Dichlorodifluoromethane
City of Ukiah
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.
11
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-08 | 9590-028-1400 | ND |
| 2014-07-08 | 9590-028-1400 | ND |
| 2015-07-22 | 9590-004-1154 | ND |
| 2015-07-22 | 9590-029-1239 | ND |
| 2016-07-20 | 9590-029-1141 | ND |
| 2016-07-29 | 1610-032-1345 | ND |
| 2016-09-13 | 1610-033-1110 | ND |
| 2017-07-26 | 1610-028-1040 | ND |
| 2019-07-31 | 1610-029-1400 | ND |
| 2019-07-31 | 1610-032-0905 | ND |
| 2019-09-03 | 1610-033-1045 | ND |