Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

River Run S/d

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

11

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
2021ND20ND
2022ND20ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-19CB02658-01ND
2018-07-16CB09180-01ND
2019-04-30CC03139-01ND
2019-07-30CC09260-01ND
2020-04-27CD02849-01ND
2020-07-29CD08830-01ND
2021-06-03CE02375-01ND
2021-08-06CE07105-01ND
2022-05-05CF03515-01ND
2022-08-18CF09401-01ND
2023-05-22752-7477-1ND