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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

City of Denison

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.

 

5

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
2013N/A00N/A
2014ND40ND
2015ND10ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-2435135556001AMND
2014-06-3035144086001AMND
2014-10-3035161880001AMND
2014-10-3035161880005AMND
2015-01-2935173367001AMND