol in 118 of 922 spinach, canned samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 1,988 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
5 tested years between 1998 and 2019. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1998 | 1 | 1 | 100.0% |
| 1999 | Not tested | — | — |
| 2000 | Not tested | — | — |
| 2001 | Not tested | — | — |
| 2002 | Not tested | — | — |
| 2003 | Not tested | — | — |
| 2004 | 371 | 0 | 0.0% |
| 2005 | Not tested | — | — |
| 2006 | Not tested | — | — |
| 2007 | Not tested | — | — |
| 2008 | Not tested | — | — |
| 2009 | Not tested | — | — |
| 2010 | 181 | 51 | 28.2% |
| 2011 | 198 | 66 | 33.3% |
| 2012 | Not tested | — | — |
| 2013 | Not tested | — | — |
| 2014 | Not tested | — | — |
| 2015 | Not tested | — | — |
| 2016 | Not tested | — | — |
| 2017 | Not tested | — | — |
| 2018 | Not tested | — | — |
| 2019 | 171 | 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: 1998, 2004, 2010, 2011, 2019.