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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Marco Island Utilities

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
20130.00333 ppm31ND - 0.01000 ppm
20140.01000 ppm440.01000 ppm
2015ND30ND
20160.01000 ppm220.01000 ppm
20170.0200 ppm440.01000 ppm - 0.0300 ppm

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 Result
2012-03-20ND
2012-04-04ND
2012-10-01ND
2013-04-04ND
2013-04-04ND
2013-10-080.01000 ppm
2014-03-180.01000 ppm
2014-03-180.01000 ppm
2014-04-240.01000 ppm
2014-10-130.01000 ppm
2015-03-16ND
2015-04-07ND
2015-10-26ND
2016-04-210.01000 ppm
2016-10-110.01000 ppm
2017-04-040.0300 ppm
2017-04-040.0300 ppm
2017-04-250.01000 ppm
2017-11-060.01000 ppm