Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

East Pasadena Water Company

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
2018ND40ND
2019ND20ND
2020ND20ND
2021ND40ND
2022ND20ND
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
2018-03-19CA1910020_012_012-201803190855ND
2018-03-19CA1910020_005_005-201803190940ND
2018-04-11CA1910020_012_012-201804111035ND
2018-07-12CA1910020_005_005-201807121035ND
2019-04-03CA1910020_012_012-201904031000ND
2019-07-29CA1910020_005_005-201907291225ND
2020-04-02CA1910020_012_012-202004021030ND
2020-07-09CA1910020_005_005-202007091040ND
2021-03-08CA1910020_005_005-202103080910ND
2021-03-08CA1910020_012_012-202103080845ND
2021-04-12CA1910020_012_012-202104121010ND
2021-07-13CA1910020_005_005-202107131115ND
2022-04-20CA1910020_012_012-202204201155ND
2022-08-09CA1910020_005_005-202208091125ND
2023-05-10CA1910020_012_012-202305101055ND
2023-08-16CA1910020_005_005-202308161040ND