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EWG's Tap Water Database — 2021 UPDATE

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Chlorpyriphos

Chatsworth

Chlorpyrifos is an organophosphate pesticide that has been widely used, but in 2021, application on food crops was banned by the EPA. Exposure to chlorpyrifos during pregnancy and early life harms the developing brain, including reduced IQ, delayed development of motor and sensory functions, and social and behavioral dysfunction.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND200ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-073867278ND
2018-02-073867269ND
2018-02-123870112ND
2018-02-123870528ND
2018-02-123870101ND
2018-02-143872720ND
2018-05-013925845ND
2018-05-013925856ND
2018-05-013925737ND
2018-05-083931354ND
2018-05-223943326ND
2018-08-074014601ND
2018-08-074014451ND
2018-08-074014612ND
2018-08-074014405ND
2018-08-084016173ND
2018-08-094018612ND
2018-11-054111200ND
2018-11-054111267ND
2018-11-134121286ND
2019-01-214179276ND
2019-01-214179281ND