Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Stagecoach S/d

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND10ND
2020ND30ND
2021ND10ND
2022ND10ND
2023ND30ND

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
2018-02-21CA18460-01ND
2018-05-16CB03528-01ND
2018-07-19CB08253-01ND
2018-10-16CB14421-01ND
2019-10-30CC15944-01ND
2020-02-18CC20130-01ND
2020-02-18CD02777-01ND
2020-12-03CD13768-01ND
2021-10-13CE12487-01ND
2022-11-29CF12790-01ND
2023-02-03752-2301-1ND
2023-02-08752-2734-1ND
2023-10-3137729_23-61683ND