Know Your Environment. Protect Your Health.

Nitrite

Selah City Of

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020N/A00N/A
2021ND50ND
2022ND40ND
2023ND50ND

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
2018-03-20ND
2018-03-20ND
2018-03-20ND
2018-08-08ND
2018-08-08ND
2018-10-03ND
2019-03-26ND
2019-03-26ND
2019-08-07ND
2019-08-07ND
2019-10-08ND
2019-10-24ND
2021-03-234087789ND
2021-06-154126736ND
2021-08-104148155ND
2021-09-284175733ND
2021-09-284175734ND
2022-03-294260318ND
2022-07-064314523ND
2022-08-084320835ND
2022-09-134344666ND
2023-03-284427358ND
2023-03-284427360ND
2023-07-194480371ND
2023-08-084499080ND
2023-09-124507737ND