Chlorodifluoromethane
City of Humble
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 |
|---|---|---|---|---|
| 2013 | ND | 7 | 0 | ND |
| 2014 | ND | 7 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2013-09-16 | 2897698 | ND |
| 2013-09-16 | 2897716 | ND |
| 2013-09-16 | 2897766 | ND |
| 2013-09-16 | 2897739 | ND |
| 2013-09-16 | 2897796 | ND |
| 2013-09-16 | 2897707 | ND |
| 2013-12-03 | 2939520 | ND |
| 2014-03-20 | 2996227 | ND |
| 2014-03-20 | 2995901 | ND |
| 2014-03-20 | 2995835 | ND |
| 2014-03-20 | 2996249 | ND |
| 2014-03-20 | 2995721 | ND |
| 2014-03-20 | 2997019 | ND |
| 2014-11-17 | 3140542 | ND |