Chlorodifluoromethane
City of Tigard
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.
14
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 | 4 | 0 | ND |
| 2015 | ND | 10 | 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 |
|---|---|---|
| 2014-11-18 | 201411190626AM | ND |
| 2014-11-18 | 201411190283AM | ND |
| 2014-11-18 | 201411190464AM | ND |
| 2014-11-18 | 201411190583AM | ND |
| 2015-02-11 | 201502120590AM | ND |
| 2015-02-11 | 201502120592AM | ND |
| 2015-02-11 | 201502120588AM | ND |
| 2015-05-21 | 201505220142AM | ND |
| 2015-05-21 | 201505220150AM | ND |
| 2015-05-21 | 201505220138AM | ND |
| 2015-05-21 | 201505220140AM | ND |
| 2015-08-12 | 201508130523AM | ND |
| 2015-08-12 | 201508130519AM | ND |
| 2015-08-12 | 201508130521AM | ND |