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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Pennsylvania American Royersford

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND120ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-0428404001ND
2015-03-0428403901ND
2015-03-0428403601ND
2015-03-0928403801ND
2015-03-1028403701ND
2015-06-1029084101ND
2015-09-0130138401ND
2015-09-0130138201ND
2015-09-0130138501ND
2015-09-0130138101ND
2015-09-1630138301ND
2015-12-0230794001ND