Know Your Environment. Protect Your Health.

Nitrite

Sharon Water & Sewer Commission

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND30ND
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
2018-12-20CC18173ND
2018-12-20CC18174ND
2018-12-20CC18175ND
2019-12-18CE90115ND
2020-12-16CH33643ND
2021-12-15CJ99309ND
2022-12-07CM99871ND
2022-12-07CM99873ND
2022-12-07CM99872ND
2023-12-06CP61721ND
2023-12-06CP61723ND
2023-12-06CP61722ND