Know Your Environment. Protect Your Health.

Dichlorodifluoromethane

Nob Hill Water Association

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020N/A00N/A
2021ND30ND
2022ND50ND
2023N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-06ND
2021-07-074146288ND
2021-07-074146287ND
2021-07-074144639ND
2022-03-214258505ND
2022-06-064298839ND
2022-08-154327034ND
2022-09-144344892ND
2022-10-114356385ND