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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Clayton

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.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
20150.0500 ppb21ND - 0.1000 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-09-153103978ND
2014-12-093152551ND
2015-03-103202572ND
2015-06-0832572880.1000 ppb