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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Classic Heights

Dichlorodifluoromethane (Freon-12) 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
20141.000 ppb111.000 ppb
2015ND10ND
2016N/A00N/A
2017ND10ND
2018ND10ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-03736411.000 ppb
2015-04-0774886ND
2017-06-05ND
2018-04-03ND