Know Your Environment. Protect Your Health.

Dichlorodifluoromethane

Gresham, Village 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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
20201.13 ppb111.13 ppb
20212.31 ppb112.31 ppb
20221.80 ppb21ND - 3.60 ppb
20233.33 ppb113.33 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-23560159ND
2019-07-29621243ND
2019-12-02638494ND
2020-09-146842881.13 ppb
2021-07-197459852.31 ppb
2022-07-188093123.60 ppb
2022-11-29829040ND
2023-08-288734623.33 ppb