Know Your Environment. Protect Your Health.

Nitrite

Medfield Estates S/d

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019N/A00N/A
2020ND50ND
2021ND50ND
2022ND50ND
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
2018-01-31CA18366-02ND
2018-01-31CA18366-04ND
2018-01-31CA18366-01ND
2018-02-05CB01630-01ND
2018-02-21CB02501-01ND
2020-01-08CC20031-01ND
2020-01-08CC20031-02ND
2020-01-08CC20031-03ND
2020-01-08CC20031-04ND
2020-01-08CC20031-05ND
2021-01-20CD18670-04ND
2021-01-20CD18670-05ND
2021-01-20CD18670-02ND
2021-01-20CD18670-01ND
2021-02-11CE02098-01ND
2022-01-25CE17863-01ND
2022-01-25CE17863-02ND
2022-01-25CE17863-04ND
2022-01-25CE17863-05ND
2022-01-26CF01150-01ND
2023-01-25752-1764-1ND
2023-01-25752-1764-2ND
2023-01-25752-1764-3ND
2023-01-25752-1764-4ND
2023-01-25752-1764-5ND