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EWG's Tap Water Database — 2019 UPDATE

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Fluoride

Syracuse City

Fluoride occurs naturally in surface and groundwater and is also added to drinking water by many water systems. Read More.

Fluoride has been promoted as a chemical that reduces dental cavities. Yet it is now well-established that fluoride primarily exerts its protective effects through topical mechanisms, such as sodium fluoride in toothpaste and mouthwash. In contrast, long-term ingestion of fluoride in water increases dental fluorosis, which includes mottling, pitting and weakening of the teeth. EPA's maximum legal limit is set at 4 parts per million (ppm) to prevent skeletal fluorosis, a condition where bones become brittle and more susceptible to fractures, although these effects may occur at lower doses.

Even fluoride levels of 0.7 ppm, the amount of fluoride in drinking water recommended by the U.S. Public Health Service, can result in too much fluoride for bottle-fed babies. EWG recommends that caregivers mix baby formula with fluoride-free water. The National Toxicology Program is investigating the potential for low doses of fluoride to alter thyroid function and childhood brain development.

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.750 ppm110.750 ppm
20130.890 ppm110.890 ppm
20140.770 ppm110.770 ppm
20150.730 ppm110.730 ppm
20160.630 ppm110.630 ppm
2017N/A00N/A

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 4 ppm

ppm = parts per million

All test results

Date Lab ID Result
2012-05-082012 PRI IOC SYR0.750 ppm
2013-05-142013 PRI IOC SYR0.890 ppm
2014-05-132Q2014 PRI IOC S0.770 ppm
2015-05-132015 PRI IOC SYR0.730 ppm
2016-05-102016 PRI IOC SYR0.630 ppm