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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Borough of Atglen

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND70ND
2016ND100ND
2017ND50ND
2018ND60ND
2019ND80ND

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
2014-07-2914 17741ND
2014-09-1514 18824ND
2014-12-2214 20237ND
2015-03-0212510984ND
2015-04-3012628368ND
2015-06-2212876758ND
2015-09-1413259528ND
2015-10-0813384704ND
2015-12-1513628332ND
2015-12-2913628266ND
2016-01-0513748140ND
2016-01-1213748142ND
2016-01-1913748144ND
2016-01-2613748146ND
2016-02-0213748212ND
2016-05-1014244772ND
2016-06-2114399414ND
2016-08-2314729333ND
2016-10-1115070372ND
2016-11-2215221160ND
2017-01-1715511778ND
2017-04-1115930774ND
2017-05-3016088458ND
2017-07-1116407595ND
2017-10-1016874683ND
2018-01-098011250-01ND
2018-05-018041270-02ND
2018-05-018041271-01ND
2018-07-108071384-01ND
2018-10-098101403-01ND
2018-11-208112311-01ND
2019-01-089011094-02ND
2019-01-089011094-01ND
2019-04-099041376-02ND
2019-04-099041376-01ND
2019-07-099071430-02ND
2019-07-099071430-01ND
2019-10-089101170-01ND
2019-10-089101170-02ND