Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

City of Sundown

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND40ND
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
2018-01-11Q1801555016ND
2018-01-11Q1801555019ND
2019-01-08Q1900776005ND
2019-01-08Q1900776007ND
2020-01-14Q2001302001ND
2020-01-14Q2001302003ND
2021-01-20Q2101443003ND
2021-04-05Q2108480010ND
2021-07-01Q2117329003ND
2021-10-05Q2127289002ND
2022-01-13Q2201435005ND
2022-01-13Q2201435007ND
2022-04-28Q2212820002ND
2022-09-20Q2228114003ND
2023-01-09Q2300847001ND
2023-04-03Q2312040006ND