Chlorodifluoromethane
City of Upland
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.
7
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 |
|---|---|---|---|---|
| 2013 | 0.0700 ppb | 2 | 1 | ND - 0.140 ppb |
| 2014 | 0.0850 ppb | 2 | 1 | ND - 0.170 ppb |
| 2015 | 0.0400 ppb | 3 | 1 | ND - 0.120 ppb |
| 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 |
|---|---|---|
| 2013-11-20 | 201311210173AM | ND |
| 2013-11-20 | 201311210175AM | 0.140 ppb |
| 2014-05-22 | 201405220588AM | 0.170 ppb |
| 2014-05-22 | 201405220579AM | ND |
| 2015-03-17 | 201503170919AM | ND |
| 2015-09-28 | 201509210037AM | 0.120 ppb |
| 2015-11-24 | 201511240895AM | ND |