Know Your Environment. Protect Your Health.

Chloromethane

Calif State Polytechnical Univ - Pomona

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND10ND
2020ND10ND
2021N/A00N/A
2022ND20ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-07B4D0711-01ND
2014-07-08B4G0774-01ND
2014-10-07B4J0645-01ND
2015-01-14B5A1214-01ND
2018-12-04CA1910022_005_005-201812041250ND
2019-12-17CA1910022_005_005-201912171100ND
2020-12-08CA1910022_005_005-202012081210ND
2022-06-07CA1910022_005_005-202206071035ND
2022-12-06CA1910022_005_005-202212061050ND
2023-12-05CA1910022_005_005-202312051015ND