Chlorodifluoromethane
City of Frederick
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.
16
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 16 | 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 |
|---|---|---|
| 2015-03-10 | 2058859001 | ND |
| 2015-03-18 | 2060555001 | ND |
| 2015-03-18 | 2060554001 | ND |
| 2015-03-18 | 2060557001 | ND |
| 2015-06-10 | 2076420001 | ND |
| 2015-06-10 | 2076429001 | ND |
| 2015-06-10 | 2076433001 | ND |
| 2015-06-10 | 2076425001 | ND |
| 2015-09-02 | 2093665001 | ND |
| 2015-09-02 | 2093663001 | ND |
| 2015-09-02 | 2093664001 | ND |
| 2015-09-02 | 2093661001 | ND |
| 2015-12-09 | 2113101001 | ND |
| 2015-12-09 | 2113096001 | ND |
| 2015-12-09 | 2113097001 | ND |
| 2015-12-09 | 2113102001 | ND |