Chlorodifluoromethane
San Jose State University
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.
4
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 | 0.165 ppb | 2 | 2 | 0.160 ppb - 0.170 ppb |
| 2015 | 0.230 ppb | 2 | 2 | 0.220 ppb - 0.240 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 |
|---|---|---|
| 2014-07-14 | A4G0622-01A | 0.170 ppb |
| 2014-10-06 | A4I1386-01A | 0.160 ppb |
| 2015-01-21 | A4L2657-01A | 0.240 ppb |
| 2015-04-06 | A5C0837-01A | 0.220 ppb |