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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Sault Ste Marie

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.

MORE ABOUT THIS CONTAMINANT

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND270ND

ppm = parts per million

State and national drinking water standards and health guidelines

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
2014-09-23LLF40070ND
2018-03-06LLH69163ND
2019-06-11LLI42590ND
2019-07-10LLI49138ND
2019-07-24LLI51968ND
2019-08-07LLI55019ND
2019-08-07LLI55014ND
2019-08-07LLI55016ND
2019-08-07LLI55017ND
2019-08-07LLI55013ND
2019-08-07LLI55015ND
2019-08-21LLI58407ND
2019-09-04LLI61599ND
2019-09-18LLI65387ND
2019-09-24LLI67031ND
2019-09-24LLI67030ND
2019-09-24LLI67029ND
2019-09-24LLI67032ND
2019-10-02LLI68961ND
2019-10-16LLI71186ND
2019-10-16LLI71189ND
2019-10-16LLI71187ND
2019-10-16LLI71188ND
2019-11-06LLI75695ND
2019-11-06LLI75696ND
2019-11-20LLI78706ND
2019-11-20LLI78705ND
2019-12-04LLI81343ND
2019-12-04LLI81344ND