Chlorodifluoromethane
Nob Hill Water Association
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.
9
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 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 |
|---|---|---|
| 2014-04-21 | WA97-SE1-14-0709 | ND |
| 2014-04-21 | WA97-SE1-14-0709 | ND |
| 2014-04-21 | WA97-SE1-14-0709 | ND |
| 2014-09-09 | WA97-SE1-14-1795 | ND |
| 2014-09-09 | WA97-SE1-14-1795 | ND |
| 2015-05-14 | WA97-SE2-15-0960 | ND |
| 2015-05-14 | WA97-SE1-15-0960 | ND |
| 2015-10-06 | WA97-SE2-15-2166 | ND |
| 2015-10-06 | WA97-SE2-15-2166 | ND |