What’s Detected?

Food × analyte

Metolachlor ethanesulfonic acid (ESA) on water, groundwater

2007–2013 · 7 tested years

1,835samples tested
for this analyte
679samples with
a detection
37.0%of analyte-tested samples

Testing detected Metolachlor ethanesulfonic acid (ESA) in 679 of 1,835 water, groundwater samples actually tested for this analyte. This percentage uses analyte-tested samples, not all 1,835 samples of this food.

Year-by-year results

Actual tested and detected sample counts.

0%25%50%75%100%2007: 20.2%, 55 of 272 tested samples2008: 20.1%, 50 of 249 tested samples2009: 38.8%, 108 of 278 tested samples2010: 14.4%, 36 of 250 tested samples2011: 56.5%, 341 of 604 tested samples2012: 50.6%, 85 of 168 tested samples2013: 28.6%, 4 of 14 tested samples200720102013

7 tested years between 2007 and 2013. Gaps mean no validated tests in this release.

Read the yearly counts
Percentages use the samples actually tested in each year.
YearTestedDetectedRate
20072725520.2%
20082495020.1%
200927810838.8%
20102503614.4%
201160434156.5%
20121688550.6%
201314428.6%
Testing panels and detection limits change. These observations do not establish a causal trend.
All results for Water, Groundwater →Metolachlor ethanesulfonic acid (ESA) across foods →

About these results

Source: USDA Pesticide Data Program. Included annual releases: 2007, 2008, 2009, 2010, 2011, 2012, 2013.

How we count tests, detections and missing years →

Other analytes on this food

Metolachlor oxanilic acid (OA)Desethyl atrazineAlachlor ethanesulfonic acid (ESA)Hydroxy atrazine