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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Canton Public Water System

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND10ND
2015ND30ND
2016ND30ND
2017ND20ND

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2012-06-2523818ND
2012-06-2523822ND
2012-06-2523839ND
2013-07-0824911ND
2013-07-0824915ND
2013-07-0824934ND
2014-06-3025893ND
2015-07-2726934ND
2015-07-2726931ND
2015-07-2726929ND
2016-07-1127833ND
2016-07-1127839ND
2016-07-1127843ND
2017-07-1028784ND
2017-07-1028791ND