Chlorodifluoromethane
City of Tacoma
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.
21
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 | 1 | 0 | ND |
| 2015 | ND | 20 | 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-06 | 201408070493AM | ND |
| 2015-03-10 | 201503110935AM | ND |
| 2015-03-10 | 201503120179AM | ND |
| 2015-03-10 | 201502170548AM | ND |
| 2015-06-09 | 201505060001AM | ND |
| 2015-06-17 | 201505060005AM | ND |
| 2015-06-29 | 201505020034AM | ND |
| 2015-07-06 | 201505020035AM | ND |
| 2015-07-08 | 201507090318AM | ND |
| 2015-07-09 | 201506300092AM | ND |
| 2015-07-09 | 201507100395AM | ND |
| 2015-08-24 | 201508250628AM | ND |
| 2015-09-09 | 201508050009AM | ND |
| 2015-09-09 | 201508050013AM | ND |
| 2015-10-13 | 201509250020AM | ND |
| 2015-12-01 | 201511130086AM | ND |
| 2015-12-02 | 201511130082AM | ND |
| 2015-12-07 | 201511130099AM | ND |
| 2015-12-07 | 201511130096AM | ND |
| 2015-12-08 | 201511130098AM | ND |
| 2015-12-08 | 201511130097AM | ND |