Know Your Environment. Protect Your Health.

Nitrite

Middleville

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND60ND
2020ND160ND
2021ND240ND
2022N/A00N/A
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
2019-09-23LLI66305ND
2019-09-23LLI66306ND
2019-09-23LLI66309ND
2019-09-23LLI66303ND
2019-09-23LLI66310ND
2019-09-23LLI66307ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-07-21ND
2020-09-15ND
2020-09-15ND
2020-09-15ND
2020-09-15ND
2020-09-15ND
2020-10-20ND
2020-10-20ND
2020-10-20ND
2020-10-20ND
2020-10-20ND
2021-01-05ND
2021-01-05ND
2021-01-05ND
2021-01-05ND
2021-01-05ND
2021-02-23ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-04-13ND
2021-07-07ND
2021-07-07ND
2021-07-07ND
2021-07-07ND
2021-07-07ND
2021-07-07ND
2021-10-12ND
2021-10-12ND
2021-10-12ND
2021-10-12ND
2021-10-12ND
2021-10-12ND