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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Kingston Water Department

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND70ND
2013N/A00N/A
2014ND70ND
2015ND70ND
2016ND60ND
2017ND60ND

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 Result
2012-04-27ND
2012-04-27ND
2012-04-27ND
2012-04-27ND
2012-04-27ND
2012-04-27ND
2012-04-27ND
2014-05-23ND
2014-05-23ND
2014-05-23ND
2014-05-23ND
2014-05-23ND
2014-05-23ND
2014-05-23ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2015-05-07ND
2016-05-03ND
2016-05-03ND
2016-05-03ND
2016-05-03ND
2016-05-03ND
2016-05-03ND
2017-06-01ND
2017-06-01ND
2017-06-01ND
2017-06-01ND
2017-06-01ND
2017-06-01ND