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EWG's Tap Water Database — 2021 UPDATE

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Chlorodifluoromethane

Roslyn 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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.187 ppb72ND - 0.680 ppb
20150.280 ppb72ND - 1.000 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-1408010 0820140.630 ppb
2014-08-1502400 082014ND
2014-08-1807104 082014ND
2014-08-2007873 082014ND
2014-08-2004265 082014ND
2014-08-2501870 0820140.680 ppb
2014-08-2705852 082014ND
2015-02-1007104 022015ND
2015-02-1008010 0220151.000 ppb
2015-02-1805852 022015ND
2015-02-1804265 022015ND
2015-02-2302400 022015ND
2015-05-2207873 052015ND
2015-05-2801870 0520150.960 ppb