Food × analyte
Chlorothalonil on winter squash
1997–2021 · 8 tested years
3,118samples tested
for this analyte
for this analyte
294samples with
a detection
a detection
9.4%of analyte-tested samples
Testing detected Chlorothalonil in 294 of 3,118 winter squash samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 5,178 samples of this food.
Year-by-year results
Actual tested and detected sample counts.
8 tested years between 1997 and 2021. Gaps mean no validated tests in this release.
Read the yearly counts
| Year | Tested | Detected | Rate |
|---|---|---|---|
| 1997 | 405 | 27 | 6.7% |
| 1998 | 502 | 38 | 7.6% |
| 1999 | 219 | 20 | 9.1% |
| 2000 | Not tested | — | — |
| 2001 | Not tested | — | — |
| 2002 | Not tested | — | — |
| 2003 | Not tested | — | — |
| 2004 | 244 | 32 | 13.1% |
| 2005 | 256 | 14 | 5.5% |
| 2006 | 109 | 9 | 8.3% |
| 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 | 677 | 69 | 10.2% |
| 2021 | 706 | 85 | 12.0% |
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: 1997, 1998, 1999, 2004, 2005, 2006, 2020, 2021.