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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

WA of Great Neck North

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.

MORE ABOUT THIS CONTAMINANT

 

72

Samples

2

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.225 ppm111ND - 2.48 ppm
20150.213 ppm111ND - 2.34 ppm
2016ND130ND
2017ND80ND
2018ND130ND
2019ND160ND

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
2014-03-191403D53-001-PRIND
2014-04-041404375-001-PRI2.48 ppm
2014-04-091404724-001-PRIND
2014-05-071405482-001-PRIND
2014-05-281405J51-001-PRIND
2014-06-111406828-007-PRIND
2014-06-251406I67-001-PRIND
2014-07-021407155-001-PRIND
2014-07-151407B43-001-PRIND
2014-07-231407G58-001-PRIND
2014-08-131408872-001-PRIND
2015-04-291504M38-001-PRIND
2015-05-131505959-001-PRIND
2015-05-191505D35-001-PRIND
2015-05-271505J23-001-PRIND
2015-06-171506E38-001-PRIND
2015-07-011507070-006-PRIND
2015-07-021507143-001-PRIND
2015-07-081507541-007-PRI2.34 ppm
2015-08-051508396-001-PRIND
2015-09-181509E22-001-PRIND
2015-10-151510B96-002-PRIND
2016-02-021602178-001ND
2016-02-041602355-001-PRIND
2016-02-041602355-002-PRIND
2016-03-231603J11-003-PRIND
2016-04-181604F80-002-PRIND
2016-04-181604F8-001-PRIND
2016-05-251605O21-003-PRIND
2016-05-251605O21-002-PRIND
2016-06-081606815-002-PRIND
2016-06-081606815-001-PRIND
2016-06-151606F49-001-PRIND
2016-07-201607H45-004-PRIND
2016-09-281609P07-001-PRIND
2017-01-11708895004-PRIND
2017-01-18709391004-PRIND
2017-04-197016353001-PRIND
2017-04-197016353002-PRIND
2017-05-167018709004ND
2017-05-257019627002-PRIND
2017-05-257019627001-PRIND
2017-05-317019992001-PRIND
2018-02-167043241001ND
2018-04-117048019004-PRIND
2018-04-117048019005-PRIND
2018-04-257049567002-PRIND
2018-05-037050448001-SECND
2018-05-167051868001-SECND
2018-05-317053307003-SECND
2018-07-257059413001-PRIND
2018-09-057063752002ND
2018-09-197065375002-PRIND
2018-11-217071803004ND
2018-11-217071803005-PRIND
2018-11-217071803003-PRIND
2019-02-257080571001-PRIND
2019-04-017084027001-SECND
2019-04-177086226001-SECND
2019-05-297091243001-PRIND
2019-09-1170104595007-PRIND
2019-09-1170104595006-PRIND
2019-10-0270106959004-PRIND
2019-10-0270106959003-PRIND
2019-10-1670108703002ND
2019-10-1670108703001ND
2019-10-1670108703003-PRIND
2019-12-2470116457005-PRIND
2019-12-2470116457003-PRIND
2019-12-2470116457004-PRIND
2019-12-2470116457006-PRIND
2019-12-2470116457002-PRIND