Know Your Environment. Protect Your Health.

Nitrite

Maunaolu Plantation

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND30ND
2021ND40ND
2022ND30ND
2023ND20ND

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
2018-04-03C18-04-0007ND
2018-06-25180626-2229-764-01ND
2018-08-27180828-2229-785-01ND
2018-08-27C18-08-0239ND
2018-12-12C18-12-0020ND
2019-03-11C19-03-0032ND
2019-05-14C19-05-0062ND
2019-07-16C19-07-0143ND
2019-10-22C19-10-0082ND
2020-05-11ND
2020-09-08ND
2020-12-01ND
2021-03-02ND
2021-06-30ND
2021-09-08ND
2021-11-17ND
2022-03-09ND
2022-06-27ND
2022-09-19ND
2023-03-06ND
2023-11-29ND