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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

City of Scottsdale

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.

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41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND10ND
2016N/A00N/A
2017ND90ND
2018ND90ND
2019ND90ND

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
2014-02-05AB45662IND
2014-02-05AB45661IND
2014-02-05AB45660IND
2014-02-05AB45659IND
2014-02-11AB45852IND
2014-02-12AB45865IND
2014-02-13AB45913IND
2014-02-13AB45912IND
2014-03-13AB46644IND
2014-06-124061176-01ND
2014-06-124061175-01ND
2014-08-064080551-02TND
2014-08-27AB50551IND
2015-01-26AB54180ND
2017-01-23AB72209TND
2017-01-31AB72398TND
2017-01-31AB72396TND
2017-04-11AB74281ND
2017-04-18AZ74456ND
2017-05-03AB74952ND
2017-05-03AB74954ND
2017-05-11AB75252ND
2017-05-25AB75560ND
2018-01-04AB81857ND
2018-01-08AB81931ND
2018-01-31AB82425ND
2018-03-15AB83542ND
2018-07-24AB86878ND
2018-07-26AB86975ND
2018-07-31AB87063ND
2018-08-22AB87651ND
2018-09-13AB88206 IOCND
2019-01-08AB90901 IOCND
2019-01-28AB91381 IOCND
2019-02-20AB91936 IOCND
2019-02-21AB91994 IOCND
2019-03-08AB92407 IOCND
2019-03-14AB92537ND
2019-05-15AB93968ND
2019-06-20AB94661ND
2019-08-22AB96146ND