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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

City of Nogales

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND100ND
2016ND10ND
2017ND20ND
2018ND100ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-272998974ND
2014-09-303114791ND
2015-06-243269843ND
2015-06-243269829ND
2015-06-243269822ND
2015-06-243269815ND
2015-06-24326936ND
2015-12-083371695ND
2015-12-083371689ND
2015-12-083371680ND
2015-12-083371657ND
2015-12-083371642ND
2016-09-293555619ND
2017-03-153655652ND
2017-08-153761090ND
2018-03-053886306ND
2018-04-263921892ND
2018-04-263921884ND
2018-05-083933073ND
2018-05-083933044ND
2018-05-163939487ND
2018-08-144024606ND
2018-12-311812-154-01ND
2018-12-311812-153-01ND
2018-12-311812-152-01ND
2019-03-191903-106-01ND
2019-03-191903-108-01ND
2019-03-191903-107-01ND