Nitrite

Brooklyn Manor

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	Detections	Range of results
2014	ND	4	0	ND
2015	0.00425 ppm	4	1	ND - 0.0170 ppm
2016	ND	4	0	ND
2017	ND	4	0	ND
2018	0.00285 ppm	4	1	ND - 0.0114 ppm
2019	ND	4	0	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
2014-01-21	E401B97-2NOX	ND
2014-04-21	E404I45-2NOX	ND
2014-07-28	E407P75-2NOX	ND
2014-10-31	E410R60-2NOX	ND
2015-01-19	E501B69-1NOX	ND
2015-04-06	E504327-2NOX	0.0170 ppm
2015-07-20	E507L39-6NOX	ND
2015-10-16	E510G78-2NOX	ND
2016-01-11	E601676-2NOX	ND
2016-04-18	E604H36-2NOX	ND
2016-07-22	E607O23-2NOX	ND
2016-10-28	E610U28-2NOX	ND
2017-01-09	E701625-2NOX	ND
2017-04-11	D7D0813-02NOX	ND
2017-07-25	D7G2247-02NOX	ND
2017-10-19	D7J1915-02NOX	ND
2018-01-12	D8A0845-02NOX	ND
2018-04-25	D8D2009-02NOX	0.0114 ppm
2018-07-26	D8G2524-02NOX	ND
2018-10-15	D8J1770-02NOX	ND
2019-01-24	D9A1853-02NOX	ND
2019-04-23	D9D2195-02NOX	ND
2019-07-26	D9G2977-02NOX	ND
2019-10-15	D9J0274-02NOX	ND