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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

Philadelphia Water Department

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
2012N/A00N/A
2013ND90ND
2014ND30ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2013-05-081026332010ND
2013-05-081026332013ND
2013-05-081026332007ND
2013-08-051040909010ND
2013-08-051040909013ND
2013-08-051040909007ND
2013-11-051057335010ND
2013-11-051057335013ND
2013-11-051057335007ND
2014-02-04201402060555AMND
2014-02-04201402060557AMND
2014-02-04201402060553AMND