Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Queens Harbor/pier Point

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
2018ND10ND
2019ND20ND
2020ND10ND
2021ND10ND
2022ND50ND
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
2018-10-097149-100918-V01VND
2019-04-167149-041619-V01VND
2019-10-087149-100819-V01VND
2020-10-277149-102720-V01VND
2021-10-197149-101921-V01VND
2022-01-127149-011222-V02VND
2022-04-277149-042722-V02VND
2022-07-127149-071222-V02VND
2022-10-117149-101122-V01VND
2022-10-117149-101122-V02VND
2023-01-10752-1051-1_AND
2023-08-28752-11002-1ND
2023-10-04752-12302-1ND