Know Your Environment. Protect Your Health.

Nitrite

Clark Public Utilities

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.

 

19

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
2019N/A00N/A
2020N/A00N/A
2021ND30ND
2022ND130ND
2023ND30ND

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
2021-06-294136311ND
2021-06-294136312ND
2021-08-024171314ND
2022-07-074329451ND
2022-07-074329449ND
2022-07-074329450ND
2022-07-284329442ND
2022-07-284329443ND
2022-08-034329438ND
2022-08-034329439ND
2022-08-034329399ND
2022-08-044329457ND
2022-08-044329459ND
2022-08-044329455ND
2022-08-044329456ND
2022-08-164364187ND
2023-04-064439683ND
2023-06-014474475ND
2023-09-194531977ND