Know Your Environment. Protect Your Health.

Nitrite

Nelson Park

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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.001000 ppm21ND - 0.00200 ppm
20190.001000 ppm21ND - 0.00200 ppm
20200.00412 ppm440.00198 ppm - 0.00649 ppm
20210.00243 ppm220.00234 ppm - 0.00252 ppm
20220.00149 ppm21ND - 0.00298 ppm
20230.00103 ppm21ND - 0.00206 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