Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Pittsburgh Water & Sewer Authority

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND30ND
2021ND30ND
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
2018-05-0218E0265-01ND
2019-05-2119E2494-01ND
2019-12-1319L1687-01ND
2020-02-0521752605.00ND
2020-05-0522310192.00ND
2020-10-2323270632.00ND
2021-02-0223970434.00ND
2021-06-1024731861.00ND
2021-06-1024731862.00ND
2022-05-0326743752.00ND
2022-05-0326743753.00ND
2023-05-1829001691.00ND