Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

City of Arp

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-03-26Q1812082001ND
2018-03-26Q1812082010ND
2019-03-20Q1911657006ND
2019-03-20Q1911657009ND
2019-06-04Q1931258003ND
2019-09-05Q1962480003ND
2020-12-01Q2047579001ND
2020-12-01Q2047579003ND
2021-06-10Q2115262009ND
2021-06-10Q2115262011ND
2022-03-30Q2209980005ND
2022-03-30Q2209980007ND
2023-02-23Q2307630001ND
2023-06-01Q2320524006ND