Know Your Environment. Protect Your Health.

Nitrite

City of Rexburg

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND60ND
2020ND20ND
2021N/A00N/A
2022ND90ND
2023N/A00N/A

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

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
2018-06-29IB18070188001ND
2018-06-29IB18070177001ND
2018-08-01N1813251ND
2019-01-08N1851941ND
2019-12-17N1955401ND
2019-12-17N1955421ND
2019-12-17N1955441ND
2019-12-17N1955451ND
2019-12-17N1955461ND
2020-11-03N2040731ND
2020-11-03N2040721ND
2022-06-27NB22062447003ND
2022-06-27NB22062447004ND
2022-06-27NB22062447005ND
2022-06-27NB22062447006ND
2022-06-27IB22062447001ND
2022-06-27IB22062447002ND
2022-06-27IB22062447007ND
2022-06-27IB22062447008ND
2022-06-27IB22062447009ND