Know Your Environment. Protect Your Health.

Nitrite

Yadkinville, Town 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND30ND
2021ND20ND
2022ND20ND
2023ND10ND

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
2018-04-0592379788001N+NND
2018-05-1792385214001N+NND
2019-04-0492424085001_37712ND
2020-02-2792467099001_37712ND
2020-11-1792506638001_37712ND
2020-11-1792506638002_37712ND
2021-11-1092572132001_37738ND
2021-11-1092572132002_37738ND
2022-08-1192620004001_37712ND
2022-09-0792624364001_37712ND
2023-01-0592645353001_37712ND