Dichlorodifluoromethane
City of San Jose - EVG/EDV/COY
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 16 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 14 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-21 | 9590-006-0839 | ND |
2014-01-21 | 9590-005-0914 | ND |
2014-02-18 | 9590-012-0902 | ND |
2014-02-18 | 9588-012-0902 | ND |
2014-02-25 | 9590-006-0859 | ND |
2014-02-25 | 9590-005-0948 | ND |
2014-03-27 | 1610-004-0900 | ND |
2014-03-27 | 1610-003-0810 | ND |
2014-03-27 | 1610-002-1000 | ND |
2014-03-27 | 1610-001-1130 | ND |
2014-04-15 | 1610-013-0845 | ND |
2014-04-15 | 1610-011-0930 | ND |
2014-08-05 | 1610-007-0920 | ND |
2014-08-26 | 1610-013-0918 | ND |
2014-08-26 | 1610-012-1008 | ND |
2014-08-26 | 1610-011-1125 | ND |
2017-01-17 | 1610-004-0925 | ND |
2017-01-17 | 1610-002-0835 | ND |
2017-01-17 | 1610-001-1036 | ND |
2017-01-31 | 1610-003-0819 | ND |
2017-04-11 | 1610-004-0850 | ND |
2017-04-11 | 1610-003-0755 | ND |
2017-04-11 | 1610-002-0950 | ND |
2017-04-11 | 1610-001-1125 | ND |
2017-05-02 | 1610-011-1002 | ND |
2017-08-01 | 1610-012-0950 | ND |
2017-08-01 | 1610-011-1030 | ND |
2017-09-12 | 5867-004-0943 | ND |
2017-09-26 | 1610-013-1030 | ND |
2017-12-19 | 1610-013-0920 | ND |
2019-05-14 | 1610-012-0949 | ND |