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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Adrian

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND240ND
2013ND20ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

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
2012-01-11LLE14572ND
2012-01-11LLE14573ND
2012-02-06LLE16600ND
2012-02-06LLE16599ND
2012-03-07LLE19414ND
2012-03-07LLE19415ND
2012-04-02LLE22045ND
2012-04-02LLE22044ND
2012-05-08LLE26980ND
2012-05-08LLE26979ND
2012-06-04LLE30254ND
2012-06-04LLE30255ND
2012-07-09LLE35791ND
2012-07-09LLE35792ND
2012-08-06LLE40947ND
2012-08-06LLE40946ND
2012-09-25LLE50049ND
2012-09-25LLE50048ND
2012-10-02LLE51206ND
2012-10-02LLE51207ND
2012-11-05LLE54645ND
2012-11-05LLE54646ND
2012-12-10LLE57905ND
2012-12-10LLE57904ND
2013-01-07LLE60559ND
2013-01-07LLE60558ND