Chlorodifluoromethane
San Francisco City Water System
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | ND | 8 | 0 | ND |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2013-01-31 | 201302010153AM | ND |
2013-02-20 | 201302220337AM | ND |
2013-04-29 | 201304300195AM | ND |
2013-06-06 | 201306070190AM | ND |
2013-07-30 | 201307310290AM | ND |
2013-08-12 | 201308130156AM | ND |
2013-10-07 | 201310080350AM | ND |
2013-10-10 | 201310110406AM | ND |