Nitrite

City of Corinth

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	ND	8	ND
2015	ND	6	ND
2016	ND	6	ND
2017	ND	6	ND
2018	ND	4	ND
2019	ND	4	ND

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
2014-01-22	140123-023NI	ND
2014-01-22	140123-005NI	ND
2014-01-22	140123-006NI	ND
2014-01-22	140123-007NI	ND
2014-01-22	140123-008NI	ND
2014-01-22	140123-011NI	ND
2014-01-22	140123-021NI	ND
2014-01-22	140123-022NI	ND
2015-01-20	150121-031NI	ND
2015-01-20	150121-027NI	ND
2015-01-20	150121-026NI	ND
2015-01-20	150121-025NI	ND
2015-01-20	150121-019NI	ND
2015-01-20	150121-018NI	ND
2016-03-14	160315-036NI	ND
2016-03-14	160315-070NI	ND
2016-03-14	160315-037NI	ND
2016-03-14	160315-035NI	ND
2016-03-14	160315-034NI	ND
2016-03-14	160315-033NI	ND
2017-01-17	170118-002NI	ND
2017-01-17	170118-001NI	ND
2017-01-17	170118-003NI	ND
2017-01-17	170118-004NI	ND
2017-01-17	170118-005NI	ND
2017-01-17	170118-006NI	ND
2018-01-22	180123-025NI	ND
2018-01-22	180123-019NI	ND
2018-01-22	180123-018NI	ND
2018-01-22	180123-017NI	ND
2019-01-23	190124-019NI	ND
2019-01-23	190124-023NI	ND
2019-01-23	190124-022NI	ND
2019-01-23	190124-021NI	ND