Food × analyte

Piperonyl butoxide on barley

2002–2003 · 2 tested years

1,177samples tested
for this analyte
37samples with
a detection
3.1%of analyte-tested samples

Testing detected Piperonyl butoxide in 37 of 1,177 barley samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 1,177 samples of this food.

Year-by-year results

Actual tested and detected sample counts.

0%25%50%75%100%2002: 4.3%, 31 of 725 tested samples2003: 1.3%, 6 of 452 tested samples20022003

2 tested years between 2002 and 2003. Gaps mean no validated tests in this release.

Read the yearly counts
Percentages use the samples actually tested in each year.
YearTestedDetectedRate
2002725314.3%
200345261.3%
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: 2002, 2003.

How we count tests, detections and missing years →

Other analytes on this food