What’s Detected?

Food × analyte

Metolachlor oxanilic acid (OA) on water, groundwater

2007–2013 · 7 tested years

1,835samples tested
for this analyte
430samples with
a detection
23.4%of analyte-tested samples

Testing detected Metolachlor oxanilic acid (OA) in 430 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: 8.8%, 24 of 272 tested samples2008: 10.0%, 25 of 249 tested samples2009: 23.7%, 66 of 278 tested samples2010: 5.6%, 14 of 250 tested samples2011: 40.6%, 245 of 604 tested samples2012: 32.1%, 54 of 168 tested samples2013: 14.3%, 2 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
2007272248.8%
20082492510.0%
20092786623.7%
2010250145.6%
201160424540.6%
20121685432.1%
201314214.3%
Testing panels and detection limits change. These observations do not establish a causal trend.
All results for Water, Groundwater →Metolachlor oxanilic acid (OA) 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 ethanesulfonic acid (ESA)Desethyl atrazineAlachlor ethanesulfonic acid (ESA)Hydroxy atrazine