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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

Oklahoma University

NOTE: Oklahoma University purchases water from Norman which is required to test for chlorodifluoromethane. Sample information shown below was taken by Norman.

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.

 

54

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
2013ND520ND
2014ND10ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

NOTE: Oklahoma University purchases water from Norman which is required to test for chlorodifluoromethane. Sample information shown below was taken by Norman.

Date Lab ID Result
2013-04-08713229-8520ND
2013-04-08713227-8520ND
2013-04-08713272-8528ND
2013-04-08713328-8528ND
2013-04-08713250-8520ND
2013-04-08713268-8528ND
2013-04-08713252-8520ND
2013-04-08713266-8520ND
2013-04-08713242-8520ND
2013-04-08713324-8528ND
2013-04-08713289-8528ND
2013-04-08713262-8520ND
2013-04-08713254-8520ND
2013-04-08713308-8528ND
2013-04-08713225-8520ND
2013-04-08713316-8528ND
2013-04-08713235-8528ND
2013-04-08713314-8528ND
2013-04-08713322-8528ND
2013-04-08713196-8520ND
2013-04-08713199-8520ND
2013-04-08713258-8520ND
2013-04-08713248-8572ND
2013-04-08713304-8528ND
2013-04-08713270-8528ND
2013-07-10730579-9308ND
2013-07-10730583-9334ND
2013-10-16753346-10045ND
2013-10-16753511-10058ND
2013-10-16753429-10050ND
2013-10-16753754-10058ND
2013-10-16753386-10045ND
2013-10-16753421-10050ND
2013-10-16753350-10045ND
2013-10-16753410-10050ND
2013-10-16753513-10058ND
2013-10-16753382-10045ND
2013-10-16753423-10050ND
2013-10-16753509-10058ND
2013-10-16753427-10050ND
2013-10-16753401-10050ND
2013-10-16753418-10050ND
2013-10-16753413-10058ND
2013-10-16753352-10045ND
2013-10-16753425-10050ND
2013-10-16753348-10045ND
2013-10-16753416-10050ND
2013-10-16753384-10045ND
2013-10-16753380-10045ND
2013-10-16753397-10050ND
2013-10-16753399-10050ND
2013-10-16753378-10050ND
2014-02-11770224-10725ND
2014-02-11770264-10759ND