Dichlorodifluoromethane
City of Rohnert Park
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.
27
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 | 10 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-09-22 | 9590-012-1110 | ND |
| 2015-09-22 | 9590-029-1020 | ND |
| 2015-09-22 | 9590-001-0850 | ND |
| 2015-09-22 | 9590-039-1008 | ND |
| 2015-09-22 | 9590-040-1053 | ND |
| 2015-09-22 | 9590-005-1033 | ND |
| 2015-09-22 | 9590-004-0914 | ND |
| 2015-09-22 | 9590-002-0938 | ND |
| 2015-11-23 | 9590-016-1115 | ND |
| 2015-12-29 | 9590-030-0903 | ND |
| 2016-09-06 | 9590-035-1005 | ND |
| 2016-09-06 | 9590-034-0945 | ND |
| 2016-09-06 | 9590-018-0907 | ND |
| 2016-09-06 | 9590-021-0910 | ND |
| 2016-09-06 | 9590-022-0950 | ND |
| 2016-09-06 | 9590-027-0850 | ND |
| 2016-09-13 | 9590-033-0941 | ND |
| 2017-07-18 | 1610-041-1100 | ND |
| 2017-07-18 | 1610-016-0800 | ND |
| 2017-07-18 | 1610-014-0920 | ND |
| 2017-07-18 | 1610-011-0831 | ND |
| 2017-07-18 | 1610-010-0855 | ND |
| 2017-07-18 | 1610-009-1030 | ND |
| 2017-07-18 | 1610-008-1000 | ND |
| 2017-08-01 | 1610-044-0905 | ND |
| 2018-11-06 | 1610-006-0900 | ND |
| 2019-03-05 | 1610-013-1030 | ND |