Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chlorodifluoromethane

La Verne WD

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-21B4D2156-03ND
2014-04-21B4D2156-01ND
2014-07-21B4G2219-03ND
2014-07-21B4G2219-01ND
2014-10-13B4J1322-03ND
2014-10-13B4J1322-01ND
2015-01-12B5A1037-03ND
2015-01-12B5A1037-01ND