Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Northeast Knox U D

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND10ND
2021ND30ND
2022ND50ND
2023ND50ND

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 Result
2018-01-17ND
2018-04-12ND
2018-07-11ND
2018-10-16ND
2019-01-15ND
2019-04-09ND
2019-07-16ND
2019-10-17ND
2020-01-15ND
2021-01-21ND
2021-05-20ND
2021-08-19ND
2022-01-20ND
2022-01-20ND
2022-04-21ND
2022-07-19ND
2022-10-17ND
2023-01-17ND
2023-01-17ND
2023-01-17ND
2023-04-19ND
2023-10-17ND