Dichlorodifluoromethane
Holliston 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 9 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 6 | 0 | ND |
2018 | ND | 6 | 0 | ND |
2019 | ND | 6 | 0 | ND |
ppb = parts per billion
All test results
Date | Result |
---|---|
2014-03-12 | ND |
2014-06-12 | ND |
2014-06-12 | ND |
2014-06-16 | ND |
2014-06-16 | ND |
2014-06-16 | ND |
2014-06-16 | ND |
2014-09-09 | ND |
2014-11-04 | ND |
2015-05-05 | ND |
2015-05-05 | ND |
2015-05-12 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2016-05-03 | ND |
2016-05-03 | ND |
2016-05-03 | ND |
2016-05-03 | ND |
2016-05-24 | ND |
2016-05-24 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2019-05-14 | ND |
2019-05-14 | ND |
2019-05-14 | ND |
2019-05-14 | ND |
2019-05-14 | ND |
2019-05-14 | ND |