Dichlorodifluoromethane
Wayland 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.
47
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 | 7 | 0 | ND |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-04-01 | ND |
| 2014-07-01 | ND |
| 2014-07-01 | ND |
| 2014-07-01 | ND |
| 2014-07-01 | ND |
| 2014-07-01 | ND |
| 2014-10-07 | ND |
| 2015-01-06 | ND |
| 2015-04-14 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-07-07 | ND |
| 2015-10-06 | ND |
| 2016-01-19 | ND |
| 2016-04-05 | ND |
| 2016-07-05 | ND |
| 2016-07-05 | ND |
| 2016-07-05 | ND |
| 2016-07-05 | ND |
| 2016-07-05 | ND |
| 2016-10-04 | ND |
| 2017-01-03 | ND |
| 2017-04-04 | ND |
| 2017-07-05 | ND |
| 2017-07-05 | ND |
| 2017-07-05 | ND |
| 2017-07-05 | ND |
| 2017-07-05 | ND |
| 2017-10-03 | ND |
| 2018-01-02 | ND |
| 2018-04-03 | ND |
| 2018-07-10 | ND |
| 2018-07-10 | ND |
| 2018-07-10 | ND |
| 2018-07-10 | ND |
| 2018-07-10 | ND |
| 2018-10-02 | ND |
| 2019-01-08 | ND |
| 2019-04-09 | ND |
| 2019-07-02 | ND |
| 2019-07-02 | ND |
| 2019-07-02 | ND |
| 2019-07-02 | ND |
| 2019-07-02 | ND |
| 2019-10-07 | ND |