Know Your Environment. Protect Your Health.

Ethylbenzene

City of Leon Valley

Ethylbenzene, a component of petroleum, is a volatile cancer-causing chemical primarily used for production of plastics and rubber. Ethylbenzene is also released from gasoline fuel emissions. Read More.

In animal studies, exposure to ethylbenzene causes tumors. Ethylbenzene can also damage lungs, liver, kidneys and the nervous system. The International Agency for Research on Cancer classifies ethylbenzene as “possibly carcinogenic to humans.”

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20191.07 ppb71ND - 7.50 ppb
20200.0625 ppb81ND - 0.500 ppb
20210.163 ppb81ND - 1.30 ppb
20220.0625 ppb81ND - 0.500 ppb
2023ND80ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 300 ppb

The EWG Health Guideline of 300 ppb for ethylbenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 700 ppb

The legal limit for ethylbenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1950s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-23AE09914ND
2018-03-02AE16656ND
2018-04-26AE24190ND
2018-04-26AE24188ND
2018-08-17AE37649ND
2018-08-17AE37653ND
2018-10-26AE44764ND
2018-10-26AE44766ND
2019-03-01AE56915ND
2019-03-01AE56919ND
2019-04-25AE63758ND
2019-07-19AE75356ND
2019-07-19AE753587.50 ppb
2019-10-09AE86133ND
2019-10-09AE86135ND
2020-01-30AE963230.500 ppb
2020-03-25AF04528ND
2020-04-09AF06303ND
2020-04-09AF06305ND
2020-07-08AF18899ND
2020-07-08AF18901ND
2020-11-02AF32838ND
2020-11-02AF32840ND
2021-01-14AF39552ND
2021-01-14AF395581.30 ppb
2021-04-01AF48854ND
2021-05-13AF53869ND
2021-08-03AF64491ND
2021-08-03AF64493ND
2021-12-09AF78497ND
2021-12-09AF78505ND
2022-02-14AF84680ND
2022-02-14AF84682ND
2022-04-28AF948370.500 ppb
2022-04-28AF94841ND
2022-07-15AG04971ND
2022-07-15AG04973ND
2022-10-18AG17425ND
2022-10-18AG17427ND
2023-02-17AG29691ND
2023-02-17AG29695ND
2023-04-21AG37706ND
2023-04-21AG37738ND
2023-08-14AG52400ND
2023-08-14AG52408ND
2023-10-06AG58929ND
2023-10-06AG58931ND