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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Dtma Main System

Chlorodifluoromethane (Freon 22) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

MORE ABOUT THIS CONTAMINANT

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0104 ppb303ND - 0.120 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-18104902PND
2014-02-18104900PND
2014-02-18104905PND
2014-02-18104906PND
2014-02-18104907PND
2014-02-18104908PND
2014-02-19104901PND
2014-02-19104899P0.0800 ppb
2014-02-19104912P0.113 ppb
2014-02-19104911PND
2014-02-19104910PND
2014-02-19104909PND
2014-02-19104904PND
2014-02-19104903PND
2014-05-21106963PND
2014-08-18108938PND
2014-08-18108930PND
2014-08-18108937PND
2014-08-18108932PND
2014-08-18108935PND
2014-08-19108928P0.120 ppb
2014-08-19108936PND
2014-08-19108934PND
2014-08-19108929PND
2014-08-19108927PND
2014-08-19108926PND
2014-08-19108920PND
2014-08-20108933PND
2014-08-20108931PND
2014-11-24109694PND