Dichlorodifluoromethane
Central City, City of
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 | 4 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-27 | 278474 | ND |
2014-04-07 | 293471 | ND |
2014-07-07 | 309736 | ND |
2014-10-06 | 328592 | ND |
2015-01-12 | 343320 | ND |
2015-02-02 | 343321 | ND |
2015-04-06 | 353634 | ND |
2015-05-04 | 353467 | ND |
2015-07-06 | 371015 | ND |
2015-10-05 | 391869 | ND |
2015-11-16 | 391872 | ND |
2015-11-16 | 391873 | ND |
2015-11-16 | 391871 | ND |
2015-11-16 | 391870 | ND |
2016-01-19 | ND | |
2016-04-04 | ND | |
2016-07-05 | ND | |
2016-10-17 | ND | |
2017-03-06 | ND | |
2017-06-12 | ND | |
2017-09-11 | ND | |
2017-10-10 | ND | |
2018-02-20 | 530736 | ND |
2018-05-21 | 541763 | ND |
2018-11-27 | 586677 | ND |