Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

High-tor Properties

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND50ND
2021ND30ND
2022ND60ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-26DW-91135ND
2018-06-26DW-91131ND
2018-06-26DW-91133ND
2019-10-299101372-02ND
2019-10-299101372ND
2019-10-299101372-03ND
2020-05-060050163-03ND
2020-05-060050164-02VND
2020-05-060050164-01VND
2020-09-140090571-01VOCND
2020-11-100110439-02VND
2021-11-151110754-04ND
2021-11-151110754-03ND
2021-11-151110754-02ND
2022-01-24EHS2200009066-01ND
2022-01-24EHS2200004720-SR-2ND
2022-01-24EHS2200004719-01VOCND
2022-01-24EHS2200004720-01VOCND
2022-01-24EHS2200004717-01VOCND
2022-02-17EHS2200009066-SR-1ND
2023-09-2723I1769-01ND
2023-10-2723J1871-01ND