Know Your Environment. Protect Your Health.

Nitrite

City of Sunnyside

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.

 

16

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
2019ND10ND
2020N/A00N/A
2021ND70ND
2022ND40ND
2023ND40ND

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
2019-11-05ND
2021-04-064095772ND
2021-08-254164005ND
2021-08-254164006ND
2021-08-254164007ND
2021-09-214172737ND
2021-09-214172738ND
2021-09-214180795ND
2022-04-064262959ND
2022-08-244334339ND
2022-08-244334335ND
2022-08-244334337ND
2023-05-244496717ND
2023-05-244496718ND
2023-06-134548835ND
2023-06-134548836ND