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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Cleveland Public Water System

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

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND480ND
2015ND40ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/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
2014-01-063114010601ND
2014-01-062114010605ND
2014-01-065114010607ND
2014-01-064114010613ND
2014-02-282114022805ND
2014-02-283114022801ND
2014-02-284114022813ND
2014-02-285114022807ND
2014-03-212114032105ND
2014-03-213114032101ND
2014-03-214114032113ND
2014-03-215114032107ND
2014-04-024114040213ND
2014-04-025114040207ND
2014-04-023114040201ND
2014-04-022114040205ND
2014-05-122114051205ND
2014-05-123114051201ND
2014-05-124114051213ND
2014-05-125114051207ND
2014-06-132114061305ND
2014-06-133114061301ND
2014-06-134114061313ND
2014-06-135114061307ND
2014-07-115114071107ND
2014-07-114114071113ND
2014-07-112114071105ND
2014-07-113114071101ND
2014-08-292114082905ND
2014-08-293114082901ND
2014-08-294114082913ND
2014-08-295114082907ND
2014-09-032114090305ND
2014-09-033114090301ND
2014-09-034114090313ND
2014-09-035114090307ND
2014-10-175114101707ND
2014-10-174114101713ND
2014-10-173114101701ND
2014-10-172114101705ND
2014-11-072114110705ND
2014-11-073114110701ND
2014-11-074114110713ND
2014-11-075114110707ND
2014-12-052114120505ND
2014-12-053114120501ND
2014-12-054114120513ND
2014-12-055114120507ND
2015-01-212115012105ND
2015-01-213115012101ND
2015-01-214115012113ND
2015-01-215115012107ND