Dichlorodifluoromethane
Danvers Water Department
Dichlorodifluoromethane (Freon-12) 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.
18
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 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 10 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2017-08-01 | ND |
| 2017-08-01 | ND |
| 2017-08-01 | ND |
| 2017-11-28 | ND |
| 2018-01-16 | ND |
| 2018-01-16 | ND |
| 2018-05-10 | ND |
| 2018-05-10 | ND |
| 2018-08-02 | ND |
| 2018-08-13 | ND |
| 2018-08-13 | ND |
| 2018-10-15 | ND |
| 2018-10-15 | ND |
| 2018-10-15 | ND |
| 2019-03-26 | ND |
| 2019-03-26 | ND |
| 2019-04-17 | ND |
| 2019-04-17 | ND |