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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Stromsburg, City of

Dichlorodifluoromethane (Freon-12) 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
2014ND20ND
20150.167 ppb31ND - 0.500 ppb
20160.210 ppb31ND - 0.630 ppb
20170.375 ppb21ND - 0.750 ppb
20181.18 ppb221.15 ppb - 1.21 ppb
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-07324596ND
2014-10-07324597ND
2015-07-283714580.500 ppb
2015-08-31375522ND
2015-08-31375523ND
2016-08-220.630 ppb
2016-08-22ND
2016-09-06ND
2017-07-25ND
2017-08-210.750 ppb
2018-07-305601641.21 ppb
2018-08-275685221.15 ppb
2019-07-16621250ND
2019-08-26628429ND