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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

Los Angeles CWWD 40, R24, 27,33-Pearblsm

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.

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33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND110ND
2016ND50ND
2017N/A00N/A
2018ND80ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-075442-020-0958ND
2014-05-075442-019-0941ND
2014-05-075442-014-1013ND
2014-05-075442-005-0929ND
2014-08-065442-002-1028ND
2015-05-125442-019-0909ND
2015-05-125442-020-1030ND
2015-05-125442-014-0909ND
2015-05-125442-005-0931ND
2015-05-125442-002-1052ND
2015-06-185442-005-1114ND
2015-06-185442-020-1020ND
2015-06-185442-019-1150ND
2015-08-195442-005-0927ND
2015-08-195442-020-0954ND
2015-08-195442-019-0905ND
2016-05-185442-019-1145ND
2016-05-185442-002-1010ND
2016-05-185442-014-1020ND
2016-05-185442-005-1115ND
2016-08-315442-020-1100ND
2018-08-279590-014-1047ND
2018-08-279590-002-1003ND
2018-08-289590-020-1111ND
2018-08-289590-005-1022ND
2018-10-099590-005-0931ND
2018-10-099590-020-1023ND
2018-10-109590-014-1013ND
2018-10-109590-002-1053ND
2019-01-089590-014-1130ND
2019-01-089590-002-1113ND
2019-08-199590-020-1002ND
2019-12-119590-005-0859ND