Know Your Environment. Protect Your Health.

Nitrite

City of Clyde

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.101 ppm42ND - 0.205 ppm
2019ND40ND
20200.121 ppm41ND - 0.483 ppm
20210.0938 ppm41ND - 0.375 ppm
20220.0310 ppm42ND - 0.0659 ppm
20230.131 ppm42ND - 0.343 ppm

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
2018-03-08Q1809705004ND
2018-06-07Q1822886004ND
2018-09-19Q18373530070.205 ppm
2018-12-12Q18512810030.200 ppm
2019-03-20Q1911589008ND
2019-05-22Q1927837002ND
2019-07-23Q1946794001ND
2019-11-18Q1977127002ND
2020-03-05Q2008307007ND
2020-06-02Q2021702002ND
2020-07-28Q2029420002ND
2020-12-01Q20475360020.483 ppm
2021-01-28Q2102265004ND
2021-05-27Q2113747007ND
2021-08-04Q21204120020.375 ppm
2021-11-30Q2132987003ND
2022-01-12Q2201150007ND
2022-01-12Q22011500080.0659 ppm
2022-04-06Q2210712004ND
2022-10-06Q22302130010.0580 ppm
2023-02-23Q23076610010.343 ppm
2023-05-25Q2319640001ND
2023-08-24Q23361820010.181 ppm
2023-11-29Q2350795003ND