Know Your Environment. Protect Your Health.

Nitrite

City of Coeur D Alene

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.

 

13

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
2019ND110ND
2020N/A00N/A
2021N/A00N/A
2022ND20ND
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
2019-05-23I204186ND
2019-05-23I204189ND
2019-05-23I204187ND
2019-05-29I204288ND
2019-05-29I204287ND
2019-05-29I204291ND
2019-06-03I204362ND
2019-06-03I204360ND
2019-06-03I204361ND
2019-06-03I204363ND
2019-10-17N210114ND
2022-05-02I240583ND
2022-08-10I244760ND