Food × analyte

Permethrin Total on lettuce

1994–2001 · 3 tested years

1,478samples tested
for this analyte
177samples with
a detection
12.0%of analyte-tested samples

Testing detected Permethrin Total in 177 of 1,478 lettuce samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 6,655 samples of this food.

Year-by-year results

Actual tested and detected sample counts.

0%25%50%75%100%1994: 14.0%, 97 of 691 tested samples2000: 5.6%, 22 of 392 tested samples2001: 14.7%, 58 of 395 tested samples199419972001

3 tested years between 1994 and 2001. Gaps mean no validated tests in this release.

Read the yearly counts
Percentages use the samples actually tested in each year.
YearTestedDetectedRate
19946919714.0%
1995Not tested——
1996Not tested——
1997Not tested——
1998Not tested——
1999Not tested——
2000392225.6%
20013955814.7%
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: 1994, 2000, 2001.

How we count tests, detections and missing years →

Other analytes on this food